Service Manual
IC9 SMPC
IC
CUSTOM
CHIP
SMPC
QFP
Parts No.: 315-5744
•Top
View
64
52
19
20
32
• Description
No.
1/0
Name
1 R70
-
2
R71
3
R72
1!0
4
R73
5
R50
6
R51
I
7
R52
8
R53
9
-
TEST
10
OSCl
I!O
11
OSC2
12
-
GND
13
X2
1!0
14
XI
15
RESET
16
-
vee
17
I cs
18
I
R/W
19
AI
20
A2
21
A3
22
I/0
A4
23
AS
24
A6
25
DBO
26
DBI
27
DB2
28
DB3
29
l!O
DB4
30
DBS
31
DB6
32
DB7
I
51
I
33
Function
Not connected.
Reset control
Jumper configuration input
Not connected
~GND
Clock 3
Ground
Clock 4
Master reset input
Power
Chip select input
Read/write input
Address bus
Data bus
-43-
No.
1/0
33
34
35
36
I/0
37
38
39
40
41
42
43
I/0
44
45
46
47
I
48
I
49
50
l/0
51
52
-
53
54
55
56
57
1/0
58
59
60
61
62
1/0
63
-
64
Name
Function
PIOOA
Pl01A
PI02A
PI03A
Control pad
PI04A
PI OSA
PI06A
PIOOB
PIOlB
PI02B
PI03B
Control pad
PI04B
PIOSB
PI06B
EXL
Input
INTO/D13
Input
INT2!R01
Backup RAM reset control
DO
Reset control
Dl
D2
Not connected.
D3
D4
DS
D6
Reset control
D7
D8
D9
DlO
R60
Reset control
R61
R62
Not connected.
R63