Korg Wavestation - Page 47

MB87726(TG88)
PIN ASSIGNMENT
TG88(MB87726)
PIN
FUNCTION
PIN NAME
I/O
FUNCTION
VDD
-
+5V
VSS
-
GND
SMODE
I Sub TG
Mode (
H:Sub TG
L: Master
TG
)
FliODE
I
Sampling
Rate
Switch
(
H:48KHz
L:30KHz
)
XRESET
1
Low
Active
Initial
Clear
CLK
I Master
clock
XCRO
System
Counter
Reset
for
Sub TG
Chip
XCRI
I
System
Counter Reset
from
Master
TG
Chip
TESTO-3
I Test
Mode
Selector
XCSI
I Chip
Select
XWRI
I
Write
Pulse
Input from
CPU
XRDI
I
Read Pulse
Input
from
CPU
AO-9
I
Address
Input from
CPU
DO-7 I/O
Data
Input
from CPU
D8-15
I/O
Data Input
for
16bit
Data
Bus
DMODE
I CPU
I/F
Data Bus
Syze
Select (
L:8bit
H:16bit
)
EWDO-15 I
Even-address
Wave Data
in (
from
Wave
ROM
)
0WD0-15 I
Odd-address
Wave
Data
in
(
from
Wave ROM
)
IAO-19
Address Bus
for
Wave
ROM or
RAM
WBO-3
Bank
Number out
for
Wave
ROM
(
16
Banks
)
0D0-19
Voice
Data
out
for
External
Filters or
MDE
VNO-4
Voice
Number
out
RASO-3
for
D-RAM
CASO-3
for
D-RAM
0WE0-3
Write
Enable for
MDE
OWEF
.
Write
Enable for
New Filter
Chip (
MB87727 )
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