Read Sharp DV-740 (serv.man13) Service Manual online
80
DV-740H/S(Y,F,S,R)
Data Bus
Data Bus
Port 0
Drivers
P0.7:0
Port 2
Drivers
P2.7:0
Data Bus
Data Bus
Program Address
Register
Program Counter
Buffer
DPTR
Incrementer
Port 1
Drivers
P1.7:0
Port 3
Drivers
P3.7:0
Port Latch
Port Latch
Port Latch
Serial Port
Timer
Interrupt Logic
ACC
ALU REG1
ALU REG2
PSW
ALU
B Register
Stack
Pointer
Clocks and Control
OSC
Instruction
Register
RAM Addr.
Register
512 Bytes
RAM
XTAL1
XTAL2
/PSEN
ALE
/EAVPP
RST
64K bytes
MTP Memory
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