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7.
PERCUSSION
GENERATOR
(MSM6294-02)
Percussion
Out
Data Bus
CPU
Percussion
Percussion Filter
MSM6293
Generator
MSM6294
WR
Oscillator
fo =256 KHz
Pin Function of Percussion Generator
ЕП Мо.
Signal
In/Out | Function
1
RESET
in
Reset signal input.
LOW active.
| The terminal
holds LOW level at power switch
on for initializing the internal
circuit
2
|
CLK
In
Clock pulse (256 kHz) input
3
|
_| No function
4
| WR
In
Write signal input.
LOW active.
|
The LSI reads the percussion data from the CPU when the terminal
|
is LOW level.
5
| CS
In
Chip select signal input. Fixed at LOW level.
6-3
| 0-07
In
Data bus (DO
~ D7)
14
DVSS
Ground (OV) source for internal digital circuit
15,16
|
No function
17
| AVSS
Ground (QV) source for internal DAC
18
MIX-O
Out
Analog percussion signal output
|
18
| AVDD
|
+5\/ source for internal DAC
| 20-27
No function
| 28
| DVDD
+5V source for internal digital circuit
E
ect
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