Control Data 3228-A, 3229-A Reference And Instruction Manual

Reference/Instruction Manual

CONTROL

3228-A/3229-A

TAPE

CONTROLLER

MAGNETIC

DATA@

60100300

Record

of

Revisions

REVISION

A

B

C

(4-12-65)

D

(6-7-65)

Addition

of 2 Parts
Incorporation
the

Product

manual

Table
II -32,
11-45,

III-9,

Updated

obsoletes

of

Contents

II -

33,

II-47,

A-11

Parts

NOTES

Lists

of

Change

Designation

all

(iii),

II -35,

11-49,

and

A-13

List

II -37,
II-51,

(pages

as
Order
to

3228/3229 -A04.

previous

1-1,

II -39,
II

revised.

C-1

Appendices

893

O.

editions.

1-11

through
II -41,

- 5 3,

II-55,

through

C

which

1-13,
II -42,
11-

C-6).

and

D.

advanced

This

11-31,

II

- 4 3 ,

62,

111-4,

Pub.

No.

1965

Control
in

60100300

Data

the

United

Corporation
States

of

America

June,

©

1965,

Printed

Address
manual

Control
Technical
4201
St.

or

use

this

book.

comments

to:

Data

North

Paul,

Comment

concerning

Corporation

Publications

Lexington

Minnesota

Sheet

Department

Avenue

55112

in

back

this

of

CONTENTS

Part
Section
Section

Physical

Functional

Section

Switches

Section

Section
Section

Section

Register
Register

Reply
Register

I.

Description

1.

Introduction

2.

Description

Description

Description
Clear
Connect
Status
Select

Function

Format

Interrupt
Information
Data

Conversions

3.

Operation

and
Equipment
Longitudinal
Write
Vertical

Parity
Interrupt
BCD

Part

II.

1.

Connect

2.

Function

3.

Function
(Format)

4.

Information

Transfers
Transfers

Transfers

and

Codes

Transfer

Indicators

Selection

Parity

Theory

Selection

Operation

Transfer
During
During

During

Operation

Switch

of

Operation

Write
Write

Read

I-I

1

....

4

1-4
1-4
1-5
1-5
1-7

1-8

1-10
1-11
1-12

1-16
1-16
1-16
1-16
1-16
1-17
1-17

II-I
II-5

II-I0
II-21

II-21

II-26
II-26

Write
(First

Write
(N

ot

Write
(Last

Write
(Non-Stop)

Write
(Write

Read
(First

Read
(Not

Read
Sequence

Read
Sequence

Reverse
Sequence

Suppress

Operation

Section

Skip
Write
Search
Search

Backspace

Rewind
Rewind

Section

Interrupt

Status
Lost

Write
Lost

Operation

Output

Operation

First

or

Operation

Output

Operation

Operation

Sequence

Word)

Sequence

Last

Sequence

Word)

Sequence

Sequence

Reply)

Operation

Two

Operation

First

Operation

(End

Operation

(Not

Read

Sequence

Frames)

Sequence

Two

Frames)

Termination

of

Termination

at

Operation

Record)

End

Assembly/Disassembly

Sequence

5.

Function

Operation

Directives

Bad

Spot

File

Mark
Forward
Backward

to

to

Unload

6.

Program

Conveniences

Function

Data

Condition

Data

During

Read

Output

of

File

File

During

Word)

Record)

Motion

Mark

Mark

II-31

II

- 31

II-32

II-32

II-33

II-41

II-42

II-42

II-43

II-44

II-44

II-53
II-53
II-53
II-53
II-53
II-54
II-54

II-62
II-65

II-66
II-66

iii

Rev.

C

Part

III.

Maintenance

Section

2.

Logic

Cabling

III

-1

Section

Part
1-1
1-2

2-1
2-2
2-3
2-4
2-5
2-6

2-7

2-8
2-

9
2-10
2-11
2-12
2-13
2-14
2-15
2-16
2-17
2-18
2-19
2-20
2-21
2-22

Environmental

1.

Description

1.

3228/3229

3228/3229

System
Part

Connect
Connect

Connect
Function
Function
Function

Clear
Parity

Binary

Clear
Release

Theory

II.

FFs
Operation
Timing

Select
Reply / Reject
Select

and

Mode

Mode

Operation

Operation

Density

200

BPI

Operation

556

BPI

Operation

800

BPI

Operation

Tape

Data

Motion
Reverse
Clear

Transfer

Operation

Reverse

Disassembly
BCD

Conversion

0-to-12

Conversion

Appendix
Appendix

Appendix

Control
Magnetic

FFs

Timing

Release

Operation

Signals

Operation

Control

Care

A.
B.

C.

and
Panel

Tape

of

Operation

Tape
3228/3229

System
3228/3229

Operation

III-l

Section

3.

General
Procedure

Synchronizer / Controller

Operation

Parts

in a 3400

List

FIGURES

1-2

1-2

II-2
II-3
II-4
II-6
II-7
II-8
II-9
II-I0
II

-11
II-12
II-13
II-14
II-15
II-16
II-17
II-18
II-19
II-20
II-22
II-23
II-24
II-24

2-23

2-24
2-25
2-26
2-27
2-28

2-29

2-30

2-;:H

2-32

2-33

2-34
2-35
2-36

2-37

2-38
2-39
2-40

Write

(One

BCD

12-to-0
Assembly
Write

Flow
tion
Word

Flow
tion

ation
Read

Flow
tion
Word

Flow
tion

Read

Flow

tion

Read
Skip
Write
Search

Mark
Search

Mark
Backspace
Rewind
Rewind

Glossary
or

3600

Register

Channel)
Conversion

Conversion

Control

Timing

Chart:

and

Write

Operation

Chart:

and

Write

Timing
Chart:

and

Read

Operation

Chart:

(Not

End

Nonstop
Chart:

(End

of

Nonstop

Bad

Spot

File

Mark

Forward

Backward

Unload

Maintenance

Write

Write

First

Prepara-

Data

Termina-

Nonstop

Read

Read

First

of

Record)

Prepara-

Data

Termina-

Operation

Read

Termina-

Record)

and

Operation

to

File

to

File

Oper-

and

III

-10

II-25
II-28
II-29
II-30
II-35

II-37

II-39
II-45

II-47

II-49

II-

51

II-

55

II-56

II-57

II-58
II-59
II-60
II-61

iv

FIGURES

(Cont'd)

2-41
2-42

1-1

1-2

2-1
2-2

3-1

Part

II
Interrupt
Interrupt

Part

1.

Select
on

Description

Assembly/Disassembly
Order

Function

Codes

Responses

II.

Part

Theory
Sequence

Codes

III.

and

Pin

Cable

Part

Connect
Function

Signal

Output

(Cont'd)

Ready

and

Operation

and

Status

of

Operation

Maintenance

Assignments:

Byte

II-63
II-64

TABLES

1-15

1-17

II-I
II-5

III-

2

2-43

2-44

3-2

3-3
3-4

3-5

3-6
3-7

Inte

rrupt

ation
Interrupt

of

Operation

Signal
Input

Cable
Signal
Signal

Data

I/O

Signal

Control

Data

Channel

Critical

on

End

on

Abnormal

and

Pin

Assignments:

Definitions
and

Pin

Assignments:

Cable

and

Pin

Assignments:

I/O

Cable

Signals

Delay

Table

of

Oper-

End

II-64

II-65

1II-3
1II-4

III-6

1II-7
1II-8
III

-11

v

3228/3229

Magnetic

Tape

Controller

PART

I.

DESCRIPTION

AND

OPERATION

The

CONTROL
for a Control
connected
follows
allows

data

flow.

The

3228

selected

to

the

the

may

and
systems.
rewind

functions

operations.

the

higher

The

603

and

this

manual,
speed.
the

first

If

a

delay

DATA)~

Data

3000

one

3000

method

data

The

inherent

channel

controllers

use

up

operated

The

controller

of

the

Operation

performance

604

tape

any

time a delay

delay

period

period

SECTION

3228/3229

series

series

to

Computer

12 -bit

in

any

select a particular

may

to

four

tape

by

the

exchange

can

read

tape

handler

of

the

controller

604

or

607

handlers

move

period

is

mentioned,

is

for

150

1.

Magnetic

data

3000.

use

all

handlers,

or

free

tape

tape

is

ips

and

INTRODUCTION

Tape

System

channel.

series

peripheral

tape

603,

all

604,

the

3229

of

requests

write

the

using

on

one

controller

603

handlers)

at

75

ips,

mentioned

followed

the

by

second

Controllers
(Figure

The

schem e of

1-

are

2).

equipm

handler

and

tape

or

all

up

to

replies

handler

or

606

and

606,

eight.

the

tape

modifies

or

typical

data
handlers

is a programming

the

606

and

by

itself,

another

for

75

delay

ips.

it

is

input/output

Either

selection

ent.

all

The

The

607

tape

to

at a time.

channel

consideration.

607

at

150
common
period

devices

controller

and

controller

and

synchronizes

tape

handlers.

handlers

the

60X

Search

for

(as

opposed

ips.
to

either

in

parentheses,

can

operation

are

tape

and

other

to

In

tape

be

Whenever a page
refers
Diagrams

):<

to a page

Registered

Manual

trademark

reference

in

the

(Pub.

in

this

3228/3229

No.

60093700),

of

Control

manual

Magnetic

Data

Corporation.

I-I

is

Tape

given

in

parentheses,

Controller

Custom

e.

g. :

(Page

er

Engineering

6),

Rev.

it

C

0507

~

0501

l

6

7

0

6

0 0

BCD

f

0511

LONGITUDINAL

0

5

INT

t

OSlO

Figure

0

4

1-1.

PARITY

0

3

0

VERT

PARI

TY

i

0509

3228/3229

0

2

0

[IJ

0

WRITE

3228

(O

*

t

N

-7)

SWITCH

i

0508

Control

h~~1

~

~~

Panel

L-...J

EQUIPMENT

1

~

__

3_00_0

__

5_E_R_IE~S~,_12_-_B_IT

DATA

CHANNEL

__

~CONTROLLER

*

3228-4
3229-8 TAPE

Figure

TAPE

HANDLER MAXIMUM.
HANDLER MAXIMUM.

1-2.

3228/3229

1-

603,604,606,

TAPE HANDLERS

Magnetic

2

Tape

OR

607

System

3229

*

Computer -Tape
These

control

1)

the

Connect

Data
Controller
Tape

2)

Status

3)

Function -Format

Format

Motion

Interrupt

Handler

following

(code

Channel

Handler

(on

status

Release
Parity
Density

Clear

Reverse

Directives
Rewind
Rewind
Backspace
Search
Search
Write
Skip

Ready

End

Abnormal

operations

are

functions:

and

signal)

lines

after

(code

connect)

and

Mode

Read '-Release

Unload

Forward

Backward

File

Bad

Spot

and

Not

of

Operation -Release

End

to

File

to

Mark

Busy -Release

of

Operation -Release

selected

signal)

Same

Mark

File

Mark

(604/607

Same

Same

by

computer

only)

Same

EF

codes

and

signals.

4)

Information

Write

Read

5)

Assembly/Disassembly

Transfer

(signals)

(signals)

or

Character

(signal)

1-3

SECTION

2.

DESCRIPTION

The

3228/29

rations.

of

an

actual

60090100).

CLEAR

Prior

five

to

possible

1)

2)

controllers

The

installation
installation
Description

initial

use

ways

Clear
This
handler

Clear
This

Channel

instruction

connection.

(2 J,Lsec)

instruction
"connected"
channel.

of

of

clearing

in

by

of

the

(100

the

PHYSICAL

may

be

mounted

engineer

using
the

data

3228/29

FUNCTIONAL

tape

controller,

the

J,Lsec)

clears

clears

all

the

sense

DESCRIPTION

in a number

can

determine

from

control

controller:

activity

tape

handler

that

Status

of

the

accurate

the

3200

Site

panel

is

DESCRIPTION

the

system

in

the

should

data

connection

signals

are

different

Preparation

in

Section

be

channel

but

still

available

cabinets

physical

3,

Operation.

cleared.

and

clears

the

controller

and

description

Manual

There

the

for

the

configu-

(Pub.

are

tape

remains

data

No.

3)

The

latter

controller

4)

5)

Both

Master

Release
This

instruction

relevant

two

Function

is

connected

Power
When

power

Logic

the

data

External
This

clears

No

Status

Clear

clears

only

in a 3228/3229 -used

instructions

to a tape

On

MC

is

in

the

applied

controller

to

is

channel.

MC

all

tape

handlers

signals

operations

are

available

place

the

(Clear

handler.

the

3228/29,

also

connected

the

connection

for

compatibility).

and

cleared,

to

the

data

3228/29

I-4

for a connected

Release)

all

tape

handlers

and

no

Status

and

clears

channel

in

binary

can

only

the

after

format.

be

connected

signals

logic

executing

tape

used

are

in

handler

after

are

available

the

controller.

this

(not

the

cleared.

to

operation.

CONNECT

The

computer

A

manual
except
must
tion.
of
used.

the

the

match

Bits
tape

If

processor
in

the

Connect

STATUS
After
status

the

of

sends a 12-

Equipment

ones

having

the

switch
0, 1,
handlers

none

of

via

data

code,

desired

the

handler

Selection

the
setting

and 2 may

the

3228/29

the

controllers

channels

an

Internal

tape

handler

before

bit

Connect

switch

correct

on

have

have

has

attempting

code
on

bit

combinations

the

3228/29

octal

values

will

communicate.

or

any

the

proper

Reject

been

over

the

tape

or
of

other

equipments

switch

is

generated

connected,

any

further

the

data

controller

in

the

processor

0 - 7.

Bits

setting,

by

it

is

operations.

channel

bits

9,

These

3,
physically

the

usually

to

locks

10,

out
and

will

bits

determine

4,

5, 6, 7,

or a parity

computer.

necessary

the

t~pe

all

Connect

11.

not

make

and 8 are

connected

error

controller.

These

the

connec-

with

to

the

occurs

to

check

codes
bits

which

not

the

Ready
A
has
the

The

control

Ready

been

tape

Ready

(XXXI)

handler

panel.

Read/Write
This

signal

1)

2)

3)

This

signal

1)

indicator

applied

signal

Control

is

present:

If

the

tape

During
etc.

and

).

Whenever

struction.

will

not

The

tape

on

and

the

is

controlled

is

not

(and/

handler

for 5 ms

the

be

handler

the

tape

present

data

present

tape

or)

is

channel

is

handler

handler

by

the

when

Busy

Ready.

after

if:

not

Ready.

lights

is

in

tape

the

(XXX2)

any

operation

begins

when

Automatic

controller.

tape

handler

executing

it

is

in a Ready

mode.

is

requiring

or

is

condition,

When

manually

tape

in

operated

motion

Automatic

(Read,

executing a Read/Write

i.

e. J power

mode,

from

\Vrite,

its

in-

2)

The

channel

a.

Lost

b.

Interrupt
ation

begins

Data

and

has
On
the

executing

occurred

Abnormal

Interrupt

or

is

executing a Read/Write

in a previous

End

of

Operation

signal

is

1-5

still

operation.

has

present.

occurred

instruction,

in a previous

and/

oper-

or:

Write

This
signal
from

File
This
Mark.

drops

End

Load
This

motion

End
This
tape

Enable

signal

is

the

Mark

signal

It

when:

of

File

Point

signal

begins.

of

Tape

signal

has

(XXX4)

is
absent,
tape.

(XX1X)

is

is

also

(1)

Mark

(XX2X)

is

(XX4X)

is

been

present

present

it

is

only

impossible

when

present

reading/writing

Forward,

present

present

rewound

when

when

past

when

the

to

the

tape

immediately

begins

or

Search

the

tape

the

End

the

End

file

protection

write

handler

after

on a new

End

is

at

of

Tape

of

Tape

on

tape,

has

writing

of

File

Load.

marker

marker.

ring

although

searched

an

record,

Mark

Point.

is

End

Backward

The

is

detected.

on

the

information

for

and

of

File

or

(2) a

signal

tape

reel.

may

located

Mark.

Backspace,

operation

drops

The

when

signal

an

This

is

When
be

read

End

signal

Search

initiated.

tape

drops

this

of

when

File

Density
See

table 1-2

Density
See

table 1-2

Lost

Data

This

signal

ler

is

When
Write

or

Connect

The

Lost

the

tape

is

absent.

(X1XX)

(X2XX)

(X4XX)

appears

ready

the

to

Lost

operations

code.

Data

controller

accept

Data

are

signal

during a Write

information

signal

appears

impossible

also

appears

has

data

ready

operation

but

the

Data

during a Write

until

the

Lost

during a Read

for

output,

(Write

signal

Data

operation

but

the

signal

from

operation,

signal

Data

present)

the

data

tape

is

cleared

(Read

signal

if

channel

motion

with a new

signal

from

the

tape

stops.

present)

the

is

data

control-

absent.

Further

Function

when

channel

1-6

If

the

of

the
cleared
1-2

will

The

Lost

via

a 3681

to

continue.

End

of

This

Lost

Data

record.

with a new

clear

Data

adapter.

Operation

signal

indicates

signal

Further

the

Lost

signal

(lXXX)

appears

Read

Function

Data

is

meaningless

However,

that

an

during a Read

operations

or

Connect

signal.

)

when

this

signal

operation

are

impossible

code.

the

must

is

completely

operation,

(Any

legal

tape

controller

be

cleared

finished.

reading

until

Function

if

Read/Write

the

is

attached

continues
Lost

Data

code

listed

until

the

signal

in

table

to

a

160/160-A

operations

end

is

are

Parity
This

signal

This

signal
External
Parity
mode.

SELECT

The

following

tion,

i.

and 5 of

motion,

The

proper

If

an

error
Parity
an

Internal

Error

(2XXX)
indicates
drops

Master

Error

signal

FUNCTION

information

e.,

the

the

Function

and

an

tape

occurs

Error

signal

Reject

that a parity

when

Clear

also

CODES

lower

12
code

octal 2 in

handler

in

the

appears

after

reading

begins

or a Power

appears

refers

bits

which

indicates

bits

3, 4,

must

be

Function

on a transmission

100

usec.

error

has

on a new

On

Master

when

to

an

the

Function

specify

End

the

format,

and 5 indicates

connected

code

(assuming

occurred

record.

Clear

of

codes

operation.

an

octal 1 in

during a Read/Write

A

causes

File

Mark

used

An

bits

Interrupt.

before a Function

the

proper

parity

error

Clear

this
is

with

Channel

signal

sritten

the

or

Function

octal 0 or 4 in

3, 4,

and 5 indicates

instruction

unit

is

connected),

line

and

the

operation.

instruction,

to

drop.

read

bits

can

computer

The

in

Binary

instruc-

3, 4,

be

issued.

a

tape

issues

Once a function
channel,
some
the

it

operation

operation

(Backspace,

is

possible

on

on

the

the

second

to

connect

second

Rewind,

tape

handler

etc.)

another

handler,

terminates.

is

tape

and

I-7

initiated

handler

reconnect

un a tape
on

the

same

the

first

handler

channel,
tape

on a given

perform

handler

when

Rev.

C

FORMAT
Release
A

Release

(0000)

code

clears

the

existing

unit

connection

for a tape

handler.

Binary
A

0001

(0001)

code
generator
a

total

of

the

longitudinal
operations,
a

status

Coded
A

0002

(0002)

code
notation.
(vertical)
Write

556
200

A

operations

BPI
BPI

0003/0004

556/200

allows

makes

seven

a

constant

line

if

allows

A

parity

direction

Density

Density

code

density.

all

the

separate

number

a

vertical

all

generator

on

are

(0003)
(0004)

permits

information

total

number

tracks

of

bits

transverse

parity

information

the

seven

performed

all

to

be

of 1 bits

on

tape.

in

each

parity

error

to

be

makes

the

tracks

in

the

information

written

The

of

the

check

is

detected.

written

total

on

same

to

odd

seven

number

tape.

manner

be

or

in

the

End

is

made.

or

Constant

written

read

transverse

of

Record

tracks

read

of 1 bits

as

onto

in

A

in

in

binary

check

even.

parity

binary

even
parity
binary

or

notation.

(vertical)

character

During

error

coded

in

checks

format.

read

from

Read

is

decimal

the

transverse

during

A

parity

direction

makes

or

indicated

Read/

the

tape

on

Write

on

(BCD)

at

Clear
A

0005

code

when

800

BPI

A

0006

density.

Set

Reverse

This

code

607

Tape

Rev.

