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SCG9864
8-BIT MICROCONTROLLER
Score Concept Semiconductor Ltd.
8
Sept 2000
PIN DESCRIPTIONS
Table 2. Pin Description
Pin
Name
Type
Description
Pad Type
1
P_CLK
I/P
RC Oscillator for the Main System clock
Pad type 5
2
CLK320
O/P
32.768KHz RTC
Pad type 6
3
CLK32I
I/P
32.768KHz RTC
Pad type 6
4
GND
Power
Ground (optional)
5
P0RW0
I/O
Port 0
Pad type 1
6
P0RW1
I/O
Port 0
Pad type 1
7
P0RW2
I/O
Port 0
Pad type 1
8
P0RW3
I/O
Port 0
Pad type 1
9
VDD
Power
Supply voltage
10
P0RW4
I/O
Port 0
Pad type 1
11
P0RW5
I/O
Port 0
Pad type 1
12
P0RW6
I/O
Port 0
Pad type 1
13
P0RW7
I/O
Port 0
Pad type 1
14
GND
Power
Ground (optional)
15
P1RW0
I/O
Port 0
Pad type 1
16
P1RW1
I/O
Port 1
Pad type 1
17
P1RW2
I/O
Port 1
Pad type 1
18
P1RW3
I/O
Port 1
Pad type 1
19
VDD
Power
Supply Voltage (optional)
20
P1RW4
I/O
Port 1
Pad type 1
21
P1RW5
I/O
Port 1
Pad type 1
22
P1RW6
I/O
Port 1
Pad type 1
23
P1RW7
I/O
Port 1
Pad type 1
24
GND
Power
Ground (optional)
25
P2W0
O/P
Port 2
Pad type 2
26
P2W1
O/P
Port 2
Pad type 2
27
P2W2
O/P
Port 2
Pad type 2
28
P2W3
O/P
Port 2
Pad type 2
29
VDD
Power
Supply Voltage (optional)
30
P2W4
O/P
Port 2
Pad type 2
31
P2W5
O/P
Port 2
Pad type 2
32
P2W6
O/P
Port 2
Pad type 2
33
PWMP
O/P
Speaker +
Pad type 2
34
PWMM
O/P
Speaker -
Pad type 2
35
GND
Power
Ground
36
VDD
Power
Supply Voltage
37
TEST
I/P
Test pin, no connection
Pad type 4
38
RESET
I/P
Reset pin
Pad type 3
39
EXT_INT
I/P
External Interrupt pin
Pad type 4
Note:
The Optional pins for VDD and GND can be left open as NC pins.
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