Local Bus Expansion Connector (J4); Table 4-4. J4 Local Pci Expansion Connector - Motorola MCP750 Installation And Use Manual

Connector Pin Assignments

Local Bus Expansion Connector (J4)

4
ROW A
25 AD36
24 AD40
23 AD45
22 AD49
21 AD53
20 AD57
19 AD61
18 CBE4#
17 REQ64#
16 AD2
15 AD6
12-14
11 AD9
10 AD13
9 PAR
8 STOP#
7 FRAME#
6 AD18
5 AD21
4 CBE3#
3 AD28
2 GNT#
4-6
Connector J4 is a 110 pin AMP Z-pack 2mm hard metric type A connector
with keying for +3.3V or +5V. This connector routes the 64-bit local PCI
bus to the backplane for expansion. The pin assignments for J4 are as
follows (the outer row F is assigned and used as ground pins but is not
shown in the table):

Table 4-4. J4 Local PCI Expansion Connector

ROW B
AD35
AD39
AD44
3.3V
AD52
3.3V
AD60
3.3V
CBE7#
3.3V
AD5
AD8
5.0V
CBE1#
5.0V
IRDY#
5.0V
CLK
5.0V
AD27
REQ#
ROW C ROW D
AD34 AD33
AD38 GND
AD43 AD42
AD48 AD47
AD51 GND
AD56 AD55
AD59 GND
PAR64 AD63
CBE6# GND
AD1 AD0
AD4 GND
KEY AREA
CBE0# GND
AD12 AD11
AD15 GND
LOCK# PERR#
TRDY# GND
AD17 AD16
AD20 GND
No Connect AD23
AD26 AD25
AD31 AD30
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ROW E
AD32 25
AD37 24
AD41 23
AD46 22
AD50 21
AD54 20
AD58 19
AD62 18
CBE5# 17
ACK64# 16
AD3 15
12-14
AD7 11
AD10 10
AD14 9
SERR# 8
DEVSEL# 7
CBE2# 6
AD19 5
AD22 4
AD24 3
AD29 2