C

(0005)

code

the

Density

code

(On

is

Handlers

clears

all

channel

existing

has

(0006)

permits

604/607

Read

used

all

information

Tape

(0041)
for a Revers e Read

only.

)

tape

completed

Handlers

handler

all

operations

to

be

only.

operation.

connections.

written

)

1-8

on

one

or

read

(See

Revers e Read

It

is

or

onto

desirable

more

or

from

tape

handlers.

the

section.)

to

issue

tape

this

at

(On

800

604/

Clear
This

All

Reverse

code

of

the

Read/Write

clears

Format

control

Read

the

codes

(0040)

condition

(0000-0006,

is

busy.

established

0041,

by

0040)

the

0041

result

Format

in a Reject

code.

if

attempted

when

the

Rewind
A

0010

code

further

appears

Rewind

A 0011

code

further

Backspace
A

0012

code
beginning
length

Search

Search
A
File
marks

behind

End
End

0013/0014

Mark

are

(0010)

rewinds

Rewind

instructions

on a status

Unload

(0011)

rewinds

operations

(0012)

backspaces

of

the

the

of

File

of

File

code

signal

detected,

line

on

tape,

Load

Mark
Mark

searches

appears

tape

when

tape

this

tape

this

Point.

tape

at

high

speed

will

initiate

the

operation

at

high

speed

tape

are

one

record

code

will

Forward

(0013)

Backward

forward/reverse

on a status

motion

continues

(225-400

an

until

locked

length.

backspace

(0014)

line

imm

is

all

out

until

when

until

inches/second)

ediate

Reply.

complete.

the

tape

until

the

If

the

tape

from

an

End

the

operation

tape

is

is

on

tape

has

Load

Point

Load

of

File

is

completely

to

the

A

Load

the

supply

been

occurs

Point

:Mark

complete.

off

Load

Point

reel.

reloaded

than

to

one

is

detected.

If

the

supply

Point.
signal

All

manually.

at

record

no

Any

the

A

file

reel.

Write
A

and

Skip
A

End

0015

BCD

Bad

0016

of

End

of

code

writes

format.

Spot

code

moves

Operation

File

(0016)

Mark

178

Writing

and

is

selected,

(0015)

as

erases

complete.

Codes
the

0010-0016

Read/Write

an

End

an

End

tape 6 inches

Interrupt

control

of

File

of

File

result

Mark
Mark

in a forward

will

occur

NOTE

in a Reject

is

busy.

I-9

(even
does

when

transverse

not

change

direction.

the

if

attempted

Skip

parity)

the

Bad

when

in

current

If

Interrupt

Spot

both

binary

format.

operation

On

is

Rev.

C

INTERRUPT
All

desired
occur
line

switch
interrupt

This

during

the

is

signal

Interrupt

set

line

Clear.

Interrupt

any

other

signal

to

5,

5.

Any

is

also

instructions

operation.

is

any

Interrupts

new

cleared

must

transmitted

coming

Interrupt

by

releasing

come

The

Equipment

on.

from

instruction

all

before a Read

Selection

For

example}

the

controller

clears

three

possible

the

or

Write

switch

if

the

Equipment

will
existing
Interrupts

operation,

determines

be

transmitted

Interrupt

or

doing a Master

but

which

Selection

on

signal.

can

Interrupt

Release
The

0020

tape

handler

unit

is

and

Not

Interrupt
Release
A

0022

after:

1)

2)

3)

4)

Release

on

Interrupt

code

in

Automatic

Busy

on

Interrupt

code

A

File

operation

Load

A

Skip

Interrupt

Ready

and

ob.

Not

Ready

allows a tape

is

in a Ready

mode,

code

0021

End

of

Operation

on

End

allows a tape

Mark

Point

Bad

on

has

has
Spot

End

Busy

and

unit

and

and

clears

(0022)

of

Operation

handler

been

been

detected

operation

of

Operation

(0020)

Not

to

Not

Busy

all

tape

this

to

located

Busy

(0021)

send

an

Interrupt

condition,

motion

condition.

(0023)

send

an

Interrupt

in a Search

during a Rewind

has

been

completed.

code

0023

has

clears

signal

i.

e.,

ceased.

signal

File

Mark

operation,

when

this

out

on

the

power

Release

out

on

Forward

or

condition.

channel

is

applied,

Interrupt

the

channel

or

when

the

on

Backward

this

Ready

Interrupt
Release
A

0024
normal
Point,
Ready.

ditions

Rev.

on

Interrupt

code

operation

Transverse

In

is

C

Abnormal

on

allows a tape

occurs.

all

but

the

encountered

End

Abnormal

Parity

last

and

unit

Error,

case,

an

of

Operation

to

The

End

End

of

send

abnormal

Lost

the

Interrupt

of

Record

(0024)
Operation
an

Interrupt

operations

Data,

and

check

1-10

(0025)

Connected

occurs

signal

are:

when

character

out

on a channel

End

of

Tape

one

or

is

written

Tape,

Handler
more

after

File

Becoming

of

these

or

read

an

Mark,

con-

by

ab-

Load

Not

the

tape

unit.

Interrupt

condition
Connected

ation

or

A

new

Read/Write

the

methods

Interrupt

The

processor
Activity
activity
(in

the

processor

The

processor
Interrupt
by a new

In

the
occurs
(e.

g.,

Tape

Handler

(2)

when a 0000

mentioned

on

Abnormal

will

instruction

and

store

will

signal

Write

is

instruction.

case

of

Interrupt

immediately

if

someone

Becoming

Function

operation

previously

End

enter

the

(in

the

present

an

Interrupt

enter

an

cleared

when

were

to

instruction

cannot

of

Operation

Interrupt

processor

word

routine),

Interrupt

(in

the

processor

on

Connected

the

handler

turn

Not

Ready

start

in

this

routine

Interrupt

count,

reading

routine

off

the

until
chapter

code

etc.

Tape

goes

power

will

not

(Release

the

Interrupt

under

0025

clears

and

process

routine)

When

may

be

and

process

Interrupt

Handler

Becoming

from a Ready

on

the

tape

occur:

(1)

Connected

signal

the

Interrupt

this

condition.

the

Interrupt.

will

terminate

the

Interrupt

initiated

routine),

by a new

the

Interrupt.

writing

Not

Ready,

to a Not

unit).

Ready

Interrupt
during a Connect
Unit)

is

cleared
section.

signal

is

being

data

Read

may

executed.

by

Release

A

Stop

channel

is

cleared
instruction.

When

the

be

initiated

on

oper-

one

of

Channel

INFORMATION
Write
Mter

check

present,

write
not

by

the

status

on

present,

the

Ready

tape

for a Write

the

protective

the

tape

the

signal,

Read
In a Read
necting,

It

is

possible

During

ically.

not

necessary

Read

He

operation,

checking

when

and

may

TRANSFER

handler

data

only

has

when

channel

the

the

status,

to

check

the

protective

Write

also

program

been

connected

Enable

ring

is

probably

this

(bit 2 in

condition

hangs

Write

order

and

operation

of

choosing

for a Write

ring

operations,

one

up.)

events

is

not

the

or

more

and

format

the

Status

missing

has

If

may

is

the

proper
Enable,
present

been

the

Write

begin.

similar

on

from

since

programmer

Interrupts

chosen,

Reply

the

corrected.

Enable

to

the

format,

Read

the

tape

may

to

let

the

code).

tape

is

Write

the

Read

operations

reel.

choose

the

programmer

If

this

reel.

(If

It

the

present,

operation.

operation

to

check

computer

signal
is

possible

Write

Enable

accompanied

After

from

the

status
know

should

is

not

to

con-

begins.

tape

period-

when

is

are

1-11

Rev.

C

the

present

operation

is

complete.

Reverse
The

read
word
to

the

made

To

all

0041

Read
from

Read

322X

can

from

tape

is

read

word

in

the

initiate a Reverse
tape

motion

(Reverse).

operation
the

322X

Transverse

one

exception:

check

is

made

frames.

(On

604/607

read

information

and

assembled

in a reverse

which

final

was

order

has

stopped), a 322X

When

will

begin.

to

indicate

and

longitudinal

if

the

on

that

Tape

direction

initially

of

the

Read

the

operation

Read

A

that

first

frame

character.

Handlers

in a reverse

into

written

bits

during a Reverse

instruction

Reverse

the

12-bit

parity

read

Vertical

12-bit

from

on

bytes

tape

the

(assuming

controller

Assembly

bytes

checking

is a record

Only)

direction

tape

is

occurs

parity

and

sent

and

entered

from

Read

format

must

executed

signal

should

as

check

checking

from

tape.

to

the

into

storage.

operation.

has

already

first

receive

in

the

will

be

be

assembled

in a normal

character,

is

Six-bit

data

channel.

storage,

There

been

the

processor,

sent

to

in

Read

no

performed

frames

it

is

is

no

selected

Function

the

the

data

reverse

operation

vertical

on

all

are

When

identical

change

and

code

Reverse

channel

order.

with

parity

remaining

a

If

C\.

Reverse

operation

Parity

An

If

the

The

ation

DA

errors

End

of

a

Backspace

tape

will

Function

terminates.

T A

CONVERSIONS
Transmission
All

information
and 1 parity
a

Write

Rev.

operation

C

Read

will

halt

and

Record

function

"backspace"

code

Parity

transfer

bit

(odd

is

attenlpted

indefinitely.

Interrupts

signal

is

is

selected

forward.

0042

(Clear

between

parity).

and

generates

from

may

returned

Reverse)

the

The

the

Load

be

handled

to

the

during

data

controller

bit

during a Read

Point,

as

if

data

channel

the

time a Reverse

should

be

channel

checks

1-12

the

issued

and

the

operation

~hen

when

the

controller

accuracy

operation.

were a Normal

a

record

Read

the

gap

format

Reverse

uses

of

the

is

is

Read

12

parity

The

Read.

reached.

selected,

oper-

bits

of

bit

Read

data

during

Illegal
The
tape.
tape
the

128

the

BCD

tape

handler

Therefore,

handler

controller

to

all

zeroes

computer.

generates a sprocket

if a 6-bit

will

not

automatically

when

Assembly / Disassembly

Example I in
word

are

bled

to

the

table

written

data

1-1

on

tape.

channel.

data

recognize

the

converts a character

reading.

shows

the

Example

Example V shows

pulse

character

frame

This

makes

order

IV

in

shows

whenever

of

all

and

an

128

which

the

the

it

zeroes

error

of

all

BCD

an

the

two

order

assembly

senses a bit

is

written

would

zeroes

illegal

occur.

in

to

128

number

characters

in

which

data

during a Reverse

in a frame
BCD
To

prevent

when

in

in

each

on

tape

mode,

writing

relation

data

is

assem-

Read.

on

the

the

this,

and

to

channel

Suppress

If

the

operation,

Assembly/Disassembly

Suppress

bits 6 through

through 5 are

If

the

signal

bits 6 through

VII,

and

VIII).

Programlning

1)

If

data

Disassembly

is

that

may

controller
with
attempted,
through 5 of

example

Assembly/Disassembly

11

of

written

is

sent

11

of

to

the

on

the

the

Data

tape

controller

Channel

Considerations:

is

to

be

assembled

mode,

in

Suppress

be

written

zeroes.

will

the

the

Assembly/Disassembly

on

the

automatically

If

an

odd

inverted

last

IX).

the

Data

(table

from a tape

assembly

tape.

number

assembly

Data

Channel

signal

Channel

1-1,

is

sent

word

examples

during a Read

input

word

are

that

difficulties

If

this

occurs,

fill

in

bits 6 through

of

frames
will

be

word

will

to

the

are

II

operation

packed

was

recorded

may

be

mode,

and

are

written,

one

frame

be

filled

controller

discarded

and

II!).

(forward

with

zeroes

encountered.

an

odd

the

tape

is

11

of

the

and a Reverse

out

of

in

with

during a Write

and

only

or

reverse),

(examples

in

Suppress

The

number

read

forward,

last

input

order

and

zeroes

bits

Assembly/

problem

of

frames

word

Read

bits

(table

0

VI,

the

is

0

1-1,

2)

If

a

Reverse

check

character

Channel
because

read

as

Read

character).

of

an

even

the

first

may

Data

is

attempted

be

If

number

Channel

read

no

to

check

of

bits

in

Suppress

the

Data

character

in

each

character

I-13

Assembly / Disassembly

Channel

exists

tape

(table

as

the

(check

channel),

1-1,

examples

last

character = zero

the

frame

last

VII

mode,

(first

frame

and

Data

will

VII!).

Rev.

the

be

C

Write

Write

II

Write

III

I

TABLE

Data

Channel

Word

65432

tl~I~I~lgl~1

Word

Word

5 4 3 2 1

6

I G E C A

K

J H F D B

L

543

I G E C

J H F D

---.

2 1

1-1.

1

A
B

ASSEMBLY/DISASSEMBLY

Tape

To

To

To

Frame

Frame

Frame

1

23456

IAIBlclDIEIFIGIHll1

Tape

Motion

234

1

CEG

A

234

1

A C E G I

~

5 6 7

I K

5 6

7 8 9 10

CC

CC

JI

BYTE

11

12

KI

LI

ORDER

13

cci

SUPP.

SUPP.
EVEN

SUPP.

ODD

AID

AID

NUMBER

AID

NUMBER

OF

OF

WORDS

WORDS

Read

Frame

IV A B C D E

Read

Frame

V

Read

Frame

VI

Read

Frame

VII A B

Read

Frame

VIII

Read

Frame

IX

1

2

1 2

ABCDEFGH

1

234

ABCDEF

1 2

1 2 3 4 5 6

AB

1

234

ABC

Tape

345

345

5 6

345

CDE

C D E F

5

D E

6 7

FGH

678

CC

6

F

CC

CC

6

F

G

8 9

I J

9 10 11 12

I

7

7

7

7

8

CC

---+

10 11 12

K

L

J K

L

6-bit

13

CC

13

CC

bytes

'-A'B'C

To

To

To

To

To

To

Data

Word

Word

Word

Word

Word

Word

zero

6

Channel

6 5 4 3 2 1

K I G E C A
L

JHFDB

654

ACEG
BDFH

6

FEDCBA

o

7 6

ABC

000

3 2 1

543

000

543

D E

0

65432

AB

CDEF

o 0 o

4 3

000

2 1

o B D F

ACEG

check

character

cc!'

I K
J L

2 1

0 0

000

2

FCC

1

SUPP.
FORWARD
EVEN

SUPP.
REVERSE
EVEN

SUPP.

FORWARD

EVEN

1

SUPP.
REVERSE

EVEN
CC I ALL

SUPP.
REVERSE

EVEN
CC = ALL

SUPP.

REVERSE

ODD

AID

NUMBER

AID

NUMBER

AID

NUMBER

AID

NUMBER

ZEROES

AID

NUMBER

ZEROES

AID

NUMBER

OF

OF

OF

OF

OF

OF

FRAMES

FRAMES

FRAMES

FRAMES

FRAMES

FRAMES

1-15

SECTION

3.

OPERATION

Read/Write

For

For

EQUIPMENT
An

Equipment
switch
the

controller

the

setting

time

the

603/604

200

bpi

556

bpi --24 fJ,sec

800

bpi --16.6

the

606/607

200

bpi --33.

556

bpi --12

800

bpi

SELECTION

Selection

designates

will

of

the

When a controller
Selection

switch

on

switch

the

tape

for

one
tape

- -

66.

6 fJ,sec

tape

3 fJ,sec

--

8.3

switch

the

controller

be

transmitted

Equipment

is

connected

is

illuminated.

handler

6-bit

frame:

handler:

fJ,sec

(604

handler:

fJ,sec
fJ,sec

(607

SWITCHES

SWITCH

Selection

lights.

only)

only)

AND

is

associated

as

equipment

on

one

switch.

to a tape

When a tape

INDICATORS

with

number

of

the

eight

handler,

handler

each

Interrupt

a

white

channel.

N.

Any

indicator

is

in

use,

The

setting

Interrupts

lines

corresponding

in

the

Equipment

coming

the

Equipment

of

this

from

to

Select

If

a

transmission

red

indicator

in

LONGITUDINAL

At

the

end

of

an
Parity
error

indicators

has

occurred.

WRITE

The

Write

The

Write

VERTICAL
A

Vertical

operation.

indicator
indicator

PARITY

Parity

This

parity

the

Controller

PARITY

operation

should

is

illuminated

remains

Error

light

is

error

occurs

involving

be

lit.

on

indicator
lit

until a new

during a Function,

Equipment

longitudinal

If

one

or

during

until

the

lights

Selection

more

Write

Write

if

a

record

I-16

parity

are

and

operation

vertical

is

begun.

switch

checking,

lit,

it

Write

parity

Read,

or

Write

operation,

lights.

none

of

the

Longitudinal

indicates a longitudinal

End

of

File

Mark

operations.

terminates.

error

occurs

during

a

parity

an

INTERRUPT

This

indicator

signal

drops.

BCD
This

indicator

tape.

(INT)

lights

lights

when

when

an

Interrupt

BCD

mode

occurs.

is

selected

This

or

light

an

End

is

of

lit

File

until

Mark

the

Interrupt

is

written

on

Rewind
Rewind

Backspace'~

Search

Unload

End

of

Forward

Release

.

Binary
Coded
Density
Density

Interrupt

Not

(556
(200

on

Busy

Releas e Inte

Ready

Interrupt

and

on

Operation

XXXI
XXX2

Ready
Read/Write

Busy
XXX4
XXIX
XX2X
XX4X

i.<

Write

End

If

a

Backspace

forward

File
Load

of

direction.

TABLE

File

BPI)
BPI)

Ready

rrupt
Not

Busy

End

Enable

Mark

Point

Tape

1-2.

Mark

and

on

of

Control

operation

FUNCTION

0020

0021

0022

STATUS

and/

or

is

executed

CODES

Release

Interrupt

Release

RESPONSE

XIXX

X2XX

X4XX

lXXX

2XXX

when

Reverse

AND

STATUS

Interrupt

Operation

of

Operation

Interrupt

End

of

Operation

Density

Density

Lost
End
Transverse

Read

on

Abnormal

Data

of

Parity

is

RESPONSES

on

End

End

on

Abnormal

(1

in

bit 6 indicates

556

BPI)

(0

in

bit 6 and

indicates

(800

BPI) 1 in

Operation

or

Longitudinal

Error

set,

tape

of

200

is

bit
BPI)

bit

moved

0023

0024

0025

7

7

in

a

1-17

PART

II.

THEORY

OF

OPERATION

The

controller

the

Data

Channel.
handler
in

Figures

Connect

(B)(Figure

2-1

code

and

+0. 2 psec -start

+ 1

psec -enable

receives

The

a

Connect

2-1).

and 2-2. A

TABLE

signal

from

Check

Connect

Set

Clear

Set

T 2

if

proper

Set

Light

SECTION

12-

bit

Connect

code,

The

sequence

timing

2-1.

the

data

code

timing

chain

Connect

Controller

Connect

Reject

FF

Connect

Controller

Controller

1.

code

AXXB,

of

events

chart

for

the

CONNECT

channel.

for

transmission

(T

1).

FF -prevent

Connect
code

if

Read/Write

code

Connect

Connect

CONNECT

accompanied

selects

followed

Connect

SEQUENCE

parity

(Page

2)
Interrupt
FF

if

for

controller.

Active

and

if

Reject

FF -permits

indicator.

by a Connect

the

controller

during a Connect

sequence

error.

during

parity

and

FF

error

controller

is

not

further

(A)

is

shown

(Page

Connect.

or

if

set.

operation.

signal

and

the

is

in

..

,

','

1)

not

proper

is

reselected.

(Page

from
tape

shown

Figure

2)

2-3.

+1

psec -enable

+ 1

p,sec -enable

Connect

*Page

code

numbers

Customer

and

Reject

signal.

Engineering

T 3

Set

T 4

If

If

Clear

signal

in

parentheses

tape

handler

conjunction

Selection

proper

signal

no

tape

Reject

Connect

drops

after

refer

Diagrams

tape

handler

handler

the

Manual

Select

FF

with

switch.

is

to

data

channel.

is

selected,

signal

to

FF -allows

data

channel

to

the

3228/3229

(Pub.

II-I

according

setting

(Page

selected,

set

data

channel.

Interrupt

receives

No.

60093700).

to

of

the

4)

set

Reply

(Page

Reject

to

Magnetic

Connect

tape

handler

FF -send

2)
FF

- + 2

perform.

either

Tape

code

in

Equipment

p,

sec

the

Reply

Controller

Reply

send

or

r:tj

1-'.

CTQ.

