Epson EPL-N1200 Service Manual - Page 138

Table A-4. CN3 Pin Assignments

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EPL-N1200 Service Manual Table A-4. CN3 Pin Assignments Pin No. Signal Name I/O Description 1,39,72 2 3 4 5 6 7 8 9 10,30,59 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 31 32 33 34 35 36 37 38 40 41 42 43 44 45 46 47 48 49 Vss D0 D16 D1 D17 D2 D18 D3 D19 Vcc RD A0 A1 A2 A3 A4 A5 A6 A10 D4 D20 D5 D21 D6 D22 D7 D23 A7 A19 A8 A9 A20 EEP RESET A21 A22 A23 A11 A13 A14 A12 CS0 CS1 A18 WR A17 D8 - Ground I/O Data bus bit 0 I/O Data bus bit 16 I/O Data bus bit 1 I/O Data bus bit 17 I/O Data bus bit 2 I/O Data bus bit 18 I/O Data bus bit 3 I/O Data bus bit 19 - +5 VDC O Read signal O Memory address bit 0 O Memory address bit 1 O Memory address bit 2 O Memory address bit 3 O Memory address bit 4 O Memory address bit 5 O Memory address bit 6 O Memory address bit 10 I/O Data bus bit 4 I/O Data bus bit 20 I/O Data bus bit 5 I/O Data bus bit 21 I/O Data bus bit 6 I/O Data bus bit 22 I/O Data bus bit 7 I/O Data bus bit 23 O Memory address bit 7 O Memory address bit 19 O Memory address bit 8 O Memory address bit 9 O Memory address bit 20 O +5 VDC - Reset O Memory address bit 21 O Memory address bit 22 O Memory address bit 23 O CAS 0 O CAS 2 O CAS 3 O CAS 1 O RAS 0 O RAS 1 - Memory address bit 18 O Write enable O Memory address bit 17 I/O Data bus bit 8 Appendix A Rev. A A-7

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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