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Specifications
super
MOPS
pro
Copyright
JUMP
tec
Industrielle Computertechnik AG
Page: 78 of 93
PC/104-Bus Specification of
super
MOPS
Specification XT Bus X1, A1 - A32
Pin
Signal Name
Function
CPU Module
I/O Modules
Type
Pullu
p
Iol
Ioh
C
Type
Pullu
p
Iol
Ioh
C
A1
/IOCHCK
I/O Channel Check
I
1K
OC
12mA
120pF
A2
SD7
Data Bit 7
I/O
4K7
1)
12mA
6mA
120pF
I/O
12mA
6mA
120pF
A3
SD6
Data Bit 6
I/O
4K7
1)
12mA
6mA
120pF
I/O
12mA
6mA
120pF
A4
SD5
Data Bit 5
I/O
4K7
1)
12mA
6mA
120pF
I/O
12mA
6mA
120pF
A5
SD4
Data Bit 4
I/O
4K7
1)
12mA
6mA
120pF
I/O
12mA
6mA
120pF
A6
SD3
Data Bit 3
I/O
4K7
1)
12mA
6mA
120pF
I/O
12mA
6mA
120pF
A7
SD2
Data Bit 2
I/O
4K7
1)
12mA
6mA
120pF
I/O
12mA
6mA
120pF
A8
SD1
Data Bit 4
I/O
4K7
1)
12mA
6mA
120pF
I/O
12mA
6mA
120pF
A9
SD0
Data Bit 3
I/O
4K7
1)
12mA
6mA
120pF
I/O
12mA
6mA
120pF
A10
IOCHRDY
I/O Channel Ready
I
1K
OC
12mA
120pF
A11
AEN
Address Enable
O
12mA
6mA
120pF
I
A12
SA19
Address Bit 19
O
12mA
6mA
120pF
I
A13
SA18
Address Bit 18
O
12mA
6mA
120pF
I
A14
SA17
Address Bit 17
O
12mA
6mA
120pF
I
A15
SA16
Address Bit 16
O
12mA
6mA
120pF
I
A16
SA15
Address Bit 15
O
12mA
6mA
120pF
I
A17
SA14
Address Bit 14
O
12mA
6mA
120pF
I
A18
SA13
Address Bit 13
O
12mA
6mA
120pF
I
A19
SA12
Address Bit 12
O
12mA
6mA
120pF
I
A20
SA11
Address Bit 11
O
12mA
6mA
120pF
I
A21
SA10
Address Bit 10
O
12mA
6mA
120pF
I
A22
SA9
Address Bit 9
O
12mA
6mA
120pF
I
A23
SA8
Address Bit 8
O
12mA
6mA
120pF
I
A24
SA7
Address Bit 7
O
12mA
6mA
120pF
I
A25
SA6
Address Bit 6
O
12mA
6mA
120pF
I
A26
SA5
Address Bit 5
O
12mA
6mA
120pF
I
A27
SA4
Address Bit 4
O
12mA
6mA
120pF
I
A28
SA3
Address Bit 3
O
12mA
6mA
120pF
I
A29
SA2
Address Bit 2
O
12mA
6mA
120pF
I
A30
SA1
Address Bit 1
O
12mA
6mA
120pF
I
A31
SA0
Address Bit 0
O
12mA
6mA
120pF
I
A32
GND
(Added) Ground
I = input O = output I/O = bidirectional signal OC = open collector output
1)
=
the pullups on these signal lines have lower values then specified by the PC/104-
consortium
the changes have been made to improve timing characteristics for certain bus
architectures