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