C

1-1

(D

~

I

I-'

1-1
1-1

n

I

~

0

::J
::J

(D

(J

r+

r:tj
r:tj

(fl

CONTROLLER

CONN

ECT

TRANSMISSION

PARITY

ERR::

~.~

PROPER

CONNECT

CODE*

~~

TI

*

EQUIPMENT

SELECT

SWITCH

XXXB

SELECT

CODE

TAPE

HANDLER

SE

LECT

SWITCH

NO

TAPE

HANDLER

SELECT

SIGNAL

RE

JECT

FF

TAPE

HANDLER

SELECT

FFS

KO-O

KO-I

CLEAR

RELEASE

AND

CON N

ECT

CODE

AXXX

PROPER

CONTROLLER

CONNECT

CODE

KI04

REPLY

KI03

KI05

REJECT

F F

CONNECT

SIGNAL

KI02~

I

KICl5~

II02

T 2

K102~

I

K104~

II03

T3

K103~

I

K104~

1104

T4

~

1-"

O"Q

C

1-1

ro

I:\.:)

I

I:\.:)

()

I-t

0

I-t

::s

I

w

::s

ro

()

ri-

O

"d

ro

1-1

P'

ri-

1-"

0

::s

CONNECT

ENTER

CONNECT

SIGNAL,
12-B IT

CONNECT

CODE,

PARITY

PARITY
SIGNAL

SET

,--

- -

INITIATE
TIMING
CHAIN

DO

TRANS.
PARITY
CHECK

SET

CONNECT

FF

(T

I)

PAR

ITY

ERROR

FF

SET

CONT.

CONNECT
FF

(T2)

LIGHT

DOES

THE

FOLLOWING

EXIST?

I.

TRANSMISSION

PARITY

ERROR

PREVENT

AB.

END

-OF-OPERATION

INT. DURING CONN.

BITS

9,10,

a II

GO

THROUGH

OCTAL

SWITCH

LIGHT X MSN

PARITY

ERROR

INDICATOR

DO

TAPE

EQUIP.

SWITCH a CODE

AGREE?

NO

CODE

AGREE

SET
SELECT

F F

(T3)

NO

CLR.CONT.

CONNECT
FF

(TI)

CLEAR

CONTROLLER

CONN.

FF(TI)

SET
REPLY

FF,

CL.CON

N.

FF

(T4)

REJEC

T

CONTROLLER

SET

REJECT

CLEAR

CONNECT

FF

(TI)

CLEAR

REPLY

FF

INDICATOR

FF,

CL.

CONN.

FF

(T4)

YES

DESIRED

TAPE

UNIT

IS

NOW

CONNECTED

AND

INVERTERS

GATE

THE

FLOW OF

INFORMATION

BETWEEN

THE

TAPE

UNIT

AND

DATA

CHANNEL

VIA

THE

MAG

NET

IC

TA

PE

CON

TROL

L E

R.

REJECT
FF

--

--------

------1

I

I
I

I

__________

--.1

* WHEN

THE

CONTROLLER

STOPS

YES

AND DOES

NOT

ISSU

EAR

EPLY

OR

REJECT,

THE

COMPUTER

ISSUES

AN

INTERNAL

REJECT

AFTER

100fLSEC.

CONNECT

CONNECT

KIOI

K103*

KI05

TI

SIGNALJROl3

TIMING

COSB

COSO

C

IIOI

CIIA

""lS I 9B

10

.-J

~

IE-

0.2

fL

S

EC

I I

~r--------------I------------~

I I

IE--

IfLSEC

I I

CHECK

~

I

PARITY

~--------------------------

IE--

IfLSEC

--']!~

....

I I I

IE;;"'--

I I I

IfL

SEC~

I

I

~

L..-

iE-

__________

o.lfLSEC

.....

_

T2*r102

T3

II03

T4

II04

CONNECT

KIIS/119

CONTROLLER

CONNECT

KilO/III

SELECT
KO-

0/0-1

REPLY
K114/115

REJECT
K112/113

REPLY

SIGNAL*

TO 13

S20B

REJECT

SIGNAL*

TOl4

S23A

FF*

G24

FF

C05

FFs

FF*

CI6

FF*

CI8A

*

*

CIIB

CI2A

CI2B

*

THESE
DEPENDENT

TIMES

FFs

SHOWN ARE

___________________________________________

I

~nL..__

_________

_

{6).

I

I

jE-=

I

tE-

2fLS

IfL

SEC

SCALE

EC

:n=:r-

~

r--------

I

RESELECT a R/W

AND

SIGNALS

ON OTHER FUNCTIONS.

ARE

OPTIMAL.

-

---

ACTIVE

ALSO

Figure

2-

3.

Connect

II-4

Timing

The

controller

the

Connect

or

Write
requests
necessary
this

manual.)

selection)

If

the

Function
(Figures
after

any

Function

receives a 12-

exchange.

operation

(C

= 2)

(Table

controller/tape

The

are

shown

code

2...,5

and 2 -6).

necessary

code

and

signal

SECTION

The

(C

= 0,

4),

2-2).

different

in

Figure

is

illegal,

If

the

processing

to

2.

bit

Function

certain

Each

handler

techniques

2-4.

the

code

delays.

drop.

FUNCTION

Function

code,

tape

selection

operation.

used

controller

is

legal, a Reply

code

XXCD,

motion

The

SELECTION

accompanied

selects

directives

is

recorded

(These

to

set

these

sends

Reply

the

or

the

by a FF

operations

FFs

data

signal

Reject

by a Func"tion

tape

format

(C

= 1),

(which

channel a Reject

is

sent

signal

which

are

to

permits

and

explained

record

the

signal

for a Read

Interrupt

controls

the

signal

data

channel

the

after

the

later

function

in

FORMAT
0000

0001
0002
0003

0004

0005

0006
0040
0041

Release
Binary

Coded
556

Density

200

Density
Clear
800

Density
Clear
Reverse

TABLE

Reverse

Read

2-2.

Read

0020
0021
0022
0023
0024
0025

FUNCTION

INTERRUPT

Ready
Release
End
Release
Abnormal
Release

CODES

TAPE

0010
0011
0012
0013
0014

0015
0016

and

of

MOTION

Not

Ready

Operation

End

of

End

Abnormal

DIRECTIVES

Rewind
Rewind
Backspace
Search
Search
Write
Skip

Busy

and

Not

Operation

of

Operation

End

Unload

Forward
Backward

File

Bad

Busy

of

Operation

Mark

Spot

II-5

FOR

MAT

OX

CODE

FUNCTION

~

~I

I

OX

X2

OX

XI

PARITY

FORMAT

J020

J021

CODED

BINARY

BACKWARD

4X
XI

~REVERSE

4X

~RELEASE

XO

READ

RR

MOTION

CODE
DI04

DI22

FUNCTION

INTERRUPT

CODE

(EVEN)

conE

(ODD)

TYPICAL

(00)

RELEASE
(03)
(04)

(05)

CLEAR

*(06)800

DIRECTIVES

(0)

REWIND JOOO

(II

)

REWIND

(12)

BACKSPACE

(13)

SEARCH

(14)

2X

2X

OF:

556
200

TYPICA L OF:

SEARCH

JOI8/JOI9
DENSITY
DENSITY

J026/J027

SELECT

UNLOAD

FORWARD

BACK

J022/J023*

J024/J025*

SETS

BOTH

WRITE

/JOOI

J002/J003

J004 / J005

WARD

SET

RELEASE

J006/

J008 / J009

J023

AND

CODE
DI04
DI22

ENABLE

FUNCTION

J007

FUNCTION~

J025

I

:j

_T...;,Y.,;..P....;.I..;...C_A,.:;:L_O.:....F_;

(J

5)

WRITE

(16)

SKIP

II

CL

CONTROLLER
CONNECTED

SIGNAL

--;7

FILE

BAD

EARED

______

MARK

SPOT

I

0.2fL

JOIO /

JOI2/JOI3

TERMINATION

BY

SEC

]I

~I

I

_____

JOII

REPLY
REJECT
XMSN

JO

14/

JOI6/JOI7

OF

FF

FF

PARITY

II

__

JOl5

OPERATION

ERROR

(20/21)
(22/23)

(24/25)

TYPICAL
READY
END-0 F-OPER
J030/J031

ABNORMAL
OPERATION/RELEASE

OF;

/RELEASE

END-

ATION

OF-

J028/J029

J032/J033

Figure

/RELEASE

READ/WRITE

ACTIVE

BUSY~

READY

2-4.

Function

II-6

Select

FFs

0.2fL

SEC

~

......

(Jq

~

'"i

ro

l'\:l

I

;.n

~

~

H

::s

H

()

I

c-+

-:]

......

0

::s

::0

ro

'"0

I-'

'<

-

::0

ro

.:........

ro

()

c-+

FORMAT

REPLIES

RELEASE,

BCD/BINARY,

~

REPLY

FF

CLEAR,

OR

BACKWARD

CODE I

IILSEC

I

FUNCTION

SIGNAL

REJECT

FF

DELAYED

O.4ILSEC

REJECT

FF

DENSITY

CODE

REPLY

FF

SATISFY

REPLY

FROM

TAPE

HANDLER

FUNCTION

SIGNAL

DELAYED

0.4ILSEC
200

DENSITY

SELECT

556

DENSITY

SELECT

800

BPI

REPLY

MOTION

DIRECTIVE

REPLIES

MOTION

DIRECTI

VE

FFs

~

REPLY

FF

____

I

IIILILSSEECC

I

FUNCTION

SIGNAL

INTERRUPT

REPLY

ANY

INTERRUPT

CODE

~

REPLY

FF

2X

I

FU

NCT

ION

SIGNAL

DELAYED

OAIL

SEC

END -

OF -RECOR

D

REJ

ECT

FF

REJECT

2X

REJECT

FF

REA

DY

OR

BUSY

REJ

ECT

FF

MOTION

DIRECTI

VE

REWIND

MOTION

DIRECTIVE

FF~

LOAD

POINT

REJECT

FF

REPLY

FF

*

THIS

BLOCK

PREVENTS

A WRONG

DENSITY

SIGNAL

FROM

BEING

ISSUED WHEN

CHANGING

TO

800

BPI.

OX

4X

FUNCTION

SIGNAL

CLEAR

ENABLE

MOTION

ENABLE

MOTION

ENABLE

ENABLE

DIRECTIVE

FORMAT

DIRECTIVE

FORMAT

INTERRUPT

SET

REJECT

SET REPLY

FORMAT

FF

FF

FF

FFS

FF

FF

FF

s

S

______

s

S

I

~Il~

__________________________

CHANGE

TO

800

---------~~

_

I

MOTION

REW I

AT

REJECT

REPLY

DIRECTIVE

NO

SELECT

LOAD

POINT

INTERRUPT

SIGNAL

SIGNAL

Figure

SAME

2-

AS REPLY

6.

Function

II-

FF

8

Select

Timing

05

CODE

CLEAR

TAPE

SELECT

KO-O

HANDLER**

FFs

FUNCTION

00

CODE

FUNCTION

RELEASE

Figure

2-7.

*

** SEE FIGURE

Clear

and

T2

IS

CONNECT

Release

Ko-r

INITIATED

SIGNAL

2~2

BY

II-9

This

section

detailed

is

presented

information

SECTION

may

3.

using

be

found

FUNCTION

only

simplified

in

the

OPERATION

logic

Diagram

drawings

Manual.

(FORMAT)

and

flow

charts.

More

Format

Parity

Function

Mode

Clear

Release

Density

Reverse

02

Read

CODE

OICODE~

MC

Figure

2-8

2-12
2-16

WRITE

FILE

Flow

MARK

Chart

Figure

2-9

2-10
2-11

2-13,2-14,2-15
2-17,2-18

Diagram

BCD

BITS

ODD

CHANNEL
WR

ITE

3,

9,

12

2, 3

2, 3

3,5,7,8,11

3,

5, 11

INDICATOR

6

REGISTER

Page

READ
READ

Figure

READ
BIT 6 :"1"

BIT 6 :"0"

BITS

2-

8.

II

-10

VERTICAL

r-&-~-----,

EVEN

Parity

P051

I.---~

lVlode

READ
READ

PARITY

BIT

6:"0"

BITS

ODD

ERROR

VERTICAL
ERROR

PARITY

INDICATOR

FUNCTION

ENTER

FUNCTION

SIGNAL,
12

-BIT
FUNCTION
CODE,

PARITY

PARITY

-.,;.....;...-.------~

SIGNAL

YES

SET

REPLY FF.

LIGHT

BCD

INDI-

CATOR

ON

CONTROL.

THIS

INDICATOR

STAYS

LIT

UNTIL

BCD/BINARY

FF

IS

CLEARED.

CLEAR

REJECT

FF.

*

INTERNAL

REJECT

BY

COMPUTER

AFTER

100

fL

SEC.

YES

LIGHT

XMSN.
PARITY ERROR
INDICATOR.

CLEAR

REPLY F

F.

YES

SEND

XMSN.

PARITY

ERROR

SIGNAL

TO

DATA

CHANNEL.

SET

PARITY

FORMAT

FF

(CODE

=

0002)

OR

CLEAR

PARITY

FORMAT

FF

(CODE =

0001)

SET

REJECT

FF.

f-rj

1-"

CfQ

~

'"i

([)

N

I

I-'

?

f-I

n

f-I

I

I--'

I-'

([)

N

PJ

'"i

0

'U

([)

'"i

PJ

r+

1-'.

0

::s

FUNCTION

ENTER

FUNCTION
SIGN

AL,

12 -BIT
FUNCTION
CODE,

PARITY

PARITY

----~

SIGNAL

NO

YES

*

INTERNAL

REJECT

BY

COMPUTER

AFTER

100

fLSEC.

SET
CLEAR

FF.

SET

REPLY

FF.

WHEN

THE

GLEAR

FF

SETS,

THE

SELECT

FFS

CLEAR.

THIS

CLEARS

THE

EXISTING

CONNECT

IOU

FOR T HE

TAPE

UNIT.

CLEAR

REJECT

FF.

LIGHT

XMSN.

PARITY

ERROR

INDICATOR.

CLEAR REPLY,
CLEAR

FFS.

YES

SET

SEND

XMSN.

PARITY ERROR
SIGNAL

TO

DATA

CHANNEL.

TRANSLATE
fUNCTION
CODE.

REJECT

FF.

A

~

1-'.

crq

s::

'1

ro

~

I

f-1
f-1

I-i

~

I-i

ro

I

t-J

f-1

ro

W

p:J

Ul

ro

0

'"d

ro

'1

p:J

<+

1-"

0

::s

FUNCTION

ENTER
FUNCTION
SIGNAL,

12

- BIT
FUNCTION
CODE,

PARITY

PARITY
SIGNAL

NO

YES

LIGHT XMSN.
PARITY

ERROR

INDICATOR.

* INTERNAL REJECT

BY

COMPUTER

AFTER

100

f'

SEC.

WHEN

THE

RELEASE

FF

SETS

THE

SELECT

FFS

CLEAR.

THIS'

CLEARS

THE

EXISTING

CON-

NECTION

FOR

THE

TAPE

UNIT.

CLEAR
REJECT

FF.

SET
REPLY

FF.

YES

SEND XMSN.
PARITY

ERROR

SIGNAL

TO

DATA

CHANNEL.

TRANSLATE

FUNCTION

CODE.

SET
REJECT

FF.

NO

CLEAR
RELEASE
CONNECTED
UNIT

FF.

CLEAR
REPLY

FF.

SET

RELEASE

FF

(SELECT

800

BPIl06

CODE

(SELECT

556

BPI)

03

CODE

FUNCTION

~

......

aq

~

t-i

(1)

(SELECT

800

BPI)

06

CODE

tv

I

........

I--'

........

~

(SELECT

200

BPI)

04

CODE

I

I--'

t-J:::>.

tJ

(1)

FUNCTION

::s

00

......

c-+

<:..<

556

J022

J023

J025

TAPE

SELECT

r

TO

TAPE

HANDLER

~

TO TAPE HA

NDLER

TAPE

SELECT

~:OO

556

BPI}

800

BPI

FROM TAPE
HANDLER

fTj

1-'-

O"Q

C

t-S

(!)

[\J

I

I-'

W

H

[\J

H

0

I

0

I-'

CJl

td

~

H

0

'"0

(!)

t-S

PJ

M-

1-'-

0

~

FUNCTION

PARITY

ENTER
FUNCTION
SIGNAL,

12 -BIT
FUNCTION
CODE,

PARITY

SIGNAL

* INTERNAL REJECT BY COMPUTE

RAFTER

100

II-

SEC.

~-

..... SEE FLOW CHARTS FOR

0003,

0006

CODES.

CLEAR

REPLY

FF.

CLEAR
DENSITY

200

BPI

FF.

YES

SET DENSITY

200

BPI

FF.

DROP

200

BPI

SIGNAL

TO

TAPE

UNIT.

CLEAR
REJECT

FF.

SEND

200

BPI

SIGNAL

TO

TAPE

UNIT.

LIGHT XMSN.

PARITY

ERROR

INDICATOR.

YES

NO

NO

SET

SEND

XMSN.

PARITY

ERROR

SIGNAL

TO

DATA

CHANNEL.

TRANSLATE

FUNCTION

CODE.

A

REJECT

FF.

C

SET
REPLY

FF.

A

"0"

IN

BIT POSITION 6

ON

A STATUS

LINE

AND

A

"0"

IN

BIT POSITION 7

ON

A STATUS LINE INDICATES

200

BPJ:

DENSITY

IS

SELECTED. THESE SIGNALS

REMAIN UNTIL

THE DENSITY IS CHANGED.

I-rj

f-'.

(J'Q

~

f-"'J

ro

tv

I

I---'

*'"

1-1

CJl

1-1

CJl

I

OJ

I---'

OJ

IJj

'lj

1-1

0

'\j

ro

.f-"'J

PJ

rt-

f-'.

0

~

ENTER

FUNCTION

s~

FUNCTION

SIGNAL,
12-81T

FUNCTION

CODE,

PARITY

PAR

ITY

SIGNAL

* INTERNAL REJECT

BY

COMPUTER AFTER 100

p.SEC.

r---~

SEE

FLOW CHARTS

FOR

00041,0006

CODES.

CLEAR
REPLY

FF.

CLEAR

DENSITY

~~6

BPI.

FF.

SET DENSITY

~~6

BPI

FF.

DROP

~!56

BPI
SIGNAL'TO
TAPE

UNIT.

CLEAR
REJECT

FF.

SEND

~~6

BPI

SIGNAL

TO

TAPE

UNIT.

LIGHT XMSN.
PARITY

ERROR

INDICATOR.

YES

SEND

XMSN.

PARITY

ERROR

SIGNAL

TO

DATA

CHANNEL.

TRANSLATE
FUNCTION

A

CODE.

SET
REJECT

FF.

SET
REPLY

FF.

5~6

BPI

SIGNAL

("I"

IN

BIT POSITION

6)

IS

AVAILABLE

ON

A STATUS LINE UNTIL A

DIFFERENT DENSITY

IS

CHOSEN.

I-:rj

1-'.

(Jq

~

I-i

CD

l'..J

I

I--'

~

I-i

CO

I-i

0

I

0

I--'

--l

tJj

1::J

I-i

~

CD

I-i

P'

c-+

1-'.

0

;:s

FUNCTION

ENTER

FUNCTION

SIGNAL,

12-

BIT
FUNCTION
CODE,

-.:....P..;,.A:....;,R..;,.I;..,.;T;..,.;Y:...-:.ot

PAR

IT

Y

SIGNAL

* INTERNAL REJECT BY COMPUTER

AFTER

100

f'SEC.

SEE FLOW CHARTS

FOR

0003,0004

CODES.

CLEAR
REPLY

FF.

CLEAR DENSITY

SET DENSITY
M6

BP:I,DENSITY

200

BPX

FFS.

SEND

200

BPI:,

~~

BPI

SIGNALS

~--JIIf

TO

TAPE

UNIT.

200

BPX,

DENSITyl--~

~~6

BPI:

FFS.

DROP

200

BPI,

~~6

BPI

SIGNALS

TO

TAPE

UNIT.

NO

CLEAR
REJECT

FF.

LIGHT

XMSN.

PARITY

ERROR

INDICATOR.

YES

NO

S~T

SEND

XMSN.

PARITY

ERROR

SIGNAL

TO

DATA

~HANNEL.

TRANSLATE
FUNCTION
CODE.

REJECT

FF.

SET
REPLY

FF.

