Epson LX-810 Technical Manual page 168

This gate array was newly developed for this printer. Its functions are as follows:
1. Parallel l/F
2. Address decoder
3. Control panel LED drive
4. Data address multiplexer
5. PF motor control
6. CR motor control
7. Printhead drive
Figure A-6 shows the E05A30 pin diagram. Table A-6 shows pin functions for the E05A30.
CRC ~ 6
10
8 U S Y O - - - - - 12
PE ~ 13
ERR ~ 14
RESIN O----- 15
I NIT ~ 17
RDYLP ~ 18
R S T O U T O - - - - - 19
STRB ~ 2 0
Al 4 ~ 29
Al 5 ~ 30
ONLLP ~ 31
Figure A-6. E05A30 Pin Diagram
62 ~ HD2
61 ~ HD3
60 ------O HD4
59 ~ HD5
58
57 FIRE
56 ~ DB7
55
54 - - - - o DB5
53 - - - - o DB4
52 ~ DB3
51 ~ DB2
50 - - - - O DB1
49
48 ~ Vss
47 ~ ALE
RAMCS
46
45 ----O~R
44 ~ RD
43 ~ AB7
42 ~ AB6
41 ---'-O AB5
40 - - - - o AB4
39 ~ AB3
38 - - - o AB2
37 ~ AB1
36 ~ ABO
35 ~ PELP
34 ~ ACK
33 ~
A-7
REV.-A