Sharp PC-1475 Info


Available Accessories

Model
Type
Connector
CE-140F
Disk drive
Expansion port
CE-126P
Thermal printer & cassette interface
Expansion port
CE-124
Cassette interface
Expansion port
CE-152
Cassette recorder
CE-126P or CE-124
CE-140P
Color printer
Serial port
CE-515P
Color plotter
Serial port & CE-516L cable
CE-210M
2kB RAM card
S1/S2 slot
CE-211M
4kB RAM card S1/S2 slot
CE-212M
8kB RAM card (included)
S1/S2 slot
CE-2H16M
16kB RAM card S1/S2 slot
CE-2H32M
32kB RAM card S1/S2 slot

15-Pin Serial Interface Pinout

Pin 1 is located next to the contrast adjustment knob.
Serial speeds are 300, 600 or 1200 baud.

Pin
Name
In/Out
1
Frame ground

2
Transmit data
in
3
Receive data
out
4
Request to send (RTS, high before sned)
out
5
Clear to send (CTS, must be high to send)
in
6
n/c

7
Signal ground

8
Carrier detect
in
9
n/c

10
+5V (?)

11
Receive ready (DTR, high if ready to receive)
out
12
Peripheral acknowledge (for CE-140P) in
13
+5V (?)
14
Data terminal ready (high after OPEN)
out
15
Peripheral request (for CE-140P)
out

11-Pin Printer Interface

Pin 1 is located next to the on/off switch

Pin
Name
In/Out
1
n/c

2
+6V

3
Ground

4
Signal
out
5
Signal out
6
Used by CLOAD, test by "TEST 128"
in
7
Used by CSAVE, controlled by port-C bit 4,5,6
out
8
Signal in/out
9
Signal in/out
10
Signal out
11
Signal
out

Port-to-Memory Mapping


Address
Pin
In/Out
Serial interface Pin
Printer Interface Pin
0x3800 - 0x38FF
0
out
4
4

1
out
14


2
out
11

0x3A00 - 0x3AFF
0
out
11

1
out
10

2
out
5

3
out
8
0x5D (Port B)
3
in

8

4
in/out

9

5
in/out
3


6
in/out 5


7
in/out 8

0x5E (Port F)
1
out
2