Epson LQ-1050 Technical Manual page 236

Interface
Use:
3 2
Number of pins:
Pin No. Signal
1 D5
D4
2
D7
3
4 AB 1
A5
5
A6
6
7 A lO
8
9
A9
10
11 A8
12 D2
D1
13
14
DO
15
16 AO
17 D3
18 CG
19
20
Al 4
A4
21
22 WR
23 A7
+ 5
24
25 Al 1
26 PROG
27 Al 2
28 Al 3
29
30
ABO
31 A2
32 A3
with optional cartridge
Table A-16. CN5 Pin Assignments
Dir.
Data bus 5
Data bus 4
Data bus 7
Bank 1
0
Address bus 5
o
Address bus 6
o
Address bus 10
o
I Reset signal
—
Address bus 9
o
o Address bus 8
Data bus 2
Data bus 1
Read strobe
o
Data bus O
o Address bus O
Data bus 3
CG select
o
Data bus 6
Address bus 14
0
o Address bus 4
Write strobe
o
Address bus 7
o
+ 5V DC power
o
0 Address bus 11
I Program select
I
0 Address bus 12
0 Address bus 13
o Address bus 1
o Bank O
Address bus 2
o
I
O I Address bus
Description
3
A-35