Sanyo DC-X8CT - Page 50

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IC BLOCK DIAGRAM & DESCRIPTION
ROM
RAN
P4(8)
P1(8)P0(8) P2(8)
Timer 1(8)
Timer 2(8)
Timer 3(8)
Timer 4(8)
Timer 5(8)
Timer 6(8)
3938
P4 4 /INT 4
P4 5 /INT 1 /ZCR
P4
7 /T3 OUT
P4 6 /T1 OUT
P4 3 /INT 3
P4 2 /INT 2
P4 1
P4 0 /INT 0
AV
SS
V REF
27
28
29
30 31
32
33
34
P5(8)
11
12 13
14
17
18
15
16
P6(8)
19
20
21
22 23
24
25
26
P7(8)
1
2
3
45
6
7
99
100
8
P8(8)
81
82
83
84 85
86
87
88
P9(8)
73
74
75
76 77
78
79
80
48
47
46
45 4435 984091
43
42
41
56
55
54
53 52
51
50
49
64
63
62
61 60
59
58
57
PA(8)
89
90
92
93 94 95 96
97
P3 0 /SEG 24
P3 1 /SEG 25
P3 2 /SEG 26
P3 3 /SEG 27
PB(4)
10
36 37
P3 4 /SEG 28
P3 5 /SEG 29
P3 6 /SEG 30
P3 7 /SEG 31
P7 7 /AN 7
P8 7 /SEG 15
P8 6 /SEG 14
P8 5 /SEG 13
P8 4 /SEG 12
P8 3 /SEG 11
P8 2 /SEG 10
P8 1 /SEG 9
P8 0 /SEG 8
P9 7 /SEG 23
P9 6 /SEG 22
P9 5 /SEG 21
P9 4 /SEG 20
P9 3 /SEG 19
P9 2 /SEG 18
P9 1 /SEG 17
P9 0 /SEG 16
PA 7 /SEG 7
PA 6 /SEG 6
PA 5 /SEG 5
PA 4 /SEG 4
PB 2 /DA
9
PB 3
PB 1 /X CIN
PB 0 /X COUT
PA 3 /SEG 3
PA 2 /SEG 2
PA 1 /SEG 1
PA 0 /SEG 0
P7 6 /AN 6
P7 5 /AN 5
P7 4 /AN 4
P7 3 /AN 3
P7 2 /AN 2
P7 1 /AN 1
P7 0 /AN 0
P3(8)
65
66
67
68 69
70 71
72
S I/O1(8) S I/O2(8)
S I/O3(8)
A-D
converter (8)
D-A
converter (8)
Local data
bus
T1
OUT
T3
OUT
PWM
CNTR
0
CNTR
1
A
X
Y
S
PC
L
PC
H
PS
CPU
Ciock generating
circuit
X
CIN
Sub-clock
input
X
COUT
Sub-clock
input
X COUT
X CIN
16
Zero cross
detection circuit
Interruqt interval
determination
circuit
INT 2
INT 3, INT 4
INT 1 /
ZCR
SI/O
automatic
transfer
controller
SI/O
automatic
transfer RAM
controller
SI/O
automatic
display RAM
controller
FLD
automatic
display
controller
Data
P5 7 /S RDY3
/AN 15
P5 6 /S CLK3 /AN 14
P5 5 /S OYT3 /AN 13
P5 4 /S IN3 /AN 12
P5 3 /S RDY2 /AN 11
P5 2 /S CLK2 /AN 10
P5 1 /S OUT2 /AN 9
P5 0 /S IN2 /AN 8
P6 7 /S RDY1 /CS/S CLK12
P6 6 /S CLK11
P6 5 /S OUT1
P6 4 /S IN1
P6 3 /CNTR 1
P6 2 /CNTR 0
P6 1 /PWM
P6
0
X OUT
X IN
RESET
V CC
V SS
V EE
P0 0 /SEG 32 /DIG 0
P0 1 /SEG 33 /DIG 1
P0 2 /SEG 34 /DIG 2
P0 3 /SEG 35 /DIG 3
P0 4 /SEG 36 /DIG 4
P0 5 /SEG 37 /DIG 5
P0 6 /SEG 38 /DIG 6
P0 7 /SEG 39 /DIG 7
P1 0 /SEG 40 /DIG 8
P1 1 /SEG 41 /DIG 9
P1 2 /DIG 10
P1 3 /DIG 11
P1 4 /DIG 12
P1 5 /DIG 13
P1 6 /DIG 14
P1 7 /DIG 15
P2 0 /DIG 16
P2 1 /DIG 17
P2 2 /DIG 18
P2 3 /DIG 19
P2 4
P2 5
P2 6
P2 7
IC531 M38197MAA-636FP (Single Chip 8-bit C Mos)