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Appendix Advanced Technical Information
Hippo DCA2 User’s Manual
31
A.3
I/O Extension Pinout
A.3i
8-Bit ISA Pinout
Ground
GND
B1
A1
-I/O CHCK
I
O
RSTDRV
B2
A2
SD7
I/O
Power
+5 VDC
B3
A3
SD6
I/O
I
IRQ9
B4
A4
SD5
I/O
Power
-5 VDC
B5
A5
SD4
I/O
I
DRQ2
B6
A6
SD3
I/O
Power
-12 VDC
B7
A7
SD2
I/O
I
OWS
B8
A8
SD1
I/O
Power
+12 VDC
B9
A9
SD0
I/O
Ground
GND
B10
A10
-I/O CHRDY
I
O
-SMEMW
B11
A11
AEN
O
O
-SMEMR
B12
A12
SA19
I/O
I/O
-IOW
B13
A13
SA18
I/O
I/O
-IOR
B14
A14
SA17
I/O
O
-DACK3
B15
A15
SA16
I/O
I
DRQ3
B16
A16
SA15
I/O
O
-DACK1
B17
A17
SA14
I/O
I
DRQ1
B18
A18
SA13
I/O
I/O
-Ref
B19
A19
SA12
I/O
O
CLK
B20
A20
SA11
I/O
I
IRQ7
B21
A21
SA10
I/O
I
IRQ6
B22
A22
SA9
I/O
I
IRQ5
B23
A23
SA8
I/O
I
IRQ4
B24
A24
SA7
I/O
I
IRQ3
B25
A25
SA6
I/O
O
-DACK2
B26
A26
SA5
I/O
O
T/C
B27
A27
SA4
I/O
O
BALE
B28
A28
SA3
I/O
Power
+5 VDC
B29
A29
SA2
I/O
O
OSC
B30
A30
SA1
I/O
Ground
GND
B31
A31
SA0
I/O
A.3ii 16-Bit ISA Extension Pinout
I
-MEMCS16
D1
C1
-BHE
I/O
I
-I/OCS16
D2
C2
LA23
I/O
I
IRQ10
D3
C3
LA22
I/O
I
IRQ11
D4
C4
LA21
I/O
I
IRQ12
D5
C5
LA20
I/O
I
IRQ15
D6
C6
LA19
I/O
I
IRQ14
D7
C7
LA18
I/O
0
-DACK0
D8
C8
LA17
I/O
I
DRQ0
D9
C9
-MEMR
I/O
0
-DACK5
D10
C10
-MEMW
I/O
I
DRQ5
D11
C11
SD08
I/O
0
-DACK6
D12
C12
SD09
I/O
I
DRQ6
D13
C13
SD10
I/O
0
-DACK7
D14
C14
SD11
I/O
I
DRQ7
D15
C15
SD12
I/O
Power
+5 VDC
D16
C16
SD13
I/O
I
-MASTER
D17
C17
SD14
I/O
Ground
GND
D18
C18
SD15
I/O
A.4
VL-BUS Extension Pinout