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Sound Effect Chip (HE80085)
The Sound effect chip read sound data from the built-in ROM in accordance with the pressed SE key (or hitting
the drum pad) and the selected tone. Then it provide the sound waveforms to the Power amp. For sound output,
by converting the data into waveforms with the built-in DACs and Op-Amp. The following table shows the pins
functions of the LSI.
Pin. No.
Terminal
1~7, 9~12, 14,
16~18, 20~23,
---
25, 28~37
8
VO
13
#RST
15
FXI
19
VDD
24
CLK
26
LE
27
DATA
38
GND
In/Out
---
Not Used.
Out
Voice Output treminal
In
Reset signal in treminal
External fast clock pin. Connect to RC to generate system
---
clock.
In
+5V source
In
Data clock
In
Latch Enable
In
Data bus
In
Ground (0V) source
— 7 —
Function
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