A

A

"I"

IN

BIT

POSITION 7

ON

A STATUS

LINE INDICATES

800

BPX DENSITY IS

SELECTED. THIS SIGNAL

IS

PRESENT

UNTIL

THE DENSITY

IS

CHANGED.

':rj

1-'.

TO

ASSEMBLY/DISASSEMBLY

()"Q

~

CONTROL

I-oj

(D

tv

SEARCH

FORWARD

READ

FF

I

i-'

m

WRITE

TAPE

SELECT

BACKWARD

~

r

REVERSE

I-i

PJ

41

CODE

I-i

I

"d

i-'

ro

co

~

0

40

CODE

rl

1-"

TO

TAPE

0

::::J

READ

MOTION

FF

TA

PE

SELECT

w.

1-"

MC

()"Q

::::J

PJ

WRITE

MOTION

FF

r

FORWARD

I-'

Ul

READ

FF

I-:rj

......

(Tq

~

'i

(1)

tv

I

I-'

--J

I-i

::0

I-i

(1)

I

<:

I-'

(1)

CD

'i

rn

(1)

0

'"'d

(1)

'i

P'

c-+

......

0

::l

FUNCTION

ENTER
FUNCTION
SIGNAL,

12

-8

IT
FUNCTION
CODE,

NO

PARITY

PARITY

------3toI

SIGNAL

A

WHEN

THE

BACKWARD

FF

SETS,

CONDITIONS IN

THE

CONTROL

ARE

ESTABLISHED

SUCH

THAT:

I)

READ AND REVERSE SIGNALS

ARE

SENT

TO

THE

TAPE UNIT

WHEN

THE

READ

OPERATIC

...

COMMENCES, AND

2)A

REVERSE

ASSEMBLY

SIGNAL IS

SENT

TO

THE

DATA

CHANNEL.

*

INTERNAL

REJECT BY COMPUTER

AFTER

100fLSEC.

CLEAR
REJECT

FF.

YES

SET

LIGHT

XMSN.
PARITY ERROR
INDICATOR.

REPLY

FF.

YES

SEND

XMSN.
PARITY ERROR
SIGNAL TO
DATA

CHANNEL.

SET

TRANSLATE
FUNCTION
CODE.

REJECT

FF.

CLEAR
REPLY

FF.

SET BACKWARD

FF.

(THIS

FF

IS ONLY

CLEARED BY A

MC

OR A 0040

FUNCTION

CODE.)

'Ij

1-"

(JQ

C

'"""i

CD

tv

I

I--'

;;0

0

t--'

CD

pJ

I-i

'"""i

I-i

I

~

tv

CD

a

-<

CD

~"l

(f)

CD

0

'd

CD

'"""i

pJ

rt

1-"

0

~

FUNCTION

ENTER
FUNCTION

SIGNAL,
12 -

BIT

FUNCTION

CODE,

_P_A_R_I

T_Y_..t

PAR

IT

Y

SIGNAL

SET

REPLY

FF.

NO

CLEAR
REJECT F F.

*

INTERNAL

REJECT

BY

COMPUTER

AFTER

100,.,.

SEC.

YES

LIGHT XMSN.
PARITY ERROR
INDICATOR.

CLEJ\R

~

~R_E_P_I

___

Y_F

__

F'

__

f

....

~

YES

SEND XMSN.
PARITY

ERROR

SIGNAL

TO

DATA CHANNEL.

TRANSLATE
FUNCTION

CODE.

SET
REJECT

FF.

CLEAR
BACKWARD

FF.

The

purpose

the

Tape
through
nization
Controller
of

the

signal
command
as

WTl,

names

imply.

of

Handler

certain

are

controlled

and

exchange

timing

RTl,

the

or

registers

the

charts.

etc.

)

SECTION

Controller

Data

Channel.

in

by

Data

Channel

and

(For

These

is

the

timing

the

timing

times

4.

INFORMATION

to

modify

The

Controller.

elements

and

the

elements

simplicity,

are

not

and

synchronize

data

modification

Internal

activated

Controller

is

this

section

always

TRANSFER

register

by

exchange

and

the

shown

later

refers

completely

data

as

is

performed

transfers

of

Tape

Handler.

in

this

to

certain

incremental

it

passes

signals

section

by

passing

and

between

The

timing

as

through

synchro-

action

in

the

elements

their

to

the'

R

to

0

This

transfer

sion

parity.

the

transmitted

Data

signal

accept

o

This
two
(DK)
this
of

B1
This
(Page
bit

2-21

if

B042.
the

information

to

Bl

transfer

6-bit

shown

transfer

disassembly.

to

B2

automatic

9).

4,

bit 5 is

converts

the

Negate

The 0 to

Negate

REGISTER

accepts

A

new

parity

from

the

performs

characters.

in

Figure

discards

transfer

The

BCD

complemented

"31"

BCD

12

BCD

signal

TRANSFERS

the

output

parity

Data

(page

bit

bit

(page

Channel

8).

the

The

2-20.

bits 6 through

performs

conversion

to

"71".

Conversion

conversion

is

not

DURING

word

is

1).

disassembly

disassembly

from

generated

The

if

the

transfer
Tape

function,

order

During a Suppress

11

of

the

the

BCD

changes

internal

(bit 4 remains

If

the

Controller

signal

occurs

present,

is

present,

if

the

and a frame

the

for

WRITE

Data

the

12

is

Handler

(Figure

Channel

bits

gated

and

converting

is

controlled

Assembly/Disassembly

output

conversion

unchanged).

is

Controller

word.

BCD

to

selected

BCD

conversion

and

external

The

is

contains

and

of

data

by

the

the

Controller

the

by

the

Table

the

O-to-12

example

to

write

selected

all

zeroes

2-19)

checks
and

the

compared

R-to-0 FF

are

12-bit

output

disassembly

mode

1-1

shows

conversion

BCD;

if

a 1

shown

in

Binary

is

blocked

to

write

(Figure 2-22).

transmis-

with

set

by

ready

word

counter

operation,

examples

appears
in

Figure

format

by

inverter

in

BCD.

the

to

into

in

or

II-21

t-rj

f-'.

crq

~

~

(1)

~

I

~

~

I-t
I-t

tj

I

~

p:J

~

ri-

p:J

t-3

~

p:J

~

r.n

f--+)

(1)

~

DATA

CHANNEL

@

@

T

L

@

-

CHECK

TRANSMISSION

PARITY

H

GENERATE

TRANSMISSION

PARITY

BIT

BCD

PARITY

CONVERSION

GENERATE

CHECK

CHARACTER

~

CONVERSION

LONGITUDINAL
PARITY

ERROR

TAPE

TAPE

SELECT

N

M

TRANSVERSE

N~C

PARITY

ERROR

I

TO

TAPE

FROM

TAPE

WRITE
READ

CONTROL
WRITE/READ

BYTE

LENGTH

ODD

FROM

DATA

CHANNEL

01""";' B :

02~

B:

(WRITE
(WRITE

@

SUPPRESS

WRITE GATE

WT 6

GATE

FF)

GATE

FF)

CIRCLED

AID

FF

(WT
(WT

I)

(6 -BIT

I)

(EVEN)

NUMBERS

+ 0 DO)

(6-

BIT)

INDICATE

~_~

EVEN

TO

WRITE

REGISTER

BYTE

LENGTH

ZOIS

ZOl9

TOGGLE

Figure

2-20.

Disassembly

II-23

Control

31

BI

B2

71

o

~I

BOOO

0

0

~!

BOlO

~

B020

B030

~I

I

I

I 0

0

~I

BOOI

BOil

~I

B021

~I

B031

~I

;,.

!I

~

..

0

0

o

BINARY

NEGATE
CONVERSION

BCD

o

o

o

o

o

o

;;,

--~

..

{ BOlO

--~-:

r 1

--~"l

--:,.1_:

--~,

"I

Figure

8000

L,

----.-------------------....;.1)1,

}~-_r__4_----------------~~1-~_1

B020

:~

____

-4-+_-----------------+_~~

B030

B040

B050

~

I~

........

--I-+--------+-+----------(""\-

:~---4t--+_-------_+__+_-------------:.01~

,~----+--------_+__+_---------~I

1 1 1

B0021

2-

21.

BCD

.....

0--~

..

~1

B003.--

I'

II'

Conversion

:I-~{

B004

~

BOOI

....

,

-~~

BOllI--

1-"'::

B021

:r---~

B031

ll---~

B041

11---";'

B051

Ir--_~

0

o

o

0

o

BI

Figure

NARY
NEGATE

CONVERSION

2-22.

o

O-to-12

BCD

Conversion

II-

24

WT2

WT 2

o

o

WT 3

PREVIOUS

OUTPUT

o

o

(W2)

WT 3

OUTPUT

NEW

OUTPUT

TO

o

I

o

TAPE

(WI)

(A

CHANGE)

(A

CHANGE)

HANDLER

Figure

2-23.

Write

II-25

Register

(One

Channel)

B2

to

WI

This

transfer

The

parity

number

register;
generated;

WI

to

W2

The

Write

each

time

At

the

end

written.

register
Therefore,
equals

an

performs

generator

exists

if

even

if

and

even

register
a 1

is

of a record,

The

check

(W

1).

the

even

BCD

and

and

(W 1 - W 2)

received

character

Each

total

number

number.

the

parity

determines

is

selected,

BCD,

a

Binary,

(Figure

three

FF

that

bit

whether

O.

If

an

a

1.

performs

2-

23

spaces

(longitudinal

must

be

of

bits

in

generation

an

a 1

is

passed

odd

number

the

shows

remain

toggled

each

and

the

even

or

odd

to

the

exists

change-on-ones

one

channel

blank

parity)

channel

to

and

is

clear

(including

then a check

generated

the

change-on-ones

number

seventh

and

of

channel

Binary

Is

is

conversion;

of

the

Write

character

by

clearing

register

the

generates

check

conversion.

exist.

of

the

selected,

WI

register).

the

character)

If

an

WI

a 0

toggles

is

Write

a 1.

odd

is

After
Write

parity.

each

Reply

Vertical

generated

difference

Each

7-bit

(Cl -C2).
the

record

be

clear

(indicating

Longitudinal

M

to

N

This

transfer

new

parity

parity

bit.

REGISTER

7-bit

frame

circuit.

parity

for

each 6 bits

sets

the

frame

Each 1 in

(and

the

Parity

checks

bit

is

generated

Any

difference

TRANSFERS

is

The

Vertical

received

the

record

an

even

Error

REGISTER

the

recorded

Write

is

checkeu

of

data
Parity

by

frame

check

number

FF

vertical

for

sets

DURING

on

Reply

uuriug

and

compared

Error

the

Write

toggles

character)

of

is

set

(page

TRANSFERS

parity

each 6 bits

the

Vertical

tape,

circuit

Lhe

FF

Reply
its

corresponding

Is

in

14).

as

the

of

WRITE

it

is

REPLY

read

checks

IVr-to~N

against

(page

12).

circuit

have

been

each

channel).

DURING

7 -

bit

frame

data

and

Parity

Error

back

to

the

vertical

transfer,

the

recorded

is

sent

FF.

toggled,

READ

is

compared

FF

(Figure

the

Controller

and

when a new

to

the

After

the

If

C1 is

read

from

against

(page

2-1

g)

longitudinal

parity

parity

Read

all

bit.

Toggle
the

C1 register

not

clear,

the

the

12).

by

the

bit

Any

register

frames

should

the

tape.

recorded

is

in

A

II-26

N

to X and N to

This

transfer

BCD

conversion,

into

one

12-bit

As

each

7-bit
register
frames
ter
clear-,

If

the

present,

shown

The
BCD

(Cl -C2).

in

should

the

Controller

any

in

Figure 4-6

12-to-O

signal

C

checks

performs

input

frame

the

record

be

clear

(indicating

Longitudinal

is

selected

time

bit 4 is

conversion

is

not

present,

the

longitudinal

the

word.

is

gated

Each 1 in

(and

the

Parity

to

a 1,

shows

the

occurs

and a frame

12-to-O

out

of

the

frame

record

an

even

Error

Read
bit 5 is

conversion

if

the

parity,

performs

conversion

the N register,

toggles

check

FF

in

character)

number

is

set

BCD

of

(page

format

complemented

of

71

Controller

is

read

and

it

is

its

corresponding

Is

in

14).

and

(bit 4 remains

to

31.

is

selected

as

12

(Figure

the

external

assembles

passed

have

been

each

channel).

the

Negate

to

2-25).

to

toggled,

Read

BCD

two

the

FF.

BCD

I).

in

to

6-bit

Read

After

If

signal

The

BCD,

internal

characters

Toggle

the

Cl

Cl

is

example

the

all

regis-

not

is

not

Negate

the

The

assemble

assembly

function

order

During a Suppress

6-bit

character

zeros.

X

to

Table

H

The H register
that

the

Data

are

assembled.

the

Data

Channel

H

to

T

During
inspected

mission
as

the

this

to

parity

13th

into

1-1

(Holding

Channel

transfer,

determine

uses

bit.

is

controlled

converts

by

two

the

Assembly/Disassembly

Nl,

and

Nl

- N2

shows

examples

register)

has

time

to

The H register

has

accepted

the

transmission

whether

odd

parity,

If

an

odd

number

is

the

an

so

6-bit

characters

assembly

are

transferred

of

assembly.

temporarily

accept

the

cleared

word.

)

parity

even

or

if

an

even

of

bits

exist,

counter

mode

word

when

bit

odd

number

operation,

stores

before

the

is

generated.

number

a 0

is

into

(AK)

to

the

Data

of

of

added.

one

the

12-

new

signal

bits

bits

12-bit

shown

this

transfer

Data

Channel

bit

input

characters

drops

The

is

present.

is

sensed,

in

input

Figure

word

12

word.

2-26.

packs

with

N2

to

assure

from

the

(indicating

bits

of

data

The

a 1

is

added

The

each

all

tape

that

are

trans-

II-27

7----------------------------------------~>

N

BIT

0

rNG~:~Er~.......;,..1

----------------~~I

XI

OR

REGISTER r l

31

X

2

BIT2

BIT31

BIT 4

BIT 5

N021

N031

I

0

~I

r

TO H REGISTER

I

~I

r

I

o

I

o

Figure

2-

24.

BCD

II-28

Conversion

BIT

12

0

o

o

Xi

OR X

REGISTER

:.0

2

-

BIT

BIT

BIT4

BIT

I

~~-----------+------------~

I 0

o

o

2

3

o

o o

o

o

r-----~

o

o

o

TO

H REGISTER

BIT

5

o

Figure 2-25.

12-to-O

II-29

o

Conversion

41

CODE

N ~ XI =

N

~X2=

X ~ H

(REVERSE
(REVERSE

(SUPPRESS

::

!6-8!T)(EVEN)(

SPROCKET

SUPPRESS

READ)(EVEN){RT2)

READ)(ODD)(RT2)(SUPPRESS

A/D)

RT6) + (6-BIT)(Z067){RT

A/D

RT

7

SPROCKET

+(REVERSE

J038

J039

40

CODE

(DELAYED)

READ)

A/O)+(REVERSE

6)

REVERSE READ

REVERSE

AK

ODD

EVEN

(ODD)

(RT

READ

~-+--++

2)

+(SUPPRESS

READ)(EVEN)(RT

EVEN

( NOT

ZERO)

A/D)

2)

FROM TAPE

G)

-'-';;;;";..j

PARITY

N

ERROR

CIRCLED

DETECTION

NUMBERS

Figure

2-26.

X~H

@

INDICATE

Assembly

II-30

H

BYTE

Control

@

CD

PARITY

@

LENGTH.

TO

DATA

CHANNEL

WRITE

OPERATION

SEQUENCE

(FIRST

OUTPUT

WORD)

STEP

1

2a

2b

3

4

5

6

7

EVENT

Write

Write

2

Signal
Signal

O.
prepares
R

First
Write

Signal

Control

to

60

J1,sec

is

occurs

1 J1,sec

to 0 FF

(TO)

Resync

present,

after

the

sets

to

Pas s through

Next

WT

0

Pass

through

FF

after

Write

Write

come

sets

Timing

Timing

set

the

Write

the

Data

Control

channel,

after

Chain

Chain

Set

Write
Send
Tape
Initiate

3. 5 (4.

30

(70)

Write

for

Indicates

Tape

motion

delay

5)

ms

ms

channel

data

a

Motion

transfer

Controller
Clear

+

Reply

O.

1 J1,sec

check

signal
permitting
return

later

R-to-0 FF

(Timing

Set

Write

Chain

Gate

Upper 6 bits

channel

Write
Advance

Clear

+

Set

O.

1 J1,sec

Write

Sprocket

Disassembly

Write

Gate

Lower 6 bits
channel

Write

Advance
Set
Clear
Clear

+

check

O.

Sprocket

Write
Write

1

J1,

sec

Disassembly

character

COMMENT

Handler

initiated

path

delay

if

tape

through

12-

bit

accepts

character

Write

sent

the

Data

with

cleared

running

FF

of

data
FF

Sprocket

Clear

FF

of

data

FF

Sprocket

Resync

Clear

FF

Write

to

set

path

is

at

word

12-

Resync

to

Data

~ignal

a ne'w

pass

set

Counter

FF

Write

pass

set

Counter

counter

FF

FF

Write

and

Forward

Write

from

Load

the

Control

Write

Point

controller

available

bit

word

counter

FF

enable

sets

Channel,

to

drop

12-

bit

word

continuously)

through

(signal

passed

(set

Gate

FF

through

(signal

passed

(clear

Enable

Gate

FF

Motion

prepared

thereby

and

the

DK

the

FF

signals

FF

FF

Write

to

tape)

)

1

Write
to

tape)

DK

1

FF;

)

WRITE

8

9

OPERATION

R-to-O

Write

the
Same

FF

Resync

previous

as

steps 4 through 7 above

SEQUENCE

sets

FF

output

after

clears

the

word

(NOT

from

FIRST

Same

II-31

OR

LAST

as

step 3 above

OUTPUT

WORD)

Rev.

C

WRITE

OPERATION

SEQUENCE

(LAST

OUTPUT

WORD)

STEP

10

11

12

13
14

15

1-6

17

Data

and

not

present

Resync
Pass
Pass
Pass
Pass

+2.6

+1.0

+0. 1 usec

through
through
through
through

(6.2)

usec

EVENT

Vvrite

FF

ms

signals

when

clears

Timing
Timing
Timing
Timing

Write

Chain

Chain
Chain
Chain

R-to-O

Check

Write

Enable
Enable
Enable
Enable

Set

Write
Clear
Set

Write

Send
Set

Write
Clear
Clear

Drop
Initiate

Clear
Drop

Clear

Clear

Enable

FF

not

reset

Character

Data

Lockout
check
check
check
Check

WI

Sprocket

Write
Write

Forward

End

Write

Write

Write

Write

New

character
character
character

Character

Termination I FF

register

Sprocket

signal

Termination

Termination I FF
Motion

signal

of

Record

Data

signal

Termination
Control

Write

COMMENT

Counter

FF

sets

counter
counter
counter

Counter

(generates

FF

to

Tape

II

FF

FF

Clear

Lockout

II

FF

(Y043)

Enable

check

Handler

(F002=

FF

FF

FF

I

II

III

IV

1)

not

cleared

character)

Rev.

C

II-32

WRITE

OPERATION

SEQUENCE

(WRITE

REPLY)

During a Write
acter)
distance
causes

is

read

between

the

Write

STEP

A

B

C

Read

+0.2

Repeat
When

If

not,

operation,

back

to
the
reply

Write

the

to

every

controller

heads

trail

the

EVENT

Sprocket

signal

fJ,sec

steps A and B for

tape

handler

senses

indicate a Longitudinal

frame

to

and

Write

each

an

written

check

the

Read

output

Initiates
Z054/055

C1

Set
Set
Accept

Check
occurs.

lights

frame

End

of

Parity

the

heads

to

C2

Z056/

Write

Vertical

and

written

Record,

Error

on

the

accuracy

in

by 2 ms

Read

sets

transfer

057

Reply

frame

Vertical

Status

(see

tape

(including
of

the

tape

(4

ms).

COMMENT

timing

(Read

Timing

from

tape

Parity

Parity

line

on

tape

check

C1 - -

Read

the

recording.

handler

chain

Toggle

Chain

handler

(if

parity

Error

(bit

10)

(includes

it

Sequence)

the

check

(0. 3

register)

Lockout

in

error

Indicator

is

activated)

check

should

char­The
inches)

FF

C

1

character)

be

all

zeros.

II-33

Rev.

