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3.9 PC/104 Connection Bus
WAFER-4821 PC/104 expansion bus enables you to attach any kind of PC/104
modules. The PC/104 bus has already become the industrial embedded PC bus
standard, so you can easily install over thousands of PC/104 modules from
hundreds of vendors in the world. There are two PC/104 connectors on this board:
PC/104-64 and PC/104-40.
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CN19: PC/104-40 Connector
PIN Description PIN Description
1 GND 21 GND
2 MCS16# 22 SBHE#
3 IOCS16# 23 LA23
4 IRQ10 24 LA22
5 IRQ11 25 LA21
6 IRQ12 26 LA20
7 IRQ15 27 LA19
8 IRQ14 28 LA18
9 DACK0# 29 AL17
10 DRQ0 30 MEMR#
11 DACK5# 31 MEMW#
12 DRQ5 32 SD8
13 DACK6# 33 SD9
14 DRQ6 34 SD10
15 DACK7# 35 SD11
16 DRQ7 36 SD12
17 VCC 37 SD13
18 MASTER# 38 SD14
19 GND 39 SD15
20 GND 40 GND