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B.2 serial port connector, B.3 parallel port connector, Pin assignments – FIC A360 User Manual

Page 176

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Pin Assignments

B.2 Serial 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.3 Parallel

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

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.


B-2

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