Akai GX-747 dbx

µPD5530-152/110
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f'E3 ~----. _ _J
Pfo
P03
P~o
I
PC3 ~--.._.,--..,.
PBo
PB3 ---,___J
P1o
PA3 --, _ __J
RAM
DECODER
RAM
96 X 4
1/0
INTERFACE
t t t t
Vee Vss TEST RES
DATA
POINTCH)
RAM
BUFFER
4bit
4bit
INSTRUCTION- BUS Sb;!
P..BUS
8bit
Clo CL,
ARITHMETIO
LOGIC
UNIT
ACCUMU·
LATOR
TIMER
CLOCK
GENERATOR
CONTROL
a
DECODE
8bit
INTERRUPT
CONTROL
INT
ROM
2000x8
STACKO
STACK I
STACK 2
---------------SCHEMATIC DIAGRAM GX-747dbx ---------------
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