Pc 104 bus – BECKHOFF CX1000 User Manual
Page 17
Product Overview
Embedded PC
15
PC 104 Bus
The PC 104 bus is a standerdised bus with 104ISA signals for compact embedded systems.
For the functionality of the CX1000 modules eight further signals have been added ( here marked with color).
Pin assignment of 16 bit PC 104 bus:
Pin
Number
J1/P1
Row A
J1/P1
Row B
J1/P1
Row C
J1/P1
Row D
0
--
--
GND
GND
1
IOCHCHK*
GND
SBHE*
MEMCS16*
2
SD7
RESETDRV
LA23
IOCS16*
3
SD6
+5V
LA22
IRQ10
4
SD5
IRQ9
LA21
IRQ11
5
SD4
-5V
LA20
IRQ12
6
SD3
DRQ2
LA19
IRQ13
7
SD2
-12V
LA18
IRQ14
8
SD1
ENDXFR*
LA17
DACK0*
9
SD0
+12V
MEMR*
DRQ0
10
IOCHRDY
(KEY)²
MEMW*
DACK5*
11
AEN
SMEMW*
SD8
DRQ5
12
SA19
SMEMR*
SD9
DACK6*
13
SA18
IOW*
SD10
DRQ6
14
SA17
IOR*
SD11
DACK7*
15
SA16
DACK3*
SD12
DRQ7
16
SA15
DRQ3
SD13
+5V
17
SA14
DACK1*
SD14
MASTER*
18
SA13
DRQ1
SD15
GND
19
SA12
REFRESH*
(KEY)²
GND
20
SA11
SYSCLK
--
--
21
SA10
IRQ7
--
--
22
SA9
IRQ6
--
--
23
SA8
IRQ5
--
--
24
SA7
IRQ4
--
--
25
SA6
IRQ3
--
--
26
SA5
DACK2*
--
--
27
SA4
TC
--
--
28
SA3
BALE
--
--
29
SA2
+5V
--
--
30
SA1
OSC
--
--
31
SA0
GND
--
--
32
GND
GND
--
--