2-12 Chapter 2: Connectors & Jumpers
20
ISA Bus Connector (JISA1)
JISA1 is an ISA slot available on the motherboard for
expansion purposes.
Pin
B
A
D
C
1
GND
IOCHK#
MEMCS16#
SBHE#
2
BRSTDRV
SD7
IOCS16#
LA23
3
+5 V
SD6
IRQ10
LA22
4
IRQ9
SD5
IRQ11
LA21
5
-5 V
SD4
IRQ12
LA20
6
DRQ2
SD3
IRQ15
LA19
7
-12 V
SD2
IRQ14
LA18
8
ZEROWS#
SD1
DACK0#
LA17
9
+12 V
SD0
DRQ0
MEMR#
10
GND
IOCHRDY
DACK5#
MEMW#
11
SMEMW#
AEN
DRQ5
SD8
12
SMEMR#
SA19
DACK6#
SD9
13
IOW#
SA18
DRQ6
SD10
14
IOR#
SA17
DACK7#
SD11
15
DACK3#
SA16
DRQ7
SD12
16
DRQ3
SA15
+5 V
SD13
17
DACK1#
SA14
RMASTER#
SD14
18
DRQ1
SA13
GND
SD15
19 REFRESH#
SA12
20
SYSCLK
SA11
21
IRQ7
SA10
22
IRQ6
SA9
23
IRQ5
SA8
24
IRQ4
SA7
25
IRQ3
SA6
26
DACK2#
SA5
27
TC
SA4
28
BALE
SA3
29
+5 V
SA2
30
OSC1
SA1
31
GND
SA0
Key
Key
Summary of Contents for T3274
Page 1: ...Motherboard User s Guide November 1998 5728892203 Rev 2 T3274 ...
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