PC/104 (ISA) Expansion Connector J21/J22
http://www.motorola.com/computer/literature
6-25
6
PC/104 (ISA) Expansion Connector J21/J22
Two connectors, a 2
×
20-pin (J21) and a 2
×
32-pin (J22) socket, make up
the PC/104 ISA bus expansion connector. The pin assignments for the
PC/104 connector are listed in the following table.
Table 6-15. PC/104 Expansion Connector Pin Assignments
Pin #
Row A
Row B
Row C
Row D
1
IOCHK#
GND
GND
GND
2
SD7
RSTISA
SBHE#
MEMCS16#
3
SD6
+5V
LA23
IOCS16#
4
SD5
INT9
LA22
INT10
5
SD4
−
5V
LA21
INT11
6
SD3
DRQ2
LA20
INT12
7
SD2
−
12V
LA19
INT15
8
SD1
ENDXFR#
LA18
INT14
9
SD0
+12V
LA17
DACK0#
10
IOCHRDY
Key
MEMR#
DRQ0
11
AEN
SMEMW#
MEMW#
DACK5#
12
SA19
SMEMR#
SD8
DRQ5
13
SA18
IOW#
SD9
DACK6#
14
SA17
IOR#
SD10
DRQ6
15
SA16
DACK3#
SD11
DACK7#
16
SA15
DRQ3
SD12
DRQ7
17
SA14
DACK1#
SD13
+5V
18
SA13
DRQ1
SD14
MASTER#
19
SA12
REFRESH#
SD15
GND
20
SA11
ISACLK
Key
GND
21
SA10
INT7
Summary of Contents for MBX Series
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