C

WRITE

TIMING

CIRCUITRY

(SHOWN

AT

75

IPS)

(ACTIV E WHEN

RECEIVING A

DENSiTY

SIGNAL

FRO"'"

THE

TAPE

HANDLER)

~

WRITE

PREPARATION

j'

WRITE t FIRST

OUTPUT

WORD)---------------~I

l~~;I.~i~J¥'----------CHECK

CHAR~CTER

GAP

---------------r:----WRITE

(CHECK

CH~RAC==tER)

T;~~~~T6~N

j

12:1

0

rOB->!

b 1

r-

e

O.4l

d

r'21"""1d

I'

7.21'SEe

-----~Id

r-1.2I'S"'1 d 1<-1,-----7.2fL

SEC

--------;o.j

..

I'SEC

fL

SEe

-11--~'~EC

tee

S,,!,SEC

fc-I.OI'SEC

dr--------. ~ d

I}o:-,----

e

~

d

r-----

.

----~I

d

1<--------7

6f'SEC

f

f.sJL-SE<l

l0.a,..sa:

WRITE

SIGNAL

FROM

DAT/l.

CHANNEL

{ROI7}

---..r--------

---

---------------

---------------

WRITE DATA LOCKOUT

FF

WRITE

MOTI

ON

FF

FORWARD

SIGNAL

TO

TAPE

HANDLER

WRITE

ENABLE

SI

GNAL

TO

TAPE

HANDLER

(Z037)

~

(Z021)

---..r--

(D067)

~~6AM

Sci:TNflcHANNEL

(ROIS)

------J:~

~

WRITE

CONTROL

(Z02'3]

---f~

(ZOII)

----

RESYNC

(ZOI3)

(KI15)

(F002)

(D05X)

------------~u___

-------------~

------------,u----

--------------~~

OSCILLATDR

WoeXl

J1

~ULSE

~------------~--___Jf~~~------------------~:~~------------------

DK, ~ DK2

WI

~W;2

B~WI

(KI61)

-1

(KI63)

~

(!143)

(1141)

J1

(1<151)

-.J

(KI53)

~

(K

1!5!5)

----~-----------~~

I

(K

(57)

________

~--------~~L

...,

I.,....c:--=r-

(WOS.]

----------------,-------

(W08S)

----------------;----

{(:g:~t

--------.--------,----

~~~--------------,----

START

SPROCKET (WI03]

-----,~r-----------

WRITE

SPROCKET

FF

(ZOO9}

-----------------'-------

CLEAR

SPROCKET

(WIO'S)

----------------"~

ADVANCE

(WI04)

----

DK2

Ff

(ZOI9)

'END

OF

RECORD

(WIOO]

~----------,---

END

OF

RECORD

(WI071

------,L_Jr----------

STROBE

;2

CHECK CHARACTER

J(ZOQI)

-------------------

COUNTER

ENABLE

FF

i

~

('2003)

GRAY

CODE

COUNTER

I (ZOOS]

-----------------;----

l(ZQO?)

----------------;----

tWQ76)

------------------

('6'098)

----

WRITE

TERMiNATION I FF

{ZO:31}

----

WRrTE

TERMINAl

ION

JI

FF

(Z033)

----

~

,-----

~

~r---------------

~

~r-------------

n--'----

______________________

__

~~---------------------

~r------------'_

____

___

~r------------~

______

_

-----'--------~~

------~------------,~

__________

r------------.L

__________

r-----------~L

L-

___________________________

--J

r

L-

____________________________

~r

,--,--'---------------------------

,__,L

__________________________

__

____

~L

______________________

_

~L-

_________

___

-------,~r----------

-----~L_Jr----------

------~-------------...,~

------~-----------,~

________________

r----L

----------------------------~

_____________

~r__;L

_____

_

______________

Ir--IL-

______

_

L---J.--------------

~,-------------------------

--------~~.------------------

----~L_Jr---------------

_____________

-'----__...,L---

------------------------,~

---

-----------------------,~

____

r

a - 2

TO

50

fL

SEC

b -

DETERMINED

BY

TAPE

SPEED

AND

POSITION

OF

TAPE WITH RESPECT

TO

LOAD

POINT.

e - 0 TO

7,uSEe

DEPENDING

ON

NEXT

WIQ

AFTER

WRITE

RESYNC

FP

SETS.

d -

DETERMINED

BY

SELECTED

DENSITY

e -

END

OF

RECORD

STROBE

POSITION

OF

WRITE

TIMING

CYCLE

f -

DETERMINED

BY

TAPE

SPEED.

---------,L--r

-----~~

--------~

~L-

____________________________

__

~r-----------------

~r------------------------

~L-

______________

___

~I------~--------

~r------------'_

_____

~

________

r------------,~

--

__________

s-------------,L

~~

______________________________

_"r

--------,~r----------------

________

r------------,~

------

_________

~r----L

------

____________

~,__,L_

______

__

------~~r---------

~~~------~f~~----------~:~r---------~;r-...,~---------------------------

__________

~r_____

------,~

_________

~r_____

-----------------.~

~r---------------,~

~r----------------------------,L____

-.Jr-------------------

------------------~f~

Figure

2-27.

Write

Timing

II-35

Rev.

C

B

Enter

Write

_

Signal

Set
Write
Gate

FF

Set

Write

Gate

FF

Transfer

Upper

6

bits

of

Data

Word

to

B

Register

L--

___

---.J

No

Set
R--+O

t---.---r~

FF

Transfer
New

I2-bit

Word

to

o

Register

and

Clear

Check

Character

Counter

Enable

FF

Transfer

Lower

6

bits

of

Data

Word

to

B

Register

Set
Write
Motion

FF

Yes

Send

Write

and

Forward

Signals

to

Tape

Handler

Tape

at

Load

Point?

No

Transfer

Cpper

6

bits

of

Data

Word

to

WI

Re

ister

Transfer

Lower

6

bits

of

Data

Word

to

WI

__

E!?gister

Clear
Reply
and

R--+O

FFs

Set
Sprocket

FF

Send

Sprocket

Signal

and
Upper 6 bits
of

Data

Word

to

Tape

Handler

Set
Sprocket

FF

Send

Sprocket

Signal

and

Lower 6 bits

of

Data

Word

to

Tape

Handler

No

Set
Write
Control

FF

Set

Check
Character
Counter

Enable

FF

and
Clear

DKI

FF

Prepare
Controller
to

Write

Next

Data

Word

Prepare

Controller

L--

____

~for

Write
Termination

Clear

~

Sprocket

FF

Character

Counter

Enable

FFs?

No

Clear
Sprocket
and

Write

Resync

FFs

Set

R

......

O

FF

Transfer

I2-bit

Data

Word

to

o

Register

-,-

Controller

Connected

Abnormal

Interrupt

Write

File

Mark

Skip

Bad

Spot

Lost

Data

Read

Control

Write

Control

Signal

from

Tape

Handler

1.

Write

Enable

>!<>!<

Write

Data

Lockout

Controller

Connected

Lost

Data

End

of

Record

Clear

Write

Resync

B

Figure

2-28.

Flow

Chart:

Write

Prepara-

tion

and

Write

First

Data

Word

Operation

II-37

Rev.

C

Clear

Sprocket

Pulse

(Last

Frame)_

Set

Write

Termination

II

FF?

Clear

Sprocket,

Write

Resync

And

Write

Gate

FFs

End

Of

Record

Strobe

#2

Pulse?

Write

Next

Data

Word

Yes

Check

Character

Gap

----1~

(3

Absent

Frames)

Clear

Write

Termination

I

And

Write

Motion

FFs

Drop

Forward

Signal

To

Tape

Handler

~

____

----I

No

~IE~----------------------

Check

Character

Gap

-----------------------------~~.

(3

Absent

Frames)

Enable

Clear

Wl

Pulse

And

Set

Write

Ter-

mination I FF

Drop

Write

Signal

To

Tape

Handler

Enable

r---~

End

Of

Record

Yes

Pulse

Set
Sprocket
FF

'--

____

No

~------------~

Send

Sprocket

Signal

And

Check

Character

To

Ta e Handler

Clear

Check

Character

Count-

I---~er

Enable

And

Yes

007

FFs.

Drop

Clear

WI

Pulse.

Go

to

Start

Page

II-37

Figure

2-29.

Flow

Chart:

Write

Termination

II-39

Rev.

C

READ

OPERATION

SEQUENCE

(FIRST

TWO

FRAMES)

STEP

1

2

3

4

5

6

7

8

9
10
11
12

13

14
15
16
17
18

Read

signal

+ 1 fJ,sec

received
10

usee

First

+

(set

+

+0.
+0.
+0.2
+

O.

2 fJ,sec

Z054/055)

O.

2

fJ,

5 fJ,sec
2 fJ,sec

fJ,sec

O.

2 fJ,sec

frame

Second

+0.2

fJ,sec

+0.2

fJ,sec

+0.2

fJ,sec

+0.

2 fJ,sec

+0.2

fJ,sec

+0.2

fJ,sec

+0.2

fJ,sec

Data

sec

frame

EVENT

signal

read

initiate

set

Z 0

set

Z058/059

set

Z090/091
clear
clear

read
set

Z054/055

set

Z056/057

set

Z058/059
set

Z090/091
clear
clear
clear

timing

56/

057

Z054/055
Z056/

057

Z054/055
Z056/057
Z058/059

Set

Read
Set
Generate

tape
Clear
Clear
Clear

Data

Set
Read/Write

Sprocket
Read

Forward
motion
End

Motion

Read

FF

Forward

handler

C1 register
Assembly
End

Channel

Read

Control

pulse

FF

clears
and

continues

of

Record)

of

Record

Active

Read

Clear X register
Cl

to

C2

AKI

to

AK2

Read

Data

Lockout

Set

Reply

Set

Begin

N

to

N

to

check

Set

AKI

Sprocket

Cl

to

AKI

Set

Begin

N

to

N

to

Clear

Generate
Transfer

Timing
Record I FF

X2

(6

C1 (7

parity)

pulse

r

C2

to

AK2

Record

Xl

C

1

AKI

Reply

12-bit

bits
bits

COMMENT

FF

and

Counter

ready

to

FF

(E021)

received

signals

(motion

FF

Chain

of

data

to

Read

received

II

FF

signal

word

Read

II

FF

accept

clears

to

Toggle

to

signals

(AK)

data

drop,

stops

Lo

ckout

Assembly

Data

Channel

but

only

FF

register)

register

.

to

tape

at

to

II-41

Rev.

C

READ

OPERATION

SEQUENCE

(NOT

FIRST

TWO

FRAMES)

Same
remain

READ
STEP

19A

20A
21A

22A
23A

24A

25A
26A

as

steps 4 through

set.

OPERATION

Absence
pulse

Check
+0. 2 usec

(set

Z054/055)

+0.2

usec

+0.2

usec

End

of

Tape

Handler

Read
+

1.

and

usec

FF

18

TERMINATION

EVENT

of

sprocket

for 2 1/2

frames

Character

initiate

set

Z056/057

set

Z058/059

Record

Data

clear

signal

signals

Read

above,

read

timing

from

Control

except

SEQUENCE

drop

that

Begin

(END

Set

End

of

Set

Assembly

blocks

further
prevents
to

the

Data

Sprocket

C

to

C

1

N

to

2

C

1

C1 should

longitudinal

Set

End

of

Set

End

of

Send

Data

Clear
Set
Clear

Clear

Read

Read

Begin

End

Record I and

OF

RECORD)

COMMENT

Record I FF

Counter

ass

em

any

more

Channel)':'

Pulse

now

be

all

parity

Record

II

Record

Channel

Motion

Data

Lockout

Record

of

Record I FF

Begin

Enable

bly

counting

data

from

zeros.

error

FF

is

(clear

Disconnect

End

of

Record

F F

F F

FFs

Record

FF

(this
and

being

If

it

is

indicated.

H)

FF

signal

II

thus

passed

not,

FFs

':'

The

timing

read,

word

Rev.

to

C

the

the

chain

AK

Data

is

counter

Channel.

enabled

will

one

more

be

stepped

to

Bits 6 through

time

the

11-42

so

even

11

that

will

if

an

state

and

be z eros

odd

thereby

number

in

this

of

frames

transfer

last

word.

one

were

more

READ

OPERATION

TERMINATION

SEQUENCE

(NOT

AT

END

OF

RECORD)

STEP

19B

20B

21B
22B

23B
24B

25B

26B

No

Read

End

of

lack

of

Check

+0.

2 J.,lsec

(set

Z054/055)

+0.2

+0.

2 J.,lsec

End

of

Tape

+1.

usee

Control

EVENT

or

Record

sprocket

Character

initiate

J.,lsec

Record

Handler

Clear

FF

Data

set
set

signals

sensed

read

timing

Z056/057

Z058/059

signal

Read

by

from

Set

Read

Tape

motion
continue
not

vertical
any

Set

until

transferred

and

remaining

End

of

Sprocket

C1

to

C2

N

to

Cl

C1 should

longitudinal
Set

End

of

Clear
Clear

Clear

Read
Begin

End

COMMENT

Data

Lockout

and

data

the

end

to

the

longitudinal

frames.

Record I FF

pulse

now

be

all

parity

Record

II

Motion

Record

of

Record I FF

transfer
of

zeros.

error

FF

FF

FFs

FF

the

Data

parity

record.

Channel,

If

is

indicated.

to

is

it

the

controller

Data

but

checked

is

not,

is
for

II-43

Rev.

C

REVERSE
The

sequence

Read

with

1)

READ

of

the

following

The

Reverse

Handler

OPERATION

events

occurring
exceptions:

signal

at

step

1.

SEQUENCE

during a Reverse

(rather

than

the

Forward

Read

signal)

is

similar

is

sent

to

those

to

the

Tape

in a normal

2) A

3)

If

a

of

assembled
ter
Vertical
without

4)

Steps 7 and

5)

If

had

mode

out
with

the

to

Reverse

a

blank

Check

data.

was

an

odd

been

of

of

order

zeros.

timing

the

even

Assembly

space

Character

If

no

and

all

zeros)

Parity

regard

14

number

recorded

Reverse

and

The

chain

position,

follows

blank

passed

Error

to

vertical

are

of

Read

signal

and

space

If

the

reversed,

frames

in

Suppress

the

is

not

follows

to

the
first

FF

is

parity

is

attempted,

is

first

passed

Data

cleared

thereby

are

bits 0 through 5 of

zeros

make

are

one

thereby

inserted

additional

permitting

sent

to

frame

the

Channel.

frame

and

recorded

Assembly

the

and

pass.

the

Data

read,

to

the

Data

first

frame

read

was
because
may

have

reversing

on

/Disassembly

the

inverted

last

the

the

Channel

the

Channel

(This

the

the

Check

set

the

the

tape

Data

Channel

Data

This

advances

transfer.

during

first

frame

read,

the

occurs

Check

Character

the

FF.

order

(often

mode),

assembly

Channel

step

is

recognized

as

if

it

were a frame

first

if

the

Check

Character,

of

frame

the

case
and

will

be

word

word

the

will

passed

Assembly

1.

frame

the

is

written

assembly.

if

the
one

be

as

is

Charac-

the

data

Assembly

frame

filled

by

in

having

counter

SUPPRESS
When
are

the

disabled.
before a new
frame

ASSEMBLY

Suppress

is

inserted

This

Data

zeros).

During a Suppress

determine
frame
This

is a programming

is

if

the

always

/DISASSEMBLY

Assembly

forces

Channel

in

bits 0 through 5 of

Assembly

first

frame

treated

/Disassembly
only
word

/Disassembly
read

as

if

consideration.

OPERATION

signal

bits 0 through 5 of

is

accepted.

the

Data

Reverse

is

the

Check

it

were a true

data

II-44

is

present,

each

During

Channel

Read,

Character

frame

SEQUENCE

the

Data

Channel

Read

and

word

there

or

not.

and

passed

AK

and

DK

word

Reverse

Read,

(bits 6 through

is

not

enough

Therefore,

to

the

Data

counters

to

be

each

11

time

the

Channel.

written

are

all

to

first

1E--------

REA D TE

RM I NATION

-----

___

---':0.1

READ

PREPARA

TI

ON

READ

SIGNAL

FROM

DATA

CHANNEL

READ

MOTION

FF

(Z043)~

READ

FF

(D053)~

---,L

____________________

__

READ

AND FORWARD

SIGNALS

TO

TAPE

HANDLER

(0060,

D0671~

---,L

___________

_

CLEAR

CI

DATA

SIGNAL

FROM

DATA

CHANNEL

READ

CONTROL

FF

I

(E0261~

I

(ROI5)

____

-1

(Z045)

----~fjJ

READ

!WRITE

ACTIVE

(E021)

____

_

(END

OF

RECORD)

u

SPROCKET

FROM

TAPE

HANDLER

(D042,D044)

_____

-

~f

~

TIMING

CIRCUIT

{::::::

(Z0591

_____

_

{Z09

II

_____

_

CLEAR

X

AKI

~AK2

CI

~C2

N

~CI

N

-+

XI

N_X2
CLEAR

H

AK I FF

AK2

FF

READ

DATA

LOCKOUT

FF

REPLY

TIMING

CHAIN

LOCKOUT

FF

BEGIN

RECORD

IFF

BEGIN

RECORD

II:

FF

READ

READY

FF

REPLY

FF

END

OF

RECORD I FF

END

OF

RECORD

II:

FF

END

OF

RECORD

DISCONNECT

FF

{E02e,

E0291

______

_

{E0301
(E031)

_____

_

(E042,E0431,

____

_

{E0441

_____

_

(E046)

_____

_

{E05

4,

E055)

____

_

(E057)
(E05e)

____

_

(Z065)

____

_

(Z067)

(Z04

I)

(ZO 5 3)

(Z06

I)

(Z063)

(Z075)

(KI15)

(Z047)

(Z0771~

(Z073)

END

OF RECORD

SIGNAL

TO

DATA

CHANNEL

(TO

15)

I

_____

~r___1~

__________

_

______

~r--1~

________

__

~L_

____________

__

~L_

____________

__

~L_

________________

_

---,

~

---J~----lL

________

__

--.J

-.-J

~

__ __

--1r--1~

__________

_

Jn~

____________

__

~~-----------

~~-------------

__

______

~nL

__________

_

__

____

~n~

__________

__

.J

__

____

~r___1~

_________

_

__

____

~r__1L-

________

__

~~--------------

~~---------------

---,~----------------

~-------------b-~~I~~~-----------b-_J-I~~~-------------b-~-~---

---l

---l

____

~nL

_________

__

______

-1riL

_______

_

------------------~f~

-I----------------------~:;r_____

--I

IE-h

~~-------------------

~-------,--------

L

L

L

L

0.4,.,.SEC

a -

DETERMINED

BY

TAPE

SPEED

b -

DETERMINED

BY

DENSITY

C -

DETERMINED

BY

TAPE

SPEED

AND

DENSITY

d -

DETERMINED

BY

TAPE

SPEED

AND

DENSITY

WHEN

SPROCKET

e -

DETERMINED

BY

TAPE

SPEED

TO

CHECK

CHARACTER

f -

DETERMINED

BY

LENGTH

OF

REMAINING

RECORD,

TAPE

SPEED,

AND

DENSITY

WHEN

SPROCKE

T

9 - I

,.,.SEC

h - 10

jLSEC

*-

2,.,.SEC

FOR

606,607

Figure

2-30.

Read

Timing

II-45

Rev.

C

Prepare

To

L..--=--=---_~

Terminate
.Read

Oper§.tion

***Conditions
Satisfactory

To

Transfer

12-Bit

Data

Word

To

Data

Channel?

1.-

_____

--1

No

1.

5

(800)

3.5

(556)

12

(200)

Send

Reply

Signal

And

12-Bit

Data

Word

To

Data

Channel,

Clear

Bead

Ready

FF

Clear
Reply

Timing

Chain

Lockout

FF

Clear

p,eply

Timing

Chain

Lockout

FF

Transf

er

C 1

~2

And

AKI

~AK2.

Set

Begin

Record

II

FF.

Prepare

To

Read

Next

12-Bit

Data

Word

Prepare

To

'--_.=J..><-._'"

Terminate

Read

Operation

Transfer

2nd

Data

Word

To

Xl

and

C

Registers

Controller

Connected

Abnormal

Interrupt

Lost

Data

Read

Control

Write

Control

Write

Motion

Signals

from

Tape

Handler

1.

Ready

2.

