— 5 —
Pin No.
Terminal
In/Out
Function
1
LEDY0
Out
Not used.
2
LVDD1
In
+5V source
3
LGND2
In
Ground (0V) source
4 ~ 9
LEDX0 ~ LEDX5
Out
Not used.
10
LEDX6
Out
APO(Auto Power Off) signal output ON: "H" OFF: "L"
11
LEDX7
Out
Not used.
12
LVDD2
In
+5V source
13 ~ 27
Not used.
28
GND2
In
Ground (0V) source
29
COSI
In
43.45MHz clock pulse input
30
COSO
Out
43.45MHz clock pulse output
31
VDD
In
+5V source
32
GND2
In
Ground (0V) source
33 ~ 35
TEST1 ~ TEST3
Not used. Connected to ground.
36
MI
In
Not used. Connected to +5V.
37
-RESET
In
Reset signal input
38
AVDD
In
Ground (0V) source for internal DAC
39
OUT
Out
Sound waveform output
40
AGND
In
Ground (0V) source for internal DAC
41 ~ 48
KI0 ~ KI7
In
Input terminals for keys and switches
49 ~ 63
KO0 ~ KO14
Out
Key and switch scan signal output
64 ~ 72
Not used.
73
LGND1
In
Ground (0V) source
74 ~ 80
Not used.
CPU (MSM6567-15)
Containing sound data ROM and DAC (Digital to Analog Convertor), the CPU provides sound waveform in
accordance with the pressed key and the selected tone.
The following table shows pin function of the LSI.
Содержание CTK-450
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