— 7 —
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 In/Out Function
1~7, 9~12, 14,
16~18, 20~23,
25, 28~37
8
13
15
19
24
26
27
38
---
VO
#RST
FXI
VDD
CLK
LE
DATA
GND
Not Used.
Voice Output treminal
Reset signal in treminal
External fast clock pin. Connect to RC to generate system
clock.
+5V source
Data clock
Latch Enable
Data bus
Ground (0V) source
---
Out
In
---
In
In
In
In
In
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