Appendix A. Connector-pin assignments 37
32-bit PCI connectors
54 Ground N/A 110 VDD N/A 166 SA1 O
55 MD16 I/O 111 CAS# N/A 167 SA0 O
56 MD17 I/O 112 DQMB4# I 168 VDD N/A
Table 21. System memory connector pin input/output
Pin Signal name I/O Pin Signal name I/O Pin Signal name I/O
Table 22. PCI connector-pin assignments
Pin Signal I/O Pin Signal I/O
A1 TRST# O B1 −12 V dc
A2 +12 V dc B2 TCK O
A3 TMS O B3 Ground
A4 TDI O B4 TDO I
A5 +5 V dc B5 +5 V dc
A6 INTA# I B6 +5 V dc
A7 INTC# I B7 INTB# I
A8 +5 V dc B8 INTD# I
A9 Reserved B9 PRSNT1# I
A10 +5 V dc B10 Reserved
A11 Reserved B11 PRSNT2# I
A12 Ground B12 Ground
A13 Ground B13 Ground
A14 3.3 V AUX B14 3.3 V AUX
A15 RST# O B15 Ground
A16 +5 V dc (I/O) B16 CLK O
A17 GNT# O B17 Ground
A18 Ground B18 REQ# I
A19 PCI PME B19 +5 V dc
A20 Address/data 30 I/O B20 Address/data 31 I/O
A21 +3.3 V dc B21 Address/data 29 I/O
A22 Address/data 28 I/O B22 Ground
A23 Address/data 26 I/O B23 Address/data 27 I/O
A24 Ground I/O B24 Address/data 25
B2
A1
A2
B62
A62
B1