Table A-4. CN5 Pin Assignm ents
Pin No. Signal Name I/O Description
1Vss —Ground
2D0 I/O Data bus bit 0
3D16 I/O Data bus bit 16
4D1 I/O Data bus bit 1
5D17 I/O Data bus bit 17
6D2 I/O Data bus bit 2
7D18 I/O Data bus bit 18
8D3 I/O Data bus bit 3
9D19 I/O Data bus bit 19
10 Vcc —+5 VDC
11 RD ORead strobe
12 A0 OAddress bit 0
13 A1 OAddress bit 1
14 A2 OAddress bit 2
15 A3 OAddress bit 3
16 A4 OAddress bit 4
17 A5 OAddress bit 5
18 A6 OAddress bit 6
19 A10 OAddress 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 OAddress bit 7
29 A19 OAddress bit 19
30 Vcc —+5 VDC
31 A8 OAddress bit 8
32 A9 OAddress bit 9
33 A20 OAddress bit 20
34 EEP OChip select
35 RESET OReset signal
36 A21 OAddress bit 21
37 A22 OAddress bit 22
38 A23 OAddress bit 23
39 Vss —Ground
40 A11 OAddress bit 11
41 A13 OAddress bit 13
42 A14 OAddress bit 14
43 A12 OAddress bit 12
44 CS0 OChip select
45 CS1 OChip select
46 A18 OAddress bit 18
47 WR OWrite enable
48 A17 OAddress bit 17
49 D8 I/O Data bus bit 8
EPL-5500 Service Manual Appendix
Rev. A A-7