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SERIES 90, PM9005 OPERATING INSTRUCTIONS
(2704/2708 PERSONALITY MODULE)
2704 and 2708 PROMSs require a specialized programming sequence. This sequence causes
personality module
The programming characteristics
programmed,
data is
the new data
MULTI-PASS PROGRAMMING
The programming technique for the 2704
to
100 programming passes through all addresses. This operation requires
The required multi-pass programming is accomplished in
data in a RAM memory. The relationship
shown below.
DEVICES
to
be added
guarantee programming
INPUT
to
operate in a manner different than other personality modules.
all other locations
to
a partially programmed 2704 or 2708 the
is
added.
of
worse-case devices. Using the
MASTER
SOCKET
KEY
BOARD
~
~
"-
"'-'/
TTY
V
of
the 2704 and 2708 PROMs require
must
be programmed
or
2708 specifies a fixed
of
the RAM memory
to
prevent data loss. It is important
existing
multi-pass
PM9005 personality module by buffering all
"
/
/
RAM
BUFFER
/
-+
PROG
DUPLICATE
number
to
the
..
~
COpy
PROM
that
when any location is
to
data
must
be
reprogrammed when
of
passes through all addresses
technique the Series
just
over 2 minutes
COPY ROM and
.n"
......
input
READ
f CHECK
'\
.0
the
PM9005
note
90
performs
for
a 2708.
devices
VERIFY
to
that
be
if
is
PT
READER
LAST ADDRESS (Buffer Full Signal)
The RAM
automatically transferred
location
LAST ADDRESS condition occurs when data
LAST ADDRESS is defined as either:
TH E LAST ADDRESS must be programmed in order
buffer
of
collcts
the RAM buffer is used as a signal to start the
V
the data
to
~
PROM-RAM TRANSFER
to
be programmed
the PROM by the multi-pass programming technique. The LAST ADDRESS
LAST ADDRESS
LAST ADDRESS
is
entered
into
the PROM. When the RAM buffer is full the data is
multi-pass
into
the last address location
for
2708
is 3FF
for
2704
is 1
FF
to
transfer data from RAM
programming.
to
copy PROM.
of
the RAM. THE
1
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MANUAL OPERATION
LIST and VERIFY modes are not affected by the multi-pass programming requirement.
listed direct from the
COpy
ROM.
In
VERIFY the COPY ROM is verified against the MASTER
In
LIST, data is
ROM
or
other input device data.
PROGRAM and DUPLICATE operate as described in the operating procedure except that data from
the
Input device (Keyboard, MASTER s-ocket, Paper Tape, TTY) is collected in a RAM memory until the LAST
ADDRESS
multi-pass programming sequence, transferring data from the RAM
As the programming operation proceeds in either the PROGRAM
display
the RAM and
RAM data in the hexadecimal display, and
operation
When the read-check, operation is complete an
condition
will
indicate the pass count in decimal from
occurs. When the LAST ADDRESS is detected the Series
to
the
2708/04.
or
DUPLICATE mode the Hexadecimal
00
to
99. At the end
of
pass
90
begins the required
99
a read pass compares
PROM. If any address does not compare the read pass halts and displays the address and
the PROM data in the binary indicators. The read-check
will
continue
with
the ENTER key.
"F"
will
appear in the
display
indicating the operation is
finished. -
SPECIAL OPERATIONS
The RAM memory has special operating characteristics which may
partially programmed
into
the RAM when the
be
entered to the RAM from any
If the ADDRESS FIELD
only
filling
input
the specific field of the RAM. Data can be entered
device.
PROM. The cO'ntents
first
data character is entered in either PROGRAM
ofttje
definition
input
does not include
of
the PROM in the
COpy
devices (Keyboard, MASTER socket, Paper Tape, TTY, etc.).
the
LAST ADDRESS the
to
be
useful
for
editing
or
adding
to
socket are automatically transferred
or
DUPUCATE. Data can also
inpufoperation
will
result in
the RAM in segments from more than one
a
It is important
RAM.
If
should be used
changes should
When the RAM is
the LAST
complete contents
OPERATIONAL
Because
pauses as the
to
multiple
note that the RESET key causes the entire
modes (PROG and
only at the sta'rt
be
made
without
full,
or when
DUP)
are used
to
condition
the RAM. Thereafter
using the RESET key.
it
is desired
to
initiate
to
programming, the
COpy
enter segments
ADDRESS. When the LAST ADDRESS is entered the programming operation
of
of
the size
~DELA
of
Series
the RAM
YS
the 2704
90
performs certain operations.
to
the PROM using
(512
addresses) or 2708(1024 addresses) there will' be some notable
the
100 pass programming
1. Erase check preceeding any operation requires 3 seconds
erased.
2. Transferring the contents
first
the
data character is entered in the PROGRAM
of
the PROM
to
RAM which automatically occurs when
or
DUPLICATE modes requires
three seconds.
PROM contents
of
data
to
until
the operation
PROG
if
the PROM is
mode can be
technique~
to
be
transferred
the
RAM the RESET key
is
complete, mode
used
will
transfer the
,
fully
to
to
the
enter
2