Busy

Clear X Register,
Transfer

Cl->C2,

Transfer

AKI-AK2,

Clear

Read

Data

Lockout

FF,

and

Drop

Clear

H

Set

Reply

Timing

Chain

Lockout

And

Begin

Record

I

FFs

Transfer

Data

Word

To

X

2

And

Cl

Register

Transfer

12-Bit

Data

Word

From X to

H

Register

**

Read/Write

Active

Lost

Data

Reply

Timing

Chain

Lockout

***

B

Controller

Connected

Data

Signal

Lost

Data

Figure

2-31.

Flow

Chart:

Read

Prepara-

tion

and

Read

First

Data

Word

Operation

II-47

Rev.

C

Data

And

Set

Read

Data

Lockout

FF,

Clear

Reply

FF,

and

Clear H Register

Read

Signals

Drop

Before

End

Of

Record

Continue
Normal

Read

Operation

**Conditions

Satisfactory

To

Enable

Timing

Circuitry?

End

Of

Sprocket

Signals

Arrive

Until

End

Of

Record

Is

Rea-

ched.

No

Data

Transfer

During

This

Tim

Yes

Clear X Register
Transfer

Cl ~ C2

And

Transfer

AKl ~ AK2

Clear
Reply

Timing

Chain

Lockout

FF

Transfer

Check
Character
Word

To

Cl

And

X2

Registers

Set

Reply

Timing

Chain

Lockout

FF

Clear

Record

Signal

Set

From

Tape

.....

Y-e-s~End

Of

Recordt------------r--~

Handler?

~I=I~F~F

______

~

Read

Motion

t--"T"'""""~

FF?

*

Reply

Timing

Chain

Lockout
Sprocket
Begin

Record

I

Plus

the

following:

1.

Begin

Record

II

2.

Write

3.

Read

forward

Clear
Reply

Timing

Chain

Lockout

FF

**

Read/Write

active

Lost

Data

Reply

Timing

Chain

Lockout

No

*Conditions
Satisfactory

To

Yes

Set

Set

End

Of

Record I FF?

End

Of

Record

IFF

Disable

AK

Clear

Begin

Record

I,

Begin

Record

II,

and

End

Of

Record

FFs

No

Clear

Read/Write

Active

No

Check

Character

Sprocket

Signal

From

Tape

Handler?

Figure

2-32.

Flow

Chart:

Read

Termina-

tion

(Not

End

of

Record)

and

Read

Nonstop

Operation

II-49

Rev.

C

Read

NewSprocket

No

Signal

from

Tape

Handler?

Last

Frame

of

Record

Yes

Previous

Read

Frame

Not

Last

Frame

~:(~:(Conditions

Satisfactory

to

Enable

Timing

Circuitry?

End

of

Set

Clear

IIXII

Register,

Transfer

CI-C2,

and

Transfer

AKI-AK2

Clear
"H"

Register

Set

Clear
Reply

Timing

Chain

Lockout

FF

Transfer

Check

Character

Word

to

Cl

and

K2

Send

End

of

Record

Signal

to

Data

Channel

Read
Signal
Drops

No

Clear

~:(Conditions

Satisfactory

to

Set

End

of

Record I FF

No

Set
Read

Data

Lockout

FF

Yes

Disable

AK
Counter
Circuit

Set

t----e-~

End

of

Record

IFF

Record

Signal

Yes

from

Tape

End

of

Record

II

FF

End

of

Record

Disconnect

t---e-:;JotEnd

of

Record

t-----------,,;~

Handler?

o

FF

Clear
Reply

Timing

Chain

Lo

ckout

FF

,!,

Reply

Timing

Chain

Lockout

Sprocket

Begin

Record

I

Plus

the

following:

1.

Begin

Record

II

2.

Write

3.

Read

Forward

~:(~:<

Read/Write

Active

Lost

Data

Disconnect

FF

Reply

Timing

Chain

Lockout

No

New

Data

&

Read

Signals

No

Check

Character

Sprocket

Signal

from

Tape

Handler?

Clear

No

Timing
Circuitry

Sto

s

Clear

Begin

Record

I,

Begin

Record

II,

and

End

of

Record

I

FFs.

Read

Controll----+-----;~

FF?

Clear
Read/vVrite
Active

Figure

2-33.

Flow

Chart:

Read

Termina-

tion

(End

of

Record)

II-51

Rev.

C

The

Write

30

ms

the

tape

FF

Skip

Motion

(70

to

sets

and a Write

SECTION

Bad

Spot

FFs

FF

(Page

ms)

delay

path

move 6 inches).

termination

5.

FUNCTION

(Figure

8)

is

to

set

2-34

set

the

When

OPERATION

SKIP

and

as

if

the

Write

the

Write

procedure

BAD

Page

Write

Control

ensues.

MOTION

SPOT

3)

simulate a partial

signal

Control

FF

were

is

FF

DIRECTIVES

present
initiated
is

set,

Write

(this

Write

operation.

(Figure

allows

Termination

2-34).

time

The

The

for

I

The

Write

automatically

Write

30

the

as
it
and

The

Motion

ms

(70

tape

to

if

the

Data

were a frame

then

writing

Search

operation.

signal
sent
Tape
File

(Figure 2-36).

to

the

Handler

Mark

File

ms)

Mark

writes

FF

delay

FFs

one

(Page

path

move 6 inches).

signal

Forward
The

of

data.

the

Read

were

check

To

FF

The

Tape

is

Handler.

so

that

sensed.

the

This

(Figure

frame

8)

is

set

to

set

When

present.

The

character)

SEARCH

File

Mark

(Page

Forward
The

End

of

permits

WRITE

2-35

(17

as

the

the

normal

FORWARD

5)

is

Search

Record

BCD)
if

the

Write

Write

The

End

then

FF

set

signal,

tape

FILE

and

Page

and

Write

Control

File

of

follows.

(Figure

as

if

the

signal

signal

motion

MARK

3)

its

check

signal

Control

Mark

Record

TO

FILE

2-36

the

Read

Read

modifies

is

returned

to

simulate a Write

character

were

present

FF

is

initiated

FF

is

set,

is

then

sent

procedure

MARK

and

Page

Motion

signal,

the

continue

End
to

over

3)
FF

and

of

the

operation

on

the

tape.

(this
the
to

(Figure

R-to-O

the

WI

allows

2-35).

time

FF

register

(leaving 3 blank

simulates

were

the

Search

Record

Controller

any

End

set

circuit

of

a

partial

by

signal

only

Record

which

The

is

set

frames

the

Read

in
when

The

for

as

Read

are

the

gaps.

if

a

SEARCH

This

operation

Mark

(Figure

The

The

FF

2-37).

Backspace

Read

(Figure

FF

(Page

is

identical
2-37

FF

and

(Figure

5)

is

set

to

Search

Page

2-38

as

BACKWARD

Forward

3)

initiates

BACKSPACE

and

Page

if

the

Read

TO

FILE

except

reverse,

3)

simulates a partial

Motion

FF

that

rather

were

II-53

MARK

the

set

Search

than

Reverse

by

Backward

forward,

the

Read

tape

Read

signal

to

File

motion

operation.

Rev.

C

(Figure

Tape

The

Motion

Rewind

signal

the

nearest
different
and

terminates

New

operation

2-38).

(Figure

Tape

The

continues

FF

(Figure

2-

3 9).

Load

Point.

Handler.

tape

is

then

Reverse

until

2-39

This

The
When

motion,

possible.

signal

the

Tape

and

Page

signal

Controller

the

it

signals

and

the

Handler

REWIND

3)

instructs

Tape

Handler

the

Read

senses

sends

the

is

free

Controller

signal

the

Tape

to

assume

that

are

an

End

connected

Handler

is

rewinding

that

it

sent

of

Tape

to

some

is

to

the

Record.

Handler

rewind

other

senses

Ready

Tape

at

high

operation

the

and

at

Handler.

the

Rewind

speed

with

Load

Load

Point.

to
a

Point

The

Rewind

Rewind

at

high

some

that

is

Unload

speed

other

selected

Unload

signal

until

operation

to

Rewind

FF

(Figure

(Figure

the

tape

is

with a different

Unload

REWIND

2-40

and

2-40).

This

completely

Tape

is

impossible

UNLOAD

Page

signal

off

the

Handler.

3)

sends

reel.

until

the

instructs

The

Operation

the

connected

the

Controller

tape

is

Tape

with
manually

Tape

Handler

is

free

the

Tape

reloaded.

Handler

to

rewind

to

Handler

the

assume

II-54

f-Ij

1-'-

(1'q

~

~

(1)

I.'\:)

I

W

fI:::..

H
H

I

CJl

(f).

CJl

:;.:;-'

1-'-

'"d

td

pJ

0..

(f).

'"d

0

rt-

FUNCT

ION

PARITY

ENTER
FUNCTION
SIGNAL,

12 -

BIT

FUNCTION

CODE,

PARITY

SIGNAL

SET

WRITE

MOTION

FF.

NO

SEND

FORWARD,

WRITE SIGNALS

TO

TAPE

UNIT.

TAPE

MOTION COMMENCES.

WRITE CONTROL
FF

SETS

30

MS

(70MS)AFTER

WRITE

MOTION

FF,

LIGHT WRITE
INDICATOR

CLEAR
REJECT

FF.

* INTERNAL REJECT

BY

COMPUTER

AFTER 100

JL

SEC.

LIGHT XMSN.

PARITY

ERROR

INDICATOR.

SEND

XMSN_

PARITY

ERROR

SIGNAL

TO

DATA

CHANNEL.

SET
REJECT

FF.

YES

TRANSLATE

FUNCTION

CODE.

BUSY

SIGNAL (BIT

I)

WILL

BE

AVAILABLE

ON

STATUS LINE

DURING

AND 4 MS

AFTER TAPE MOTION.

SET

REPLY
FF.

WRITE
TERMINATION

I---~

I FF

SETS.

WRITE
TERMINATION

II

FF SETS

AFTER

2.6MS.

(5.2

MS)

CLEAR

J

016

/0

17

AFTER

O.lfLSEC

NO

~.W1fITE

CONTROLS" AND" TAPE YES

SET SKIP

UNIT

READY.

BUSY

"AND"

WRITE ENABLE

PRESENT?

CLEAR

SKIP

BAD

CLEAR

WRITE

TERMINATION

I,

WRITE

MOTION

FFS.

BAD SPOT,
J016/017

FFS

WRITE ENABLE
(BIT

2)

PRESENT

ON

STATUS

LINE.

CLEAR

WRITE

CONTROL

FF

CLEAR

WRITE

TERMINATION

II

FF AFTER O.IJLSEC.

DROP

FORWARD,

SIGNAL

DROP

WRITE

SIG

NAL

TO

TAPE

UNIT

TO

TAPE

UNIT.

TAPE MOTION HALTS.
TAPE

HAS

NOW

BEEN

MOVED

AND

ERASED

e 6

INCHES

IN A

FORWARD

DIRECTION.

I-rj

1-"

CTQ

r::

~

CD

I'.:)

I

W

~

r-t
r-t

~

I

CJl

~

m

1-'.

rl-

CD

I-rj

1-"

~

CD

~

Pl

~

~

PAR

ITY

ENTER
FUNCTION
SIGNAL,

12 -BIT
FUNCTION
CODE,

PARITY
SIGNAL

SET WRITE
MOTION

FF.

NO

SEND FORWARD,
WRITE SIGNALS

TO

TAPE

UNIT.

TAPE

MOTION COMMENCES.

LIGHT WRITE
INDICATOR

CLEAR
REJECT

FF.

YES

LIGHT XMSN.
PARITY

ERROR

INDICATOR.

TRANSLATE
FUNCTION
CODE.

BUSY

SIGNAL

(BIT

I)

WILL

BE

AVAILABLE

ON

STATUS LINE

DURING

AND 4 MS

AFTER

TAPE MOTION.

SET

SEND XMSN.
PARITY

ERROR

SIGNAL

TO

REJECT

FF.

DATA

CHANNEL.

NO

~.~

CONTROLS

"AND"

TAPE YES

UNIT

READY

• BUSY

"AND"

WRITE ENABLE

PRESENT?

CLEAR
WRITE EF
MARK

FF.

SET WRITE

EF

MARK,

J014/015

FFS.

WRITE

ENABLE

(BIT

2)

PRESENT

ON

STATUS LINE.

*

INTERNAL

REJECT BY COMPUTER AFTER 100,.,.

SEC.

SEE

WRITE

SEQUENCE

~

.......

(TQ

~

.,

CD

I:\:)

I

CAl

::n

w.

CD

pJ

.,

1-1

(')

1-1

::r'

I

CJl

~

-l

0

.,

~

pJ

.,

Q..

<"+

0

~

.......

t-'

CD

~

pJ

.,

~

A

FUNCTION

ENTER
FUNCTION
SIGNAL.

12-BIT

FUNCTION
CODE

PARITY

PARITY
SIGNAL

SEND

READ,

FORWARD,

SEARCH

END

OF

FILE SIGNALS

TO

TAPE

UNIT.

NO

TAPE UNIT
S

TARTS

SEARCH

OPERATION.

CLEAR

REJECT

FF.

* INTERNAL REJECT

BY

COMPUTER AFTER 100

JL

SEC.

YES

LIGHT XMSN.
PARITY

ERROR

INDICATOR.

TRANSLATE
FUNCTION
CODE.

BUSY SIGNAL

(BIT

I)

WILL

BE

AVAILABLE

ON

STATUS LINE

DURING

AND 4 MS

SEND

XMSN.

PARITY

ERROR
SIGNAL TO
DATA CHANNEL.

SET
REJECT

FF.

NO

Am.WRIT-£

CONTROLS

SET

SEARCH

"AND" TAPE UNIT

EF

FORWARD

READY-BUSY ?

FF.

CLEAR READ FF ;

AFTER TAPE

MOTION

•

DROP

READ,

FORWARD,

SEARCH

END

OF

FILE

SIGNALS

TO

TAPE

UNIT.

SET

REPLY

FF

TAPE

MOTION
CONTINUES UNTIL
END

OF

FILE
MARKER IS
DETECTED.

NO

CLEAR REPLY,
SEARCH

EF

FORWARD

FFS.

ENO

OF

FILE SIGNAL

(BIT

3)

APPEARS

OM

STATUS

LINE

WHEN

Ef

MARK

IS

DETECTED.
THIS SIGNAL REMAINS UNTIL
A

NEW

OPERATION

INVOLVING

TAPE MOTION

IS

INITIATED.

~

1-'.

(J'Q

C

f-o$

(1)

['V

I

VJ

-J

rn

(1)

PJ

f-o$

(')

f-4

::r'

f-4

I

to

CJl

PJ

00

(')

~

~

PJ

f-o$

0...

ri-

O

~

1-'.

I-'

(1)

~

PJ

f-o$

~

FUNCTION

PAR

ITY

A

ENTER
FUNCTION

SIGNAL,

12

-BIT
FUNCTION
CODE,

PA R

ITY

SIGNAL

SEND READ,REVERSE,
SEARCH

END

OF

FILE

SIGNALS

TO

TAPE

UNIT.

NO

TAPE

UNIT

STARTS

SEAR:H

OPERATION.

*

INTERNAL

REJECT

BY COMPUTER

AFTER

100

fL

SEC.

CLEAR

REJECT

FF.

LIGHT

XMSN

PARITY

ERROR

INDICATOR.

SEND XMSN

PARITY ERROR

SIGNAL

TO

DATA CHANNEL.

SET

REJECT

F.F.

TRANSLATE
FUNCTION
CODE.

BUSY

SIGNAL

(BIT

I)

WILL

BE AVAILABLE

ON

STATUS

LINE
DURING AND 4 MS
AFTER

TAPE MOTION

SET

REPLY

F.F.

TAPE MOTION
CONTINUES

UNTIL

END

OF

FILE

MARKER

IS

DETECTED.

NO

READ·WRITE

CONTROLS

"AND"

TAPE

UNIT

READY.BUSY?

SET SEARCH

EF.

BACKWARD

F.

F.

CLEAR

READ

F.

F

~

DROP

READ,REVERSE,

SEARCH

END

OF

FILE

SIGNALS

TO

TAPE

UNIT.

CLEAR

REPLY,

SEARCH

EF

BACKWARD

FFS.

END

OF

FILE

SIGNAL

(BIT

3)

APPEARS

ON

STATUS

LINE

WHEN EF MARK IS DETECTED.

THIS

SIGNAL

REMAINS

UNTIL

A

NEW

OPERATION INVOLVING TAPE

MOTION

IS

IN

ITIATED.

f-:rj

.......

(J'Q

~

I-i

(l)

~

I

w

H

?J

A

H

I

CJl

CD

td

P'

()

~

Ul

'0

P'

()

(l)

FUNCTION

ERROR

FUNCTION

LIGHT

XMSN.

PARITY

ERR

INDICATOR.

SEND

XMSN.

PARITY

ERROR

SIGNAL

TO

DATA

CHANNEL.

PARITY

SIGNAL,

12

-BIT
FUNCTION
CODE,

PARITY

SIGNAL

SET

READ

F.F.

SEND REVERS
READ

SIGNAL

TO

TAPE UNIT.

NO

NO

TAPE

UNIT

STARTS

YES

TRANSLATE

FUNCTION
CODE.

BUSY SIGNAL

(BIT

I)

WILL

BE

AVAILABLE

ON

STATUS

LINE

DURING AND 4 MS

AFTER

TAPE

MOTION

NO

READ.iiITTE

CONTROLS YES

"AND"TAPE

UNIT

READY-BUSY

~

CLEAR

REPLY,

BACKSPACE

F.F. S.

BACKSPACE

OPERATION.

TAPE

WILL

BE

**

BACKSPACED ONE
RECORD

LENGTH

OR

TO L.P. IF THERE ARE

NO

INTERIM

RECORDS.

CLEAR

REJECT

F.F.

*

INTERNAL

REJECT BY COMPUTER

AFTER

100

fLSEC.

**

IF

THE

BACKWARD

FF

(JX38/X39)IS

SET,

TAPE

IS

MOVED

IN A FORWARD

DIRECTION.

SET

REJECT

F.F.

SET

BACKSPACE

F.

F.

CLEAR

READ

F.F;

DROP

REVERSE,

READ SIGNALS

TO

TAPE

UNIT.

r-rj

.....,.

{TQ

~

~

([)

[\,J

I-t

I

I-t

W

I

~

OJ

0

~

([)

~

.....,.

::s

0..

FUNCTION

ENTER

FUNCTION

LIGHT XMSN.

SEND

XMSN.

SIGNAL,

PARITY

ERROR

PARITY

ERROR

SET

12 -BIT

INDICATOR.

SIGNAL

TO

REJECT

FF.

DATA

CHANNEL.

FUNCTION

NO

YES

CODE,

TRANSLATE

wrAi5

• imi'Fl

CON T ROLS

SET

PA

RITY

PARITY

FUNCTION

"AND"

TAPE UNIT

SIGNAL

CODE

READY·

BUSY

?

REWIND

FF.

* INTERNAL REJECT

BY

COMPUTER AFTER 100,..,. SEC.

YES

SET

REPLY

FF.

L.

P. SIGNAL

ON

STATUS

LINE.

SEND

REWIND

SIGNAL

TO

TAPE

UNIT.

CLEAR
REJECT

FF

TAPE UNIT
STARTS
RE¥nNDING

SET REPLY
FF,

DROP

REWIND

SIGNAL

TO

TAPE

UNIT.

TAPE UNIT WILL
REWIND TO

LOAD

POINT

AND

STOP.

LOAD
POINT SIGNAL APPEARS
ON

STATUS LINE

WHEN

OPERATION ENDS.

BUSY

SIGNAL

(BIT

I)

AVAILABLE

ON

STATU

LINE

DURING

AND

4

MS

AFTER

TAPE

MOTION

LOAD

POINT

SIGNAL

DROPS

WHEN

TAPE

MOT10N

STARTS

FOR A NEW

OPERATION.

J-:rj

1-"

(J'q

~

'"i

(1)

t-.:>

I

f-i:::..

0

1-1
1-1

I

~

m

I-'

(1)

:a

1-"

::s

0..

c::

::s

I-'

0

III

0..

ENTER

FUNCTION

FUNCTION
SIGNAL,

12 -BIT
FUNCTION

CODE,

--,-P_A~R.;....I_T_Y_;>1

PA R

IT

Y

SIGNAL

SEND REWIND

UN LOAD SIGNAL
TO

TAPE

UNIT

NO

*

INTERNAL

REJECT BY COMPUTER

AFTER

100

fLSEC.

NO

CLEAR
REJECT

FF

YES

LIGHT

XMSN

PARITY

ERROR

INDICATOR

SEND

XMSN

PARITY

ERROR

SIGNAL

TO

DATA

CHANNEL

NO

TRANSLATE
FUNCTION

CODE

READ· WRITE CONTROLS

"AND"

TAPE

UNIT

READY.

