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Intel 87C196CB User Manual

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A-3
SIGNAL DESCRIPTIONS
Figure A-2. 87C196CB 100-pin QFP Package
A.2 SIGNAL DESCRIPTIONS
Table A-2 defines the columns used in Table A-3, which describes the signals.
P5.7 / BUSWIDTH
P5.2 / WR# / WRL# / SLPWR#
P5.5 / BHE# / WRH#
P5.3 / RD# / SLPRD#
A20 / EPORT.4
A21 / EPORT.5
A22 / EPORT.6
V
PP
A23 / EPORT.7
P5.0 / ADV# / ALE / SLPALE
P5.1 / INST / SLPCS#
P5.6 / READY
P5.4 / SLPINT
A19 / EPORT.3
NC
V
CC
NC
V
SS1
V
SS
NC
RXCAN
TXCAN
XTAL1
XTAL2
NC
P6.7 / SD1
P6.6 / SC1
P6.5 / SD0
P6.4 / SC0
V
CC
2.
T
R
O
P
E / 
81
A
1
S
U
B
P / 
1
PL
S / 
1.
3
P / 
1
D
A
2
S
U
B
P / 
2
PL
S / 
2.
3
P / 
2
D
A
3
S
U
B
P / 
3
PL
S / 
3.
3
P / 
3
D
A
4
S
U
B
P / 
4
PL
S / 
4.
3
P / 
4
D
A
5
S
U
B
P / 
5
PL
S / 
5.
3
P / 
5
D
A
6
S
U
B
P / 
6
PL
S / 
6.
3
P / 
6
D
A
7
S
U
B
P / 
7
PL
S / 
7.
3
P / 
7
D
A V
C
C
V
1
S
S
8
S
U
B
P / 
0.
4
P / 
8
D
A
9
S
U
B
P / 
1.
4
P / 
9
D
A
01
S
U
B
P / 
2.
4
P / 
01
D
A
11
S
U
B
P / 
3.
4
P / 
11
D
A
21
S
U
B
P / 
4.
4
P / 
21
D
A
31
S
U
B
P / 
5.
4
P / 
31
D
A
41
S
U
B
P / 
6.
4
P / 
41
D
A
51
S
U
B
P / 
7.
4
P / 
51
D
A
0.
T
R
O
P
E / 
61
A
1.
T
R
O
P
E / 
71
A
NC
AD0 / P3.0 / SLP0 / PBUS0
RESET#
NMI
EA#
V
SS1
NC
V
CC
NC
V
SS
NC
NC
NC
NC
P2.0 / TXD / PVER
P2.1 / RXD / PALE#
P2.2 / EXTINT / PROG#
P2.3 / BREQ#
NC
P2.4 / INTOUT# / AINC#
P2.5 / HOLD#
P2.6 / HLDA# / CPVER / ONCE#
P2.7 / CLKOUT / PACT#
V
CC
V
SS1
P0.0 / ACH0
P0.1 / ACH1
P0.2 / ACH2
P0.3 / ACH3
P0.4 / ACH4 / PMODE.0
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
xx87C196CB
View of component as
mounted on PC board
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1.
E
D
O
M
P / 
5
H
C
A / 
5.
0
P
2.
E
D
O
M
P / 
6
H
C
A / 
6.
0
P
3.
E
D
O
M
P / 
7
H
C
A / 
7.
0
P
D
N
G
N
A
V
F
E
R
V
C
C
V
1
S
S
7
A
P
E / 
7.
1
P
6
A
P
E / 
6.
1
P
5
A
P
E / 
5.
1
P
4
A
P
E / 
4.
1
P
3
A
P
E / 
3.
1
P
RI
D2
T / 
2
A
P
E / 
2.
1
P
1
A
P
E / 
1.
1
P
KL
C2
T / 
0
A
P
E / 
0.
1
P
0
P
M
O
C / 
8
A
P
E / 
0.
6
P
1
P
M
O
C / 
9
A
P
E / 
1.
6
P
KL
C1
T / 
2.
6
P
RI
D1
T / 
3.
6
P
N
EL
L
P
13 23 33 43 53 63 73 83 93 04 14 24 34 44 54 64 74 84 94 05
00
1
99 89 79 69 59 49 39 29 19 09 98 88 78 68 58 48 38 28 18
A3171-02