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The following table shows the pin functions of LSI16.
Pin No.
1
2, 3, 60 ~ 63
4
5
6
7
8, 9, 11
10
12
13, 14
15
16
17
18
19
20 ~ 23, 25 ~ 28
24
29 ~ 31
32
33 ~ 39, 41 ~ 43,
53 ~ 55, 57 ~ 63
40
44 ~ 47, 49 ~ 52
48, 56
64
FILTER BLOCK
Since the sound signals from the DAC are stepped waveforms, the filter block is added to smooth the
waveforms.
16 V 10 µ
To main volume
IC203
M5218APR
Terminal
I n / O u t
REQB
Out
FI8 ~ FI10,
In
SI8 ~ SI10
VCC
In
CRDB
In
CWRB
In
CCSB
In
T, STBY, W
In
RESB
In
CKI
In
TMD, TST
In
CKO
Out
GND
In
XIN
In
XOUT
Out
TRES
In
CD0 ~ CD7
In/Out
GND
In
CA0 ~ CA2
In
VCC
In
FI0 ~ FI9,
In
SI0 ~ SI9
VCC
In
KC0 ~ KC7
Out
GND
In
VCC
In
C333(H)
-
1 K
+
AG
— 11 —
Function
Not used.
Not used. Connected to +5 V.
+5 V source
Read enable signal input
Write enable signal input
Chip select signal input
Not used. Connected to +5 V.
Reset signal input
10 MHz clock input
Not used. Connected to ground.
Not used.
Ground (0 V) source
Not used. Connected to ground.
Not used.
Not used. Connected to ground.
Data bus
Ground (0 V) source
Address bus
+5 V source
Key input signal input
+5 V source
Key scan signal
Ground (0 V) source
+5 V source
AVDD
AVDD
Q210/211
2SC1740
1 K
1 K
AG
AG
50 V 0.47 µ
From the DAC
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