BUSY?

TAPE

UNIT

WILL

REWIND

PAST

L.P.

AND STOP.

ALL

FURTHER

OPERATIONS

ON

THIS

TAPE

ARE LOCKED OUT.

SET

REPLY

FF

BUSY

SIGNAL

(BIT

I)

AVAILABLE

ON

STATUS

LINE

DURING

AND

4MS

AFTER

TAPE

MOTION

DROP

REWIND
UNLOAD SIGNAL
TO

TAPE

UNIT

CLEAR
REPLY, REWIND

t---

.......

UNLOAD

FFS

SET
REJECT

FF.

SECTION

6.

PROGRAM

CONVENIENCES

Three

signal

which

sets
to

determine

Condition

on

Abnormal

Inte

rrupt

If

the

Interrupt

Busy

ler.

the

signal

Interrupt

The

controller

Interrupt

If

the

Interrupt

ler

receives

(Figure

of

conditions

the

data

channel.

what

FFs

are:

End

of

on

Ready

on

are

received

signal

Interrupt

or

if

all

on

End

of

on

the

End

2 -

43). J 040/041

in

conditions
Interrupt
Operation.

Ready

to

the

FF

remains

Interrupt

Operation

End

of

of

Record

INTERRUPT

the

tape

Function

on

FF

is

set,

from

the

data

channel

Condition

Operation

signal

is

set

by a pulse

handler

codes

are

to

Ready,

Figure

the

tape

set

until a new

FF

from

FUNCTION
or

set

generate

Interrupt

2-41

Interrupt

handler

and

lights

FFs

are

is

set,

the

generated

controller

or

clear

the

on

shows

FF

(Figure

the

2X

cleared.

the

tape

the

Interrupt.

End

how

they

is

set

2-42).

Interrupt

Function

Interrupt

handler

when

may

generate

Interrupt

of

Operation,

are

if

a

indicator

code

FF

while

the

Channel

The

set

Ready
The

is

received

is

set

J040/041

an

Condition

three

Interrupt

and

and

cleared.

signal

Interrupt

on

when

Busy

Interrupt

FFs

Interrupt

and a Not

FF

the

control-

by

the

the

control-

is

set

signal

sends

Interrupt

If

the

Interrupt

any

of

If

the

Interrupt

initiated

The

Interrupt

the

tape

Rev.

C

on

Abnormal

the

following

Lost
Longitudinal

Vertical

Tape
End

of

End

of

until

handler

on

data

at

File
Tape

FF

this

FF

Ready

Load

End

Abnormal

conditions

parity

parity

Point

detected

is

set

FF

is

can

also

signal

of

Operation

End

sensed

error

error

during a Search

by

any

of

cleared.

be

set

drops

of

Operation

the

by

the
at

at

the

above

Interrupt

an

improper

II-62

FF

is

End

of

Record

conditions,

on

time.

set,

the

(Figure

no

Abnormal

Interrupt

new

tape

End

FF

2-44):

motion

of

Operation

will

can

be

be

FF

set

by

if

~

1-'.

aq

~

'"i

(D

~

I

H::>-

I---"

t-I

t-I

t-I

::s

I

ri-

A

(J)

(D

CAl

'"i
'"i

~

'U

ri-

ll'

::s

Q..

U1

(D

f-l

(D
()

ri-

B

FUNCTION

ENTER

FUNCTION

SIGNAL,
12

-BIT
FUNCTION
CODE,

PA

R I

TY

PARITY
SIGNAL

SET

ONE

OF

THE FOLLOWING

FFS:

I.) INTERRUPT

ON

READY AND NOT BUSY.

2.) INTERRUPT

ON

END

OF

OPERATION.

3.) INTERRUPT

ON

ABNORMAL END

OF

OPe

CLEAR INTERRUPT

ACTIVE

FF.

IF

SET.

CLEAR

ONE

OF THE FOLLOWING

FFS:

NO

I.) INTERRUPT

ON

READY AND NOT BUSY.

1-------

....

2.)lNTERRUPT

ON

END

OF

OPERATION.

3.)INTERRUPT

ON

ABNORMAL END

OF

OP.

NO

YES

DROP
INTERRUPT
SIGNAL

TO

LIGHT XMSN.

SEND

XMSN.

PARITY ERROR

SIGNAL TO

PARITY

ERROR

.......

- ......

INDICATOR.

YES

NO

SEND INTERRUPT
SIGNAL TO

DATA

CHANNEL.

TRANSLATE
FUNCTION
CODE.

DATA

CHANNEL.

WAIT

FOR
COMPUTER
TO PROCESS
INTERRUPT.

LIGHT
INTERRUPT

INDICATOR

ON

CONTROL

X.

*

INTERNAL

REJECT

BY COMPUTER

AFTER

100

,.,.SEC •

NO

SET

REPLY

FF.

NO

CLEAR
REPLY

FF.

CLEAR
INTERRUPT

ACTIVE

FF.

DATA

CHANNEL.

INTERRUPT
ON

READY

J028

READY

BUsY

INTERRUPT

J034

I

NTERRUPT

AND

INDICATOR

SIGNAL

INTERRUPT

END -

Of

I

J029

ON

-OPERATION

J030

~----------------------------~

I

2X

I

NTERRUPT
INTERRUPT
INTERRUPT

Figure

6-2.

ON

READY

ON

END-Of-

ON

ABNORMAL

Interrupt

OPERATION

END-Of-OPERATION

on

Ready

END

Of

RECORD

H

INTERRUPT

J034

~

I -

I I I NDICA

~

INTERRUPT
SIGNAL

AND

TOR

CHANN

EL

BUSY - .......

~

READ
READ

WRITE CONTROL
WRITE

WRITE MOTION
WRITE

READ

READ

CONTROL

NONSTOP

OR

NONSTOP

OR

CONTROL

OR
MOTION

CONTROL

Figure

2-43.

SEC

O.lfL

Interrupt

II-64

on

End

INTERRUPT
INTERRUPT

of

Operation

ON

ON

END

-Of-OPERATION

AB

..

END-Of-OPERATION

INTERRUPT

END-OF-OPERATION

J032

J033

ON

AB.

READY
RELEASE
CONNECT

PULSE

[}----------+----,

END

-OF-

RECORD

AND

LOST
LONG.
VERTICA L PARITY
FILE
END-OF-TAPE

LOAD

DATA

OR

PAR

OR

OR

MARK

OR

OR

POINT

ITY

ERROR

DURING

E R

RO

SEARCH

2X

R

INTERRUPT
INTERRUPT
INTERRUPT

INTERRUPT

J034

ON

READY
ON
ON

END-

OF-0 PERATION

ABNORMAL

BLOCK

NEW

INTERRUPT
AND

INDICATOR

END-OF-OPERATION

SIGNAL

MOTION

Various

computer

conditions

by

using

during a program.

The

(Page
vated.
at

Load

status

1).

For

Point,

Bit

lines

If

example,

Bit

Bit
Bit
Bit
Bit

Bit
Bit
Bit
Bit

any

bit 4 status

0

1
1
1
1
1

2
3
4

5

Figure

existing

the

are
of

the

2-44.

in

eleven

enabled

status

when

predetermined

if

the

Controller

line

Tape
Tape
Tape
Tape
Tape

Tape

Channel
Tape
Tape
Tape
Tape

Interrupt

the

Controller

lines.

the

(Tape

Handler
Handler
Handler
Handler
Handler
Handler

Interrupt
Handler
Handler
Handler
Handler

on

Abnormal

STATUS

and

A

Controller
conditions

is

connected

Handler

Ready
Ready
Ready

Ready
Ready
Ready

Write

at

File

at

Load

at

End

the

status

is

exist,

at

Load

and
and
and
and
and

Enable

Mark

of

End

Tape

inspection

connected

the

and

the

Point)

Busy
Controller

Controller
Controller
Channel

Point

Tape

of

Operation

Handler

may

may

to

the

corresponding

connected

is

activated.

Write

Read

Write

Busy

and

be

occur

Data

Tape

Control

Control

Motion

Lost

sensed

at

any

Channel

line

is

Handler

Data

by

time

acti-

and

the

is

II-55

Any

Bit
Bit
Bit 6 and
Bit
Bit
Bit
Bit

number

6
7

8
9
10
10

of

i3It'7

these

Tape

Tape

Tape

Controller

End

Vertical

Longitudinal

responses

Handler
Handler
Handler

of

Operation

may

Lost

Parity

be

active

at

556

at

800

at

200

Data

Error

Parity

Error

at

BPI
BPI
BPI

the

same

time.

If

at

any

appear

8).
and

Lost

The

for
This
activate

Data

input
indicating
not

appear

the

time

signal

(bit
Record
is

selected.

The

Lost

This

sends

the

End

time

the

condition

Bit 8 on

FF

word

that

(operation

the

next

8)

signal

)

Data

an

of

Record

LOST

during a Write

length

is

to

the

of

will

the

cleared

the

computer

input

time

cause

Status

by a new

word

being

frame

appears

is

received

FF

End

would

on a status

also

sets

of

Record

check

character

DATA

operation
required

an

LOST

has

normal

have

from

the

signal

CONDITION

(Write

to

write

Interrupt

lines.

No

on
other

Function, a new

is

been

line.

the

End

DATA

held

in
to

tape

back

before

DURING

in

the H register

accepted

other

be

transferred

(An

unit

of

Record

to

stopping.

Interrupt

the

DURING

signal

two

frames,

Abnormal

Write

Connect,

READ

by

the

respects),

if

Interrupt

Disconnect

data

WRITE

present),

the

End

of

operation

or a Master

until

computer.

the

Lost

to

the X register.

occurs

5

on

Abnormal

FF

channel.

the

Data

Lost

Operation

is

possible

the

Data

If

Data

f.lsec

after

if

the

Read

Tape

motion

Data

signal

the

FF

End

signal

FF

(if

Clear.

Data

will

A

Lost

the

of

control

continues

does

sets

(Page
selected)
until

the

drops,

signal

be

set

Data

End

of

Operation

is

not

does

at

set.

to

Further
a

new

Read

Connect,

operations

or a Master

are

impossible

Clear

signal

until

clears

II-66

the

Lost

the

Data

Lost

FF

Data

is

FF.

clear.

A

new

Function,

PART

III.

MAINTENANCE

The

Controller

identical

computer

Blowers

the

can

to

cool

cabinet.

be

determined

environment

Specification

Cables
Tables
each

The
the
nector
other

are
3-1

Tape

four

Data

1A2

external

connectors

Channel.

(control).

going

to

some

is

those

of

the

Controller

These

No.

118102.

connected

and 3-2

Handler.

is

either

equipment.

Connector

other

SECTION

constructed

the

3000

is

required.

filters

from

to

give

tables

the

the

Table

at

the

Connector

terminated

1B2

is

external

1.

of

standard

series

by

drawing

should

The

be

in

the

3228/3229

SECTION

cable

pin

3-3

connector

numbers

gives a brief

bottom

1A1

or

Connector

either

equipment.

ENVIRONMENTAL

Control

computers.

air

through

cleaned

3200

2.

weekly.

Installation

uses

Power

LOGIC

panel

associated

description

of

the

connector

attaches

attached

terminated

1B1

to a Data

to

another

is

attached

or

Data

components

Normal

reuseable

Power
Manual
Type C power

CABLING

at

the

bottom

with

signals

of

panel

are

Channel

1/0

to a Data

attached

CARE

with

dust-free~

filters

and

or

air-conditioned

at

cooling

from

Engineering

control

rear

of

in

the

two

each

of

these

used

to

fasten

I/O

cable

cable

(data)

going

Channel

to

another

I/O

properties

the

bottom

requirements

wiring.

the

chassis.

cables

signals.

cables

(data).

to

I/O

cable

cable

of

to

from
Con­some

(control)

Tables
Table

3-4

and 3-5

3-6

gives a brief

list

signal
description

and

pin

assignments

of

each

III

of

-1

these

for

the

signals.

Data

Channel

I/O

cables.

TABLE

3-1.

SIGNAL

AND

PIN

ASSIGNMENTS

Note:

Terms

in

parentheses

specifications.

Output

Pin

*F

cable

give

from

322X

signal

20 Write
21

Write

22

Write

23 Write

24

Write

25 Write
Parity
Write
Address
Address

to

60X,

nomenclature

Write

Sprocket

6
7

Connector

used

Signal

in

#J208

60X

manuals

and

Forward

Reverse

Search
Set

Set
Write
Read
MC
Rewind

End

556

BPI

200

BPI

(Write

(Read

(Master

Unload

of

File
Density
Density

Select)

Start)

Clear)

(Stop

(Select
(Select

On

File

Hi

Density)

Lo

Mark)

Density)

Rewind
Address

Turn
Turn

b

Ground

On
On

5
Connect
Reserve

Light

Light

(Unit

(Unit

Select

Select

Light

Light

# 1)

# 2)

,:~

From

,:o:~

From

322X
60X

to

to

322X

60X

III-

2

TABLE

3-2.

SIGNAL

AND

PIN

ASSIGNMENTS

Note:

Terms

in

parentheses

specifications.

Input

cable

~--------~----------------------------------~

Pin

to

give

322X

signal

from

60X,

nomenclature

Signal

Connector

used

#J209

in

60X

20 Read
21

Read

22

Read

23 Read
24

Read

25 Read

Parity

Read

Write

Address
End

Read

Sprocket

Enable

4

of

Record

(Write

(End

Ready)

of

Operation)

manuals

and

~:~

From

):~~:(

From

322X

60X

to

to

322X

60X

z

a

b

File

Mark
Address
Address
Address

Address

Busy

Density
Load

Point

End

of
Ready
Density
Not

Used

Ground

III-3

0
1
2
3

(1 =

Tape

(1 =

556

800

BPI)

BPI)

TABLE

3-3.

SIGNAL

DEFINITIONS

Signal

7

Write

Write

Address

Forward
Reverse

Search

Set

556

Set

200

Write

Definitions:

Information

Sprocket

5, 6,

End

of

File

BPI

Density

BPI

Density

and

Output

7

cable

These

the

322X

bit.

A 4

(6)

lines
These

on

the
address
switch

A 1

signal

A 1

signal

A 1

signal

motion

A 1

signal

(556

lines

A 1

signal

(200

lines

A 1

signal

seven

usec

into

three
60X

is

stops

from

322X

lines

control.

pulse

the

60X

address

Unit

line

corresponding

rotated,

which
which
which

when

which

per

inch)

which

per

inch)

which

to

carry

Six

which

Write

Select

all
initiates
initiates
initiates

an

selects

selects

crl::lbles

60X

information

lines

gates

circuitry.

lines

switch.

address

forward

tape

End

556

200

'.x/rite

carry

the

(eight

to

the
lines

reverse

motion

of

File
BPI

BPI

from

data,

one

information

total)

A

correspond

static 1 signal

Unit

Select

have a momentary

tape

motion

tape

motion

forward/backward.

character

density

density

al!d

Re8.d

Operating

Operating

vprify

the

line

is

Write

carries

on

the

to a setting

appears

setting.

at

150/75

at

150/75

detected.

mode

mode

operations.

register

a

seven

on

When

0

output.
ips.
ips.

in

parity

data

the

the

Tape

Read

MC

Rewind

Rewind

Signal
Turn

Light

Turn

Light

Ground

Rev.

Unload

Definitions:

On

Connect

On

Reserve

C

A 1

signal

A 1

signal

clearing

A 1

signal

at

350

and

Stop.

A 1

signal

Load

Output

A

cable

1

signal

Point

cates a particular

A 1

signal
cates a particular
(Not

used

all

ips

to

when

which
which

enables a Read
establishes

Select

which

initiates

to a Tape

which

initiates

marker.

322X

from

which

which

turns

turns

connected

III-4

conditions.

tape

Unload

tape

60X

on

Unit

tape

handler

on

Unit

tape

handler

to

operation.

initial

Immediately

motion

condition

motion

Select

is

connected

Select

is

reserved

3206.

)

operating

in a reverse

(all

tape

at

350

light

light

conditions

stops

on

ips

to

# 1.

This

to a data

#

2.

This

by a data

tape

direction

supply

the

light

channel.

light

channel.

by

motion.

reel)

nearest

indi-

indi-

TABLE

3-3.

SIGNAL

DEFINITIONS

(Cont'd)

Signal

7

Read

Read

Sprocket

Write

Address
End

of

File

Mark

Busy

Density

Load

Point

Definitions:

Information

Enable

0, 1, 2, 3, 4

Record

(556

BPI)

Input

These
Six

A 1

information
A 1

tape
now

See
A 1

File
A 1
A 1

4
A 1

If

. A 1

Cable

lines

pulse

signal

has

be
address
signal

Mark,
signal
signal

ms

signal

this

signal

to

32

seven

carry

which

from

which

been

performed.

which

or
which
which

after

tape

which

signal

which

2X

from

6

lines

carry

data,

one

signals

the

60X.

indicates

loaded.

5, 6,

and

indicates

Load

Point
indicates a File
indicates

motion

indicates

is

absent,

indicates

OX

information

line

the

322X

that

Write

and

7.
an

has

that

stops.

that

200

or

tape

from

the

carries a parity

to

sample

the

file

protection

Read

Verify

End

of

Record

been

detected.

Mark

tape

556
800

is

BPI
BPI

at

is

in

Load

has

been

motion.

density
density

Point.

60X

to

bit.

the 7 bits

ring

operations

check

character,

detected.

Signal

is

selected.

is

selected

the

of

is

322X.

Read

in

and

may

drops

.

End

of

Ready

Density

Ground

Tape

(800

BPI)

A 1

signal

sensed.

A 1

signal

prepared

ready

is

Not

when

Ready

manipulated
A 1

signal

If

this

signal

which

which

for

its

from

which

indicates

indicates

the

next

Ready

when

indicates

is

absent,

operation.
indicator

power

its

control

is

200

the

the

off

800

BPI

End

60X

is
or

panel.

BPI

or

of

Tape

is

under

The

tape

illuminated.

when

the

density

556

BPI

marker

322X

handler

The

tape

is

selected.

density

has

control

is

always

tape

handler

is

been

and

is

handler

is

being

selected.

III-5

TABLE

3-4.

(Mates a 322X

Pin

(two

used)

SIGNAL

Data

Control

AND

PIN

I/O

Cable

and a 3206

ASSIGNMENTS

or a 3681

Converter)

Signal

(Not

See

in

cable.

note).

AI-2
A3-4
A5-6
A7-8
A9-10

BI-2
B3-4
B5-6
B7-8
B9-10

Cl-2
C3-4
C5-6

C7-8
C9-10
DI-2
D3-4
D5-6
D7-8
D9-10

.EI-2

E3-4
E5-6
E7-8
E9-10
FI-2
F3-4
F5-6
F7-8

F9-10

Data

Bit

00

Data

Bit

Data

Bit

Data

Bit

03

Data

Bit

04

Data

Bit

Data

Bit

06

Data

Bit

Data

Bit

Data

Bit

Data

Bit

Data

Bit
Parity
Channel
Reverse

Bit

Busy

Assembly

Read

Write

Connect
Function
Data

Signal
Reply
Reject
End

of

Record

Parity

Error

(Unused)

Master

(Used
(Used

Clear
Internally)
Internally)

Termination

01
02

05

07
08
09
10
11

Power

III-6

Pin

(two

used)

TABLE

3-5.

SIGNAL

Control

(Mates a 322X

AND
I/O

Control

PIN

ASSIGNMENTS

Cable

and a 3206)

Signal

(Not

in

cable.

See

note)

NOTE:

AI-2
A3-4
A5-6
A7-8
A9-10

BI-2
B3-4
B5-6
B7-8
B9-10
CI-2
C3-4

C5-6
C7-8
C9-10
DI-2
D3-4
D5-6
D7-8
D9-10
EI-2
E3-4
E5-6
E7-8
E9-10
FI-2
F3-4

F5-6
F7-8
F9-10

The
tor
lines

29-pair

are

used

in

the

cables

to

I/O

terminate

provide

cable.

power

Status
Status
Status
Status

Status
Status
Status

Status

Status
Status
Status

Status
Other

Bit

Bit
Bit
Bit

Bit

Bit

Bit

Bit

Bit

Bit

Bit

Bit

Control
Computer
Negate

Suppress

Inte

rrupt
Interrupt
Interrupt
Interrupt
Interrupt
Inte

rrupt
Interrupt
Interrupt
(Unused)
(Unused)
(Unused)
(Unused)
(Unused)
(Unused)
Termination

in

61-pin

to

the

terminal

00

Ready

01

R/W

Control

02

Density

03

File

04

Load

05

End

06

Write

07

Density

08

Lost

09

Longitudinal

10

Vertical

11

Tape

(1 =

Mark

Point

of

Tape

Enable

(1 =

Data

Parity

Handler

(Unused)

Running

BCD

Conversion

(Unused)

Assembly/Disassembly
Line.

a

Line

1

Line

2

Line

3

Line

4

Line

5

Line

6

Line

7

Power

connectors.

