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Port No.
Port Name
71
S11
72
S01
73,74
PUP
75
NMI
76
ADSCINT
77
ODCINT
78
AVINT
79
ICRST
80
STBDAC3
81
-
82
RST
83
Vdd
84-91
CPUDATA0-7
92
Vss
93-100
CPUDATA8-15
MICROPROCESSOR PERIPHERY DIAGRAM
X35,IC2
FRONT END
PICKUP
PROCESSOR
ADSC
SIO1
BUS
8
1M
SRAM
(DVD-TEXT)
SIO0
KEY
REMOTE
CONTROL
DV-4070-B/4900/DVF-R7030-B/R9030
CIRCUIT DESCRIPTION
I/O
I
Data input for every ICs
O
Data output for every ICs
I
No use. Pull up
I
Pull up.
I
Interrupt of Advanced Digital Servo Control
I
Interrupt of Optical Device Control.
I
AV decoder XHINT.
O
Reset for every Ics. H=reset.
O
Standby of DAC3
I
Address/data mode. Pull up=address/data separate.
I
Reset
I
+5V
I/O
Data bus(0-7)
O
GND
I/O
Data bus(8-15)
X35,IC300
X35,IC700
CONTENTS
OPTICAL
PROTECTION
DEVICE
for PRERECORD
CONTROL
MEDIA
8
X35,IC500
MAIN
MICROPROCES
SOR
X25,IC100
SUB
MICROPROCESSOR
X25,IC102
E2PROM(4K)
MECHANISM
MECHANISM/POWER
SUPPLY
Description
X35,IC401/2
SDRAM
X35,IC400
AV
DECODER
WATER
MARK
16
16
FLASH
ROM(1M)
LED
X14,ED1
DISPLAY
X35,IC600
VIDEO DAC
X25,IC5/6
AUDIO
DAC
X25,IC18
I/O
X35,IC502
E2PROM(4K)
V. OUT
A. OUT
6
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