Sony BVS-A3232 Maintenance Manual page 82

IC
CXD1095Q (SONY)
C-MOS I/O PORT EXPANDER
—TOP VIEW—
51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
52
53
54
55
56
57
GND
V 2
58 DD
(+5 V)
59
60
61
62
63
64
1 2 3 4 5 6 7 8
PIN PIN
IN OUT SYMBOL IN OUT SYMBOL
No. No.
1 NC 17
2 NC 18
3 PB1 19
4 PB2 20
5 PB3 21
6 PB4 22
7 PB5 23
8 PB6 24
9 PB7 25
10 GND 26
11 PC0 27
12 PC1 28
13 PC2 29
14 PC3 30
15 PC4 31
16 PC5 32
CS RD
54
PA0
55
0 0
PA1
56
0 0
PA2
59
PA3
0 0
60
PA4
0 0
61
PA5
0 0
30 62
D0 PA6
0 0
31 63
D1 PA7
32 0 0
D2
35 64
0 0
D3 PB0
36 3
D4 PB1
0 1
37 4
D5 PB2
0 1
38 5
D6 PB3
0 1
39 6
D7 PB4
0 1
7
PB5
49 8 0 1
PX0 PB6
50 9
0 1
PX1 PB7
52
PX2
0 1
53 11
PX3 PC0
0 1
12
PC1
1 X
46 13
A0 PC2
47 14
0 ; LOW LEVEL
A1 PC3
48 15
1 ; HIGH LEVEL
A2 PC4
16
X ; DON'T CARE
PC5
45 17
HI-Z ; HIGH IMPEDANCE
CS PC6
44 18
RD PC7
43
WR
20
PD0
D0-D7
41 21
RST PD1
CS
40 22
CLR PD2
RD
23
PD3
WR
24
PD4
A0-A2
27
PD5
RST
28
PD6
CLR
29
PD7
PA0-PA7
PB0-PB7
PC0-PC7
PD0-PD7
PX0-PX3
6-4
GND
32
31
30
29
28
27
V 1
DD
26
(+5 V)
GND 25
24
23
22
21
20
GND
9 10 11 12 13 14 15 16 17 18 19
PIN PIN
IN OUT SYMBOL IN OUT SYMBOL
No. No.
PC6 33 NC 49
PC7 34 NC 50
NC 35 D3 51
PD0 36 D4 52
PD1 37 D5 53
PD2 38 D6 54
PD3 39 D7 55
PD4 40 CLR 56
GND 41 RST 57
V 42 GND 58 V
DD (+5 V) DD (+5 V)
PD5 43 WR 59
PD6 44 RD 60
PD7 45 CS 61
D0 46 A0 62
D1 47 A1 63
D2 48 A2 64
WR A2 A1 A0 MODE
1 0 0 0 PORT A DATA BUS
1 0 0 1 PORT B DATA BUS
1 0 1 0 PORT C DATA BUS
1 0 1 1 PORT D DATA BUS
1 1 0 0 PORT X DATA BUS
1 1 0 1
1 1 1 0
1 1 1 1
0 0 0 0 DATA BUS PORT A
0 0 0 1 DATA BUS PORT B
0 0 1 0 DATA BUS PORT C
0 0 1 1 DATA BUS PORT D
0 1 0 0 DATA BUS PORT X
0 1 0 1
0 1 1 0 DATA BUS CTL REG. 1
0 1 1 1 DATA BUS CTL REG. 2
X X X X DATA BUS ; HI-Z
; DATA BUS INPUTS/OUTPUTS
; CHIP SELECT INPUT
; READ STROBE INPUT
; WRITE STROBE INPUT
; ADDRESS INPUT
; RESET INPUT
; CLEAR INPUT
; PORT A INPUTS/OUTPUTS
; PORT B INPUTS/OUTPUTS
; PORT C INPUTS/OUTPUTS
; PORT D INPUTS/OUTPUTS
; PORT X INPUTS/OUTPUTS
D0-D7 8
(DATA BUS)
40
CLR
PX0
PX1 48
A2
47
NC
A1
46
PX2
A0
PX3
43
PA0
WR
44
PA1 RD
45
PA2 CS
41
RST
GND
PA3
PA4
PA5
PA6
PA7
PB0
CXA1432M (SONY)FLAT PACKAGE
CXA1432M-T4
VIDEO SIGNAL CLAMPER
— TOP VIEW —
TP12
14 13 12 11
V NC V
CC
(+5 V) (–5 V)
1 2 3
V E FV TP5
IN OUT IN
CP IN ; CLAMP PULSE INPUT
E OUT ; BUFFER AMP OUTPUT
FV IN ; FLOATING VIDEO SIGNAL INPUT
PEDE ; CLAMP LEVEL DC INPUT
SENS ; CLAMP POINT SIGNAL INPUT
TP5, TP12 ; FOR TEST
V IN ; VIDEO SIGNAL INPUT
V OUT ; VIDEO SIGNAL OUTPUT
1
V IN E. F
3
FV IN
9
PEDE +
8
SENS –
10
CP IN
8 8
LATCH
8 8
LATCH
8 8
LATCH
8 8
LATCH
4 4
LATCH
DATA
SELECT
CONTROL
CP
PEDE SENS
IN
1
E OUT
V IN
10 9 8
EE 3
FV IN
9
PEDE
V OUT
8
SENS
10
CP IN
NC NC
4 5 6 7
V
OUT
+
E. F
SAMPLE
&
HOLD
MODE
SELECTOR
8
PA0-PA7
(PORT A)
8 PB0-PB7
(PORT B)
8
PC0-PC7
(PORT C)
8 PD0-PD7
(PORT D)
4
PX0-PX3
(PORT X)
2
7
2
E OUT
7
V OUT
BVS-A3232/V3232