Table A-4. CN3 Pin Assignments
Pin No.
Signal Name
I/O
Description
1,39,72
Vss
—
Ground
2
D0
I/O
Data bus bit 0
3
D16
I/O
Data bus bit 16
4
D1
I/O
Data bus bit 1
5
D17
I/O
Data bus bit 17
6
D2
I/O
Data bus bit 2
7
D18
I/O
Data bus bit 18
8
D3
I/O
Data bus bit 3
9
D19
I/O
Data bus bit 19
10,30,59
Vcc
—
+5 VDC
11
RD
O
Read signal
12
A0
O
Memory address bit 0
13
A1
O
Memory address bit 1
14
A2
O
Memory address bit 2
15
A3
O
Memory address bit 3
16
A4
O
Memory address bit 4
17
A5
O
Memory address bit 5
18
A6
O
Memory address bit 6
19
A10
O
Memory address bit 10
20
D4
I/O
Data bus bit 4
21
D20
I/O
Data bus bit 20
22
D5
I/O
Data bus bit 5
23
D21
I/O
Data bus bit 21
24
D6
I/O
Data bus bit 6
25
D22
I/O
Data bus bit 22
26
D7
I/O
Data bus bit 7
27
D23
I/O
Data bus bit 23
28
A7
O
Memory address bit 7
29
A19
O
Memory address bit 19
31
A8
O
Memory address bit 8
32
A9
O
Memory address bit 9
33
A20
O
Memory address bit 20
34
EEP
O
+5 VDC
35
RESET
—
Reset
36
A21
O
Memory address bit 21
37
A22
O
Memory address bit 22
38
A23
O
Memory address bit 23
40
A11
O
CAS 0
41
A13
O
CAS 2
42
A14
O
CAS 3
43
A12
O
CAS 1
44
CS0
O
RAS 0
45
CS1
O
RAS 1
46
A18
—
Memory address bit 18
47
WR
O
Write enable
48
A17
O
Memory address bit 17
49
D8
I/O
Data bus bit 8
EPL-N1200 Service Manual
Appendix A
Rev. A
A-7
Summary of Contents for EPL-N1200
Page 1: ...EPSON TERMINAL PRINTER EPL N1200 SERVICE MANUAL EPSON 4006838 ...
Page 8: ...REVISION SHEET I Revision I Issue Date Revision Page Rev A December 9 1996 1st issue vii ...
Page 111: ...Chapter 4 Adjustment No adjustment is required in this product ...
Page 127: ...6 ii Rev A ...
Page 133: ...Figure A 2 Engine Section Cable Connection Appendix A EPL N1200 Service Manual A 2 Rev A ...
