Fic a440 Service Manual J-APPENB

Appendix

Pin Assignments

B.1111 CRT (VGA) Connector

B.B.

The pin assignment of the VGA connector is as follows:

CRT (VGA) Connector

CRT (VGA) ConnectorCRT (VGA) Connector

No PIN ASSIGEMENT(by: sort) DESCRIPTION

1 RED Video_5 :O

(analog)

2 GREEN Video_5 :O

(analog)

3 BLUE Video_5 :O

(analog) 4 Monitor ID Bit 2 Option 5 GROUND Ground 6 RED Return (ground) Ground

7 GREEN Return (ground) Ground 8 BLUE Return (ground) Ground 9 KEY (no connector) VCC

10 SYNC Return (ground)

11 MONITOR ID Bit 0_5

12 MONITOR ID Bit 1_5 :I DDC monitor data

Red this DAC analog output drives the CRT interface. Green this DAC analog output drives the CRT

interface.

Blue this DAC analog output drives the CRT interface.

Ground

Monitor Sense Indicator

13 HORIZONTAL SYNC_5 :O

(t/s)

14 VERTICAL SYNC_5 :O

(t/s)

15 MONITOR ID Bit 3_5 :I/O

Absolute Maximum Conditions

The following parameters are maximum ratings for VGA. Permanent device damage may occur if these rating are exceeded. Extended exposure to these ratings may also cause device failure.

PARAMETER MIN MAX UNIT

I/O VOLTAGE -0.5 6.25V V

OUTPUT CURRENT 50 m A

CRT Horizontal Sync this output is The Horizontal sync pulse for the CRT Monitor. CRT Vertical Sync this output is the Vertical sync pulse for the CRT Monitor. DDC monitor clock

FIC A440 Series Service Manual B-1

Pin Assignments

B.2222 Serial Port Connector

B.B.

Serial Port Connector

Serial Port ConnectorSerial Port Connector

The pin assignment of the serial (COM1) port connector is as follows:

No PIN ASSIGMENT (by: sort) DESCRIPTION

1 DCDA#_T:I Active low Data Carrier Detect inputs

For the serial port. 2 SINA_T:I Receiver serial data input for port 1. 3 SOUTA_12:O Transmit serial data output for port 1. 4 DTRA#_6:O Active low Data Terminal Ready

Outputs for the serial port. 5 GND Ground 6 DSRA#_T:I Active low Data Set Ready inputs

For the serial port. 7 RTSA#_6:O Active low Request to Send Outputs

For the serial port.

8 CTSA#_T:I Active low Clear to Send inputs

For the serial port.

9 RI#_T:I Active low Ring Indicator inputs

For the serial port.

B.3333 Parallel Port Connector

B.B.

Parallel Port Connector

Parallel Port ConnectorParallel Port Connector

The pin assignment of the parallel/printer (LPT1) port connector is as follows:

No PIN ASSIGMENT(by: sort) DESCRIPTION

1 STB#/DS0#_D14/_P14/_D12:O An active low pulse on this output is used to strobe the

printer data into the printer. The STROBE output is the complement of bit 0 of the printer control register. Refer to parallel port description for use

of this pin in ECP and EPP mode. Active low outputs select driver 0.

2 PD0/INDEX3#_P14/_S:IO/I Port data 0.

This active low Schmidt trigger input senses from the disk drive that the head is positioned over the beginning of a track as marked by an index hole.

3 PD1/TRK0#_P14/_S:IO/I Port data 1

This active low Schmidt trigger input senses from the disk drive that the head is positioned over the outermost track.

4 PD2/WRTPRT#_P14/_S:IO/I Port data 2

This active low Schmidt trigger input senses from the disk drive that a disk is write protected. Any write command is ignored.

5 PD3/RDATA#_P14/_S:IO/I Port data 3

Raw serial bit stream from the disk drive, low active. Each falling edge represents a flux transition of the

encoded data.

6 PD4/DSKCHG_P14/_S:IO/I Port data 4

This input senses that the driver door is open or that the diskette has possibly been changed since the last drive selection.

7 PD5_P14:IO Port data 5

B-2 FIC A440 Series Service Manual

Pin Assignments

No PIN ASSIGMENT(by: sort) DESCRIPTION

8 PD6/MTR0#_P14/_D12:IO/O Port data 6

This active low outputs select motor Drives 0.

