TME-EPIC-HURPM-R1V5.doc
Rev 1.5
Page 30 of 41
3.20
PC/104 Bus Interface
The PC/104 bus is a modification of the industry standard (ISA) PC bus specified in IEEE P996. The
following table shows the pin assignment of the PC/104 connector.
Note -5 V on the PC/104 connector are not supported on this board.
PC/104 Bus Connector
Pin
A
B
1
IOCHCK# GND
2
D7
RESET
3
D6
+5V
4
D5
IRQ9
5
D4
n.c.
6
D3
DRQ2
7
D2
-12V
Pin
D
C
8
D1
n.c.
0 GND
GND
9 D0
+12V
1 MEMCS16#
SBHE#
10
IOCHRDY n.c.
(KEY)
2 IOCS16# LA23
11
AEN
SMEMW#
3 IRQ10
LA22
12
A19
SMEMR#
4 IRQ11
LA21
13
A18
IOW#
5 IRQ12
LA20
14
A17
IOR#
6 IRQ15
LA19
15
A16
DACK3#
7 IRQ14
LA18
16
A15
DRQ3
8 DACK0# LA17
17
A14
DACK1#
9 DRQ0
MEMR#
18
A13
DRQ1
10 DACK5# MEMW#
19 A12
REFRESH#
11 DRQ5
SD8
20 A11
SYSCLK
12 DACK6# SD9
21 A10
IRQ7
13 DRQ6
SD10
22 A9
IRQ6
14 DACK7# SD11
23 A8
IRQ5
15 DRQ7
SD12
24 A7
IRQ4
16 +5V
SD13
25 A6
IRQ3
17 MASTER# SD14
26 A5
DACK2#
18 GND
SD15
27 A4
TC
19 GND
n.c.
(KEY) 28 A3
BALE
29
A2
+5V
30
A1
OSC
31
A0
GND
32
GND
GND
