Specifications

Multi Slave Product Re£erence Manual
Appendix A
S-lOO
BUS PINOUT
S-100
Active
Bus Pin
MneMonic
State
Source
Notes
-------
--------
--------
------
---- -
01
+8
Volts
Bus
02
+16 Volts
Bus
03
XRDY
High
Slave
Unused
04
VIO-
Low
(OC)
Slave
Vectored
Int
0
05
VI1-
Low
(aC)
Slave
Vectored
Int 1
06
VI2-
Low
(OC)
Slave
Vectored
Int
2
07
VI3-
Low
(OC)
Slave
Vectored
lnt
3
08
VI4-
Low
(OC)
Slave
Vectored
lnt 4
09 VIS-
Low
(OC)
Slave
Vectored
lnt
5
10
VI6-
Low
(OC)
Slave
Vectored
Int
6
11 VI7-
Low
(aC)
Slave
Vectored
lnt
7
12
NMI-
Low
(aC)
Slave
Unused
13
PWRFAIL*
Low
Bus
Unused
14 TMA3-
Low
(OC)
Maater
Unused
15
A18
High
Master
Unused
16
A16
High
Maater
Unused
17
A17
High
Haster
Unused
18
SDSB-
Low
(aC)
Maater
Unused
19
COSB-
Low
(OC)
Master
Unused
20
GND
BUB
21
Unused
22
ADSB-
Low
(OC)
Master
Unused
23
OODSB-
Low
(OC)
Haster
Unused
24
phi
High
Haater
Unused
25
pSTVAL-
Low
Master
Unused
26
pHLDA
High
Haater
Unused
27
Unused
28
Unused
29
A05
High
Master
Address
bit
5
30 A04
High
Haater
Address bit 4
31
A03
High
Master
Address
bit 3
32
A15
High
Master
Address bit
15
33
A12
High
Master
Address
bit 12
34
A09
High
Maater
Unused
35
001
High
Master
Data
Out
bit 1
DATAl
High
MIS
Unused 1
36
000
High
Haster
Data
Out bit 0
(LSB)
DATAO
High
HIS
Unused
37
AlO
High
Master
Unused
38
004
High
Haater
Data
Out
bit
4
DATA4
High
HIS
Unused
39
D05
High
Master
Data
Out
bit
5
DATA5
High
MIS
Unused
40
006
High
Master
Data Out bit
6
DATA6
High
HIS
Unused
41
D12
High
Slave
Data
In
Bit 2
DATA10
High
MIS
Unused
42
D13
High
Slave
Data
In
bit 3
DATAl1
High
MIS
Unused
S-100
Bus
Pinout
Page
A-l