Pins

assembly

(and/or)

556

800

Parity

Reserved

(1604

F9-10

and

BPI)

BPI)

Error

Mode)

do

not

Bus

Error

of

each

connect

for

connec-

to

III-7

TABLE

3-7.

DATA

CHANNEL

SIGNALS

'~'~Data

Signal

Static 1 signal
operations.

1)

In a Read
reading

2)

In a Write

available

Static 1 signal
Function,
or

Data

1)

If

the

2)

If

signal
a

3)

In a Read

or

Signal

connection

322X

a

specified

is

Reply.

placed a 12­Signal.

In a Write

samples

received

Signal

drops

operation,

information

operation,

on

the

data

produced

Data

Signal.

drops.

can

connects

function

received,

operation,

bit

word

operation,

the

data

by

and

by

be

made

the

the

lines

the

322X

when

Data

Signal

transmitting

Data

lines

the

and
322X

Signal

when

desired
can

be

322X

the

322X

on

the

the

322X

in

response

during

322X

returns a Reply

indicates

Signal

the

in

drops

indicates

Write

response

when

Connect

tape

unit

performed

executes

sends a Reply

data

lines

sends a Reply

to

both

it

to

operation

Connect,

signal

and

when

the

in

response

the

Read

that

the

that

and

to

the

322X

may

data

channel.

information

Write

may

to a Connect,

Function,

is

received,

returns a Reply.

the

Function

function

Data

as

soon

as

Signal.

and

to

soon

as
the

as

3206.
begin

begin.

returns

it

has

Data

it

is

*'~*Reject

"r:Data

'~*Channel

Bits

Busy

Static 1 signal
Function
cannot
respective

signal,

be

performed

signal.

Static 1 signal
signal
specified

The

12

is

produced

block

lines

follows:

1)

In a Read

frames,
are

sent

2)

In a Write
in

12-bit

into

6-bit

3)

The

Connect

via

the

12

Static 1 signal
Read/Write

operation.

produced

if

produced

of

which

(input)

and

assembled

to

the

(output

bytes.

frames

code

data

which

the

at

in

response

data

carry

operation,

3206

operation),

The

and

lines.

indicates

by

the

connection

the

time

by

the

has

been

data

are

into

data

channel.

322X

writes

and

Function

322X

in

response

cannot

that

the

322X

during a Read

to

the

Data

reached.

bidirectional,

data

is

12-bit

data

bytes.

is

disassembles

them

on

code

the

data

channel

be

made

322X

Signal,

read

received
tape.

are

to a Connect

or

receives

operation.

if

and

from

tape

These

from

these

12-bit

received

is

performing

the

Function

the

the

end

perform

in

12-bit

the

by

the

of

6-bit

bytes

3206

bytes

322X

or

This

the

as

a

III-

8

~,p

arity

Bit

TABLE

A

parity
the
total

3-7.

322X

number

DATA

bit

accompanies

and

the

of

CHANNEL

3206

Is

transmitted

data

SIGNALS

each

channel.

12

is

bits

of

Odd

always

(Cont'd)

data

parity

an

odd

transmitted

is

used,

number.

between

so

the

*~:<*Reverse

Assembly

Static 1 signal
operation.

Static 1 signal

operation.

Static 1 signal
available
a

Reply

on

or

Reject.

Static 1 signal
available
a

Reply

on

or

Reject.

Static 1 signal

plus

the

parity

returned

to

the

handler.

A 1

zero

This
while

The

signal

initial

signal

322X

from

conditions

directs

receiving a computer

uses

received

received

received

data

received

data

produced

bit

3206

the

eleven

lines.

lines.

is

not

only

computer

the

by

by

by

The

by

The

if

an

if

and

data

status

the

the

the

signal

322X

signal

the

total

odd

the

which

clears

channel

word

lines

322X

from

322X

from

322X

when a 12-bit

drops

when a 12-bit

drops

number

number.

322X

is

connected

returns

all

connections

to

reverse

from

the

to

indicate

the

the

when

when

of

This

channel

322X.

3206

during a Read

3206

during a Write

Connect

the

322X

Function

the

322X

Is

in

the

signal

to

some

and

to

tape

the

byte

its

condition.

returns

code

returns

12

will

322X
handlers.

positions

code

data

be

tape

is

is

bits

to

*~:'~:'Negate

BCD

Conversion

~:'*Suppress

Assembly/

Disassembly

*~:<~:<Interrupt

Lines

~:'Bidirectional

~:<*Signal

~:<~:<~:'Signal

flow
flow

signal
from
from

Static 1 received
internal-to­BCD

mode.

BCD

conversion

when

the

322X

Static 1 signal

by

external

It

also

during a Read

is

used

received

assembly / disassembly

322X

from
(upper 6 bits
6

bits

A 1

signal

the

322X

an

Interrupt

Number

of

the

switch.

the

data

of

the

data

channel

on

an

Interrupt

has

reached a predetermined

line

corresponding

flow

the

3206

to

the

322X

the

322X

to

the

3206

the

32

BCD

disables

by a 3400

by

in
channel
data

channel

III-

9

2X.

This

conversion

the

automatic

operation

or

the

322X.

the

322X.

writes

word).

word

are

line

indicates a tape

to

signal

disables

during a Write

external-to-internal

in

BCD

3600

computer.

This

signal

Each

word

one 6-bit

During

all

zeros.

condition.

the

setting

frame

Read,

handler

of

the

the

operation

mode.

)

disables

received

on

the

Each

Equipment

automatic

(Used

the

by

the

tape

the

upper

connected

322X

has

Rev.

in

only

to

C

In

the

322X

may

be
handler,
problem:

1)

2)

in

the

or

Check
a)

b)

c)

Check

SECTION

system,

Read/Write

the

tape

the

Change

Try

several

problem

Cable

suspect

cabling.

in

the

If

the

positions

the

which

handler

tape

handler

the

switch

is

in

another

tape

If

original

problem

and

logic

matrix

3.

GENERAL

includes

control,

itself.

positions

the

switch

tape

handler.

the

program

tape
still

continue

the

the

The

setting

and

handler

Remove

handler.
exists,

with

MAINTENANCE

322X

and

associated

logic

matrix

following

on

the

tape

Connect

codes.

logic.

that

is

known

power

runs

using

recable

step

the

the

2.

which

steps

handler

to

from

new

tape

PROCEDURE

tape

handlers,

gates

may

If

be
the

tape

be

and

use a new

the

unit

working

tape

handler,

information

used

handlers

handlers

now

in

to

their

to

localize

works,

place

the

the

problem

to

the

Connect

the

of

when

problem

original

tape

the

code.

the

re-

is

3)

a)

Check

a)

b)

c)

d)

Recable
the

progr::lm

logic
handler

the

If

the

as

shown

If

the

shown

If

the

events

and

II

If

the
events
II-49

the

that

feed

and

control
control

in

control

in

the

control

listed

- 3 9.
control

listed

and

II-51.

tape

handler

rl1nR;

the

the

tape

continue

logic
won't

the

won't

flow

won't

in

won't

in

connect

flow

execute a function,

charts

Write,

Section 4 and

Read,

Section 4 and

problem

unit.

with

chart

on

to

step

on

check

check

the

If

3.

the

page

pages

the

the

next

is

the

tape

II-55

out

timing

out

timing

higher

in

the

problem

handler,

II

- 3

(Figure
check

the

the

or

Land

still

through

Write

diagrams

Read

diagrams

lower

M

exists,

check

2-

out

the

II-65.

logic

logic

cable

cards

out

2)

of

function

using

on

using

on

and

recable

the

this

pages

the

pages

connectors.

associated

the

connect
manual.

logic

the

sequence

II-35,

II-37

sequence

II -45,

II -47,

If

tape

logic

as

of

of

III

-10

The

following

table

will

be

helpful

in

adjusting

certain

critical

delays:

TERM

Y024
Y057

Y045
Y041

Y058

Y064

Y027

Y028
Y067
Y033
Y029
Y031
Y068
Y034
Y070
Y071
Y038

Y060
Y039

Y061
Y040

Y062
Y037
Y009
Y023

Y056
Y042

Y059
Y047
Y046
Y036
Y044

Write

Write
Write

From
Reply
Reply
Reply
Reply
Reply
Reply
Reply
Reply
Reply
Reply

200

556

800

End
End
Write

(LP)

Stop
Term.

Sprocket
Timing
Timing
Timing
Timing
Timing
Timing
Timing
Timing
Timing
Timing

BPI

BPI

BPI

of

Record

of

Record

(LP)

Non-Stop

Read
Read

Stop

N

on-Stop

Lost

Data

TABLE

TITLE

Write

Read

3-7.

I

to

II

Lockout
Lockout
Lockout

signal

CRITICAL

(800

BPI)

(556

BPI)

(200

BPI)

DELAY

PAGE

8(F24A)
8(G22A)

8(F29A)
8(F41A)

8(K08A)
II(G23A)
II(KI6A)
II(E32A)
II(G28A)

Il(E28A)

Il(I40A)

ll(I38A)
II(E33A)
11

(E38A)
II(L05A)
II(L06A)
II(D21A)

Il(KI2A)
11

(D22A)

Il(KI3A)
II(D23A)

11

(KI4A)

II(DI7A)

7(I33A)
8(F23A)

8(G21A)
8(F23A)

8(K04A)

11

(D33A)

11

(D32A)

II(E36A)

8(F37A)

TABLE

DELAY

3.5

2.6

5.2

0.2

O.
O.

0.2

O.

0.2

O.
O.

1. 5

3. 5 psec
12
28

50
72

140

20

40

400

5

30
70

3
6

1

3.5

2
1

ms

7

ms

5

ms
ms

ms

psec

2

psec

5

psec
psec

2

psec
psec

2

psec

1

psec
psec

psec
psec

psec
psec

psec
psec

psec
psec
psec

ms
ms

ms
ms

ms

ms

psec

ms

TAPE

150

both
150

both
both
both
both
both
both

both
both
both
both
both

150

150

150

both
both

150

150

both
both
both
both

SPEED

75

75

75

75

75

75

75

ips
ips

ips
ips

ips
ips

ips
ips

ips
ips

ips
ips

ips
ips

III

-11

APPENDIX

A

TAPE

Applicable
tape

handlers.

familiar

with

synchronizer

SYNCHRONIZER/CONTROLLER

to

the

synchronizers

It

is

intended

these

systems

to

as

that
benefit

well

control

as

nomenclature.

people

to

aid

GLOSSARY

the

603, 604,

who

are

in

the

606,

and

not

completely

standardization

607

of

Acceleration

Time

The
speed.

time

required

The

Preferred

606

for

requires

Term:

the

Start

tape

3

ms.

Time

handle r to

reach

full

tape

Assembly

Backspace

Backward

BCD

Conversion

BCD

Binary

Format

The
the

tape

One

Tape

See

Reverse

See

Binary

The
format

function

of

the

is

change

or

into

motion

moved

Coded

from

from

of

the

words

one

Read.

external

internal

converts a character
equals
to-internal

One
BCD).
being
number
were

(no

1,

of

two

This

stored.

"zero"

used,

sprocket

bit 5 is

operates

format

format

Binary

can

the

tape

pulse

synchronizer

to

be

passed

directive

record

Decimal

functions

length

format.

BCD

to

internal.

of

all

zeros

complemented

conversely.

representations

is

often

used

format

be

recorded

handler

would

could

be

generated).

that

packs

to

the

of

in

the

format

Internal-to-external

to

twelve

(bit 4 remains

(See

used

when

employs

on

the

not

characters

computer.

the

tape

reverse

to

external

and

Internal

on

tape

numerical

odd

parity

tape.

If

recognize

handler.

direction.

BCD

any

time

1).

External-

BCD.

)

(opposed

data

so

that

even

parity

the

frame

from

bit

to

is

the

4

Binary
Decimal

Coded

Format

(BCD)

Bit

One

of
Binary).
being
not

necessary

format.

The

binary

two

This

stored.

)

format

format

BCD

to

write

equivalent

A-1

representations

is

used

when

format

employs

"zero".

of a de

cimal

used

alphanumeric

even

(Also

referred

digit.

on

parity

tape

(opposed

data

because

to

as

Coded

is

to

it

is

Bit

Density

Commonly-used
inch
per

(BPI).

inch,

It

but

term

does

rather

not

the

for

really

number

the

number

mean

of

the

bits

of

tape

total

on

frames
number

one

of

the

per

of

bits

tracks.

Block

Buffer

Busy

Byte

Change-On-Ones

Preferred

One

group

Preferred

A

register
transit
transfer

The

state

tape

is

A

group

refers

Method
polarity

If

a 0

or

record

to

hold

between

rates

of

the

in

motion.

of

bits,

to a bi-octal

of

representing

of

each

is

to

be

written,

Term:

Term:

information

pieces

or

word

tape

usually

character

channel

Fr~mes

of

data.

Record

of

equipment

lengths.

handler

part

information

is

changed

the

polarity

Per

Inch

temporarily

that

while

operate

and a corresponding

of a larger

(6

bits)

word.

in

tape

on

tape.

if

a 1

remains

nomenclature.

The

is

to

unchanged.

it

at

signal

Usually

magnetic

be

written.

is

in

different

when

Channel

Character

Character

Density

Mode

See

Track

The

number

(Commonly

The

method

output

word

of

termed

of

regardless
During a Read,
each

with

used

frame

zeros).

to

(other

describe

6-bit

bits

writing

an

input

characters

Suppress

character

A-2

characters

per

one

of

the

word

inch)

tape

written

frame
length
is

sent

in

the

of

input

Assembly/Disassembly

mode

in

3000

from

the

to

on

one

each

computer

the

computer

word

Series

inch

of

computer

word.

for

are

packed

is

the

term

operation.

tape

Check

Check
Counter

Check

Coded

Connect

Control

Character

Character

Character

Gap

A

frame

even

parity

A

counter

The

check

See

The

equipment

Used

written

number

frame

used

three

blank

character.

Binary

selection

to

name

Coded

to

(synchronizers)
342X

or

362X.

controls.

)

on

the

tape

of

bits

in

each

using

be

to

frames

of

the

used

one

even

parity.

space

the

between

Decimal

synchronizer

by

the

of

the

independent

format.

in a multi-controller

(The

342X

Controller

at

the

end

channel.

check

character

the

'and

computer.

of a record

In

effect, a longitudinal

to

gap.

end

of a record

the

tape

handler

bi-direction

device

has

two

controllers

such

as

independent

make

and

in

as

the

an

the

the

Controller

Deceleration

Density

Direct

Transfer

Time

The

interface

tape

handler.
circuits,
(4)

timing

(Often

The

time

The

605
Preferred

The

rate

The

926

which

between

It

provides

(2)

tape

control,

referred

to

required

requires 2 ms.

Term:

of

characters

and

1615

permit

two

A-3

the

computer
the

following

motion

(5)

control,

format

control,

as a synchronizer.

for

the

tape

handler

Stop

Time

per

inch

of

synchronizers

computers

to

communicate

(or

data

channel)

functions:

(3)

Assembly/Disassembly,

and

(6)

parity

)

to

stop

tape

tape

have

(200,

satellite

556,

capabilities

directly.

and

(1)

selection

checking.

motion.

or

800).

the

Disassembly

The

function

output

word

of

into

the

synchronizer

6-bit

characters

that

converts a computer

to

be

written

on

tape.

Electronic

End-Of-

End-Of-

End

Of

Operation

End

Of

Record

File

File

Switch

Mark

Mark

Gap

Term

used

handler

A

one-character
written
tape.

with

Usually,

considered

precede

The

blank

check

The

character

state
handler
is

still

requesting

The

state
gap

on

the

in

the

selection

even

one

the

file

six

inches

that

exists

has

signalled

that

exists

tape

362X

to

describe

circuits.

record

parity

various

file.

(including
used

records

Six

inches

to

mark.

of

tape

between a file

from

the

previous

in

the

synchronizer

an

End

of

input.

v:hen

the

Read

following a record

the

its

aid

in

between

of

blank

record.

Record

circuits

of

data.

control

check

character)

addressing

two

file

tape

(file

mark

when

while

the

sensp. a blank

and

tape

areas

marks

mark

and

the

tape

computer

the

of

on
are
gap)

"17"

End

Of

Tape

Equipment
Switch

Erase

Error

Head

Detection

Selection

A

marker

area.

A
which
select

A
tape

switch

is

the

tape

handler.

The

head

preparation

The

combination

parity.

on

the

marker

on

the

manually

unit.

that

It

for a new

A-4

tape

indicating

is

sensed

tape

handlers

set

to

physically

is

used

Write.

of

checking

by

and

determine

precedes

to

erase

transverse

the

end

of

photocells.

some

the

of

address

the

any

previous

useable

the

Write

and

longitudinal

recording

synchronizers

that

will

head

on

the

recording

in

External

BCD

See

Internal

BCD.

File

Protection

File

Flag

Format

Function

Code

Ring

The

various
Load
Mark

A
that
the

A
that

Point

and

plastic

must

ring

programming

have

operate

other.

In

general,
(Parity,
to

designate

Computer

of

the

tape

records

and

the

End

ring

be

present

is

not

the

Satellite

together

the

Density,

Parity

I/O

system.

between

the

first

of

Tape.

inserted

for

inserted,

convenience

in

File

the
the
the

File

Mark

supply
Write
recorded

employed

feature.

more

selectable

efficiently

difference

Assembly/Disassembly).

mode

codes

used

only.

to

activate

Markers

or

circuit

It

permits

by

between

reel

of

to

data

cannot

by

the

the

being

in

able

recording

selection

or

between
the

last

the

tape

handler

operate.

be

synchronizers

computers

to

signal

modes

Sometimes

and

operation

the

File

When

erased.

to

each

used

Function

Holding

Register

Horizontal

Input

Lockout

Parity

A

lockout

from

being

selection

A

buffer

the

computer.

tape

handler

See

Check

Preferred

The

Read

that

prevents a new

recognized

no

longer

register

It

and

the

Character.

Term:

word

delivered

A-5

by

requires

that

temporarily

permits

computer.

Longitudinal

function

the

synchronizer

synchronizer

better

to

the

computer.

code

or

until

control.

stores

the

input

synchronization

Parity

the

the

between

I/O

present

word

line

to

the

Internal

BCD

The

method

in

the

computer.
computer
equivalents
therefore

J =

41).

can

perform

of

to

of

easier

See

use

BCD

the

alphanumeric

It

is

an

than

external

the

alphabet

to

sort

(A =

conversion.

conversion

representation

easier

representation

BCD,

go

in

ascending

21,

J = 41

The

automatically.

since

3000

the

order

rather

Series

used

internally

for

numeric

and

than

synchronizers

the

are

A = 61,

Interrupt

Least

Significant

(Character)

Length

Load

Error

Point

Longitudinal

Lost

Data

Parity

Byte

A

system

puter

In a 12-

if

a

bit

significant.

A

condition

occurs

if

characters

A

marker

usable

portion.

handler.

See

check

A

condition
during
signal

write

Read
at

the

Write

does

two

signal

time

that

permits

predetermined

word

the

placed

in

the

number

in

the

(0

through

925,

computer

on

It

is

character.

that

can

if

the

Write

not

appear

frames.

is

to

present

send

During

the

the

926

of

the

sensed

exist

for

but
data

synchronizer

condition

11),

and

frames

word.

tape

to

by

in

the

signal

the

length

Read,

the

Data

channel

to

signal

occurs.

bits 0 through 5 are

1615

synchronizers

on

tape

is

not a multiple

indicate

photo

3000
is

the

the

circuits

Series

present,

of

time

condition

signal

the

Reply

beginning

in

synchronizers

but

the

required

exists

does

not

signal.

the

the

which

the

Data

appear

com-

least

of

the

tape

to

if

the

of

Most

Significant

Byte

(Character)

Motion

Directives

In

the

most

The
They

12-bit

significant.

Function

are

used

word

codes

to

A-6

(0

through

which

position

move

tape.

11),

bits 6 through

tape

but

do

not

11

are

transfer

the

data.