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DVR-S60/NX-SW60
IC500 M37903S4CHP (16-bit C-Mos Micro Computer)
Clock input
Clock output
CDSEL
X
X
IN
OUT
Clock Generating
Circuit
Timer TA4 (16)
Timer TA3 (16)
Timer TA2 (16)
RAM
Timer TA1 (16)
2048 bytes
Timer TA0 (16)
P8 (8)
Input/Output
port P8
Note 1: When the external data bus width = 16 bits, this serves as the data bus; when the external data bus width = 8 bit, this serves as the I/O port.
2: According to the register setting, this can serve as the I/O port.
62
DVD P.C.B.
P8
P8
P7
/AN
7
7
Reset input
(0V)
(5V)
(0V)
RESET
Vcc
Vss
MD
MD
0
Central Processing Unit (CPU)
Watchdog Timer
Timer TB2 (16)
converter (8)
Timer TB1 (16)
UART1 (9)
A-D
converter (10)
converter (8)
Timer TB0 (16)
UART0 (9)
P7 (8)
P6 (8)
P5 (8)
Input/Output
Input/Output
Input/Output
Input/Output
port P7
port P6
port P5
75
74
73
72
71
70
69
68
67
66
P10
/A
3
3
76
P10
/A
77
2
2
P10
/A
1
1
78
P10
/A
0
0
79
P8
7
/T
X
D
1
80
P8
/R
D
6
X
1
81
P8
5
/CTS
1
/CLK
1
82
/CTS
/RTS
/INT4
83
4
1
1
P8
/TxD
3
0
84
P8
/RxD
85
2
0
P8
/CTS
/CLK
1
0
0
86
V
CC
87
AV
CC
88
V
REF
89
AV
SS
90
V
SS
91
NMI
92
0
/CTS
0
/RTS
0
/INT
3
93
/AD
/DA
/(INT
)
94
TRG
1
2
P7
6
/AN
6
/DA
0
95
P7
/AN
/(INT
)
96
5
5
4
P7
/AN
/(INT
)
97
4
4
3
P7
/AN
3
3
98
P7
2
/AN
2
99
P7
/AN
1
1
100
1
2
3
4
5
6
7
8
9
10
Reference
External data bus
(0V)
voltage input
width select input
AVss
AVcc
V
NMI
BYTE
1
BEF
Instruction Register (8)
Bus
Interface
Unit
(BIU)
D-A
1
D-A
0
High-order
Low-order
P4 (7)
P3 (2)
Data (8)/P2 (8)
data (8)
Input/
Data bus/
Data bus
port P4
Output
Input/Output
port P3
port P2
(Note 1)
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
P1
49
P1
P1
48
47
P1
46
P1
45
P2
44
P2
43
P2
42
P2
41
P2
40
P2
39
P2
38
P2
37
V
CC
36
X
OUT
35
X
IN
34
V
SS
33
MD0
32
RESET
31
CDSEL
30
BYTE
29
P3
P3
28
27
P3
26
P3
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Read output
Write output
output
CS0
RD
BLW
CS
0
High-order
Middie-order
Low-order
address(8)/P0 (8)
address(8)/P11 (8)
address (8)
Address bus/Input/Output
Address bus
port P0,P11
(Note 2)
3
/D
3
/LA
3
/D
/LA
4
4
4
/D
/LA
5
5
5
6
/D
6
/LA
6
/D
/LA
7
7
7
0
/D
8
/D
1
9
/D
2
10
/D
3
11
/D
4
12
5
/D
13
/D
6
14
/D
7
15
/RDY
0
/RD
1
2
/BLW
/BHW
3
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