Samsung SCR-3232, Service Manual

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Main Components Block Diagram and Pin Descriptions
•
KS88C4400 MICROCONTROLLER
P0.2/A10
80
P0.3/A11
79
P0.4/A12
78
P0.5/A13
77
P0.6/A14
76
P0.7/A15
75
V
DD1
(int.)
74
P1.0/AD0
73
P1.1/AD1
72
P1.2/AD2
71
P1.3/AD3
70
P1.4/AD4
69
P1.5/AD5
68
P1.6/AD6
67
P1.7/AD7
66
EA
65
1 P0.1/A9
2 P0.0/A8
3
P5.7
4 P5.6
5 P5.5
6 P5.4
7 P5.3
8 P5.2
9 P5.1
10 P5.0
11
V
DD2
(ext.)
12
P2.7/TB
13
P2.6/TA
14 PM
15 DR
16 P2.3/DM
17 P2.2/DW
18
P2.1/DS
19
P2.0/AS
20 PxD
21
TxD
22
PWM1
23 PWM0
24 P3.0/TCCK/INT0
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
P3.1/TDCK/INT1 P3.2/TCG/INT2 P3.3/TDG/INT3 P3.4 P3.5 P3.6/CAP P3.7/WAIT V
SS2
(ext.)
P4.0/INT4 P4.1/INT5 P4.2/INT6 P4.3/INT7 P4.4/INT8 P4.5/INT9 P4.6/INT10 P4.7/INT11
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41 RESET
NC
NC
V
SS1
(int.)
X
OUT
X
IN
P6.0
P6.1
P6.2
P6.3
P6.4
P6.5
P6.6
P6.7
P7.7/ADC7
P7.6/ADC6
P7.5/ADC5
P7.4/ADC4
P7.3/ADC3
AV
SS
P7.2/ADC2
P7.1/ADC1
AV
REF
P7.0/ADC0
KS88C4400
80-QFP
(TOP VIEW)
EXTERNAL ADDRESS/DATA BUS
P0.0-P0.7
(A8-A15)
P1.0-P1.7
(AD0-AD7) P2.0-P2.7
PORT A PORT AD PORT C
(AS, DS, DW, DM, DR, PM)
SAM8 BUS
RESET
EA
P2.6
P2.7
X
IN
X
OUT
PORT2
MAIN
OSC
TA
TB
TCCK
TDCK
TCG
TDG
TIMERS
A and B
TIMERS
C and D
SERIAL
PORT
RxD
TxD
AV
SS
AV
REF
A/D
CONVERTER
ADC0/P7.0-
ADC7/P7.7
SAM8 BUS
V
DD1
(INTERNAL)
V
SS1
(INTERNAL)
V
DD2
(EXTERNAL)
V
SS2
(EXTERNAL)
PWM/
CAPTURE
MODULE
PWM0 PWM1
CAPTURE
(P3.6)
P6.0-P6.7
1040-BYTE
REGISTER FILE
16-KB ROM
SAM8 CPU
PORT I/O & INTERRUPT
CONTROL
PORT 3
PORT 4
PORT 5
PORT 6
P5.4-P5.7
P5.0-P5.3
P4.0-P4.7
P3.0-P3.7
4 4 4 4
4
4