IBM PC 100, Technical Manual

Page: 27 / 58

Chapter 2. Connectors and Jumpers
PCI Connectors
PC 100 and PC 300 computers have 124-pin peripheral component interconnect (PCI) connectors.
Personal computers with PCI riser cards support the 32-bit, 5-V dc, local-bus signalling environment that is
defined in the
PCI Local Bus Specification. The following figure shows the signal and pin assignments for
the PCI connectors.
Figure 16 (Page 1 of 2). PCI Connector Signal and Pin Assignments
Pin Signal Pin Signal
1A TRST# 1B
−
12 V dc
2A
+
12 V dc 2B TCK
3A TMS 3B Ground
4A TDI 4B TDO
5A
+
5 V dc 5B
+
5 V dc
6A INTA# 6B
+
5 V dc
7A INTC# 7B INTB#
8A
+
5 V dc 8B INTD#
9A Reserved 9B PRSNT1#
10A
+
5 V dc (I/O) 10B Reserved
11A Reserved 11B PRSNT2
12A Ground 12B Ground
13A Ground 13B Ground
14A Reserved 14B Reserved
15A RST# 15B Ground
16A
+
5 V dc (I/O) 16B CLK
17A GNT# 17B Ground
18A Ground 18B REQ#
19A Reserved 19B
+
5 V dc (I/O)
20A Address/Data 30 20B Address/Data 31
21A
+
3.3 V dc (not connected)
ñ
21B Address/Data 29
22A Address/Data 28 22B Ground
23A Address/Data 26 23B Address/Data 27
24A Ground 24B Address/Data 25
25A Address/Data 24 25B
+
3.3 V dc (not connected)
ñ
26A IDSEL 26B C/BE 3“#
27A
+
3.3 V dc (not connected)
ñ
27B Address/Data 23
28A Address/Data 22 28B Ground
29A Address/Data 20 29B Address/Data 21
30A Ground 30B Address/Data 19
31A Address/Data 18 31B
+
3.3 V dc (not connected)
ñ
32A Address 16 32B Address/Data 17
33A
+
3.3 V dc (not connected)
ñ
33B C/BE 2“#
34A FRAME# 34B Ground
35A Ground 35B IRDY#
36A TRDY# 36B
+
3.3 V dc (not connected)
ñ
37A Ground 37B DEVSEL#
38A STOP# 38B Ground
39A
+
3.3 V dc (not connected)
ñ
39B LOCK#
40A SDONE 40B PERR#
41A SBO# 41B
+
3.3 V dc (not connected)
ñ
42A Ground 42B SERR#
43A PAR 43B
+
3.3 V dc (not connected)
ñ
44A Address/Data 15 44B C/BE 1“#
45A
+
3.3 V dc (not connected)
ñ
45B Address/Data 14
46A Address/Data 13 46B Ground
47A Address/Data 11 47B Address/Data 12
48A Ground 48B Address/Data 10
49A Address/Data 9 49B Ground
50A Connector key 50B Connector key
51A Connector key 51B Connector key
52A C/BE 0“# 52B Address/Data 8
53A
+
3.3 V dc (not connected)
ñ
53B Address/Data 7
54A Address/Data 6 54B
+
3.3 V dc (not connected)
ñ
Chapter 2. Connectors and Jumpers
19