9 PD7_P14:IO Port data 7

10 ACK#/DS1#_T_D12:I/O A low active output from the printer indicating that it has

received the data and is ready to accept new data. Bit 6 of the printer status register reads the ACK# input. Refer to parallel port description for use of this pin in ECP and EPP mode.

11 BUSY/MRT1#_T/_D12:_I/O This is a status output from the printer, a high indicating

that the printer is not ready to receive new data. Bit 7 of the printer status register is the complement of the BUSY input. Refer to parallel port

Description for use of this pin in ECP and EPP mode. This active low outputs select motor Drives 1.

12 PE/WDATA#_T/_D12:I/O Another status output from the printer, a high indicating

that printer is out of paper. Bit 5 of the printer status register reads the PE input. Refer to parallel port description for use of this pin in ECP and

EPP mode. This active low high current driver Provide the encoded data to the disk drive. Each falling

edge cause a flux transfer on the media.

13 SLCT/WGATE#_T/_D12:I/O This high active output from the printer indicates that it

has power on. Bit 4 of the printer status register read the SLCT input. Refer to parallel port description

For use of this pin in ECP and EPP mode. This active low high current driver allows current to flow

through the write head. It becomes active just prior to writing to the diskette.

14 AFD#/DSB#_D14,_P14/_D12:O

,O/O

15 ERR#/HDSEL_T/D12:I/O A low on this input from the printer indicates that there is

16 INIT#/DIR#_D14,_P14/D12:O,O

17 SLIN#/STEP#_D14,_P14/_D12:

O,O/O

This output goes low to cause the printer to automatically feed one line after each line is printed. The AFD# output is the complement of bit 1 of the printer control register. Refer to parallel pot description for use of this pin in ECP and EPP mode.

a error condition at the printer. Bit 3 of the printer status register reads the ERR# input. Refer to

Parallel port description for use of this pin in ECP and EPP mode. This high current output selects the floppy Disk side for reading or writing. A logic “1” on this pin means side 0 will be accessed while a logic “0” means side 1 will be accessed.

This output is bit 2 of the printer control register. This is used to initiate the printer when low. Refer to parallel port description for use of this pin in ECP and EPP mode. This high current low active output determines the direction of the head movement. A logic “1” on this pin means outward motion, while a logic “0” means inward motion.

This active low output selects the printer. This is the complement of bit 3 of the printer control register. Refer to parallel port description for use of this pin in

ECP and EPP mode. This active low high current driver issues a low pulse for each track to track movement of the head.

FIC A440 Series Service Manual B-3

Pin Assignments

No PIN ASSIGMENT(by: sort) DESCRIPTION

18 GND: Ground 19 GND: Ground 20 GND: Ground 21 GND: Ground 22 GND: Ground

23 GND: Ground 24 GND: Ground 25 GND: Ground

B.4444 Docking Port Replicator

B.B.

Docking Port Replicator

Docking Port ReplicatorDocking Port Replicator

The pin assignment of the port replicator connector is as follows:

Number Function Pin name

51 LPT_PD0 49 LPT_PD1 47 LPT_PD2 45 LPT_PD3 43 LPT_PD4 41 LPT_PD5

39 LPT_PD6 37 30 32 34 36

40 42 LPT_SLCT 44 LPT_ACK# 46 LPT_BUSY# 48 17 COM_PSOUTA

16 COM_PSINA 15 COM_PDTRA# 18 COM_PDSRA# 21 COM_PRTSA# 23 COM_PCTSA# 19 COM_PRIS/D#

20 57 EKB_DATA 59 EKB_CLK 58 MOUSE_DATA 60

3 CRT_RED

7 CRT_GREEN 5 CRT_BULE 4 CRT_HSYNC 8

Printer Port

COM Port

Ext K/B & PS2 Mouse

CRT

LPT_PD7

LPT_SLIN#

LPT_INIT#

LPT_ERR#

LPT_AFD#

LPT_PE

LPT_STB#

COM_PDCDA#

MOUSE_CLK

CRT_VSYNC

B-4 FIC A440 Series Service Manual

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