Read Sharp DV-NC55 (serv.man11) Service Manual online
80
DV-NC55S/H
DV-NC60H
DV-NC60H
Port 2
Port 4
Port 09
Port 3
Port 1
HIGH FREQ
OSC
LOW FREQ
OSC
P22~P20
P47~P40
P17~P10
P37~P30
P07~P00
STOP
INTREQ
TI0, TI1
RXD,
TXD
UART
8bit TMR
SCK,
SI, SO
ch. 0
ch. 1
ch. 1
ch. 0
INTERRUPT
CONTROLLER
STANDBY
CONTROLLER
fs
fc
CLK GEAR, TBT
OSC
SYSCLK
CPU
WDT
ETC0
SERIAL
INTERFACE
EA
EXTERNAL BUS
CONTROLLER
TO0
TO1
RD, WR, ALE, WAIT, CLK
AD0~7
A8~A15
16-bit
Expansion Timer
DVO
ROM
16KB
RAM
512B
RESET
XIN
XOUT
• Block Diagram
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