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System Configuration and Connectors 2–7
AlphaPC 164SX Connector Pinouts
B15 Gnd B16 CLK B17 Gnd B18 REQ#
B19 Vdd B20 AD[31] B21 AD[29] B22 Gnd
B23 AD[27] B24 AD[25] B25 +3V B26 C/BE#[3]
B27 AD[23] B28 Gnd B29 AD[21] B30 AD[19]
B31 +3V B32 AD[17] B33 C/BE#[2] B34 Gnd
B35 IRDY# B36 +3V B37 DEVSEL# B38 Gnd
B39 LOCK# B40 PERR# B41 +3V B42 SERR#
B43 +3V B44 C/BE#[1] B45 AD[14] B46 Gnd
B47 AD[12] B48 AD[10] B49 Gnd B50 Not used
B51 Not used B52 AD[08] B53 AD[07] B54 +3V
B55 AD[05] B56 AD[03] B57 Gnd B58 AD[01]
B59 Vdd B60 ACK64# B61 Vdd B62 Vdd
64-Bit PCI Connectors Only (J18, J19)
A63 Gnd A64 C/BE#[7] A65 C/BE#[5] A66 Vdd
A67 PAR64 A68 D[62] A69 Gnd A70 D[60]
A71 D[58] A72 Gnd A73 D[56] A74 D[54]
A75 Vdd A76 D[52] A77 D[50] A78 Gnd
A79 D[48] A80 D[46] A81 Gnd A82 D[44]
A83 D[42] A84 Vdd A85 D[40] A86 D[38]
A87 Gnd A88 D[36] A89 D[34] A90 Gnd
A91 D[32] A92 —A93Gnd A94 —
B63 — B64 Gnd B65 C/BE#[6] B66 C/BE#[4]
B67 Gnd B68 D[63] B69 D[61] B70 Vdd
B71 D[59] B72 D[57] B73 Gnd B74 D[55]
B75 D[53] B76 Gnd B77 D[51] B78 D[49]
B79 Vdd B80 D[47] B81 D[45] B82 Gnd
B83 D[43] B84 D[41] B85 Gnd B86 D[39]
B87 D[37] B88 Vdd B89 D[35] B90 D[33]
B91 Gnd B92 — B93 — B94 Gnd
Table 2–2 PCI Bus Connector Pinouts
(Sheet 2 of 2)
Pin Signal Pin Signal Pin Signal Pin Signal