RD-DV5-S/DV7-L/DV5MD-S
16
CIRCUIT DESCRIPTION
Port No.
Port Name
I/O
Function
Active
H
L
1
WAIT
I
Bus wait port.
2
NRD(ODC/AVDEC/SRAM)
O
Bus read port.
3
NWEL
O
Unused.
4
NWEH
(ODC/AVDEC/SRAM/ROM)
O
Bus read port.
5
RAMCS(SRAM)
O
SRAM chip select.
6
ODCCS
O
ODC chip select.
7
AVCS(AVDEC)
O
AV decoder chip select.
8
ROMCS(ROM)
O
Flash ROM chip select.
9
SCLOCK(VDAC)
O
Clock output to VDAC (X35, IC600).
10
SDATA(VDAC)
O
Data output to VDAC (X35, IC600)
11
FRD(ROM)
O
Flash ROM read port.
12
WORD
-
Connected to VDD (+3.3V).
13~16
CPUADR0~3
O
Bus address (0~3).
17
VDD
-
Supply voltage (+3.3V).
18
SYSCLK(AVDEC)
O
Clock output to AV decoder (X35, IC300).
19
VSS
-
Connected to GND.
20
XI
I
Connected to GND.
21
XO
O
Unused.
22
VDD
-
Supply voltage (+3.3V).
23
OSCI(CLK135)
I
System clock input (13.5MHz).
24
OSCO
O
Unused.
25
MODE
I
Processor mode selection.
Expan
Mode
26~33
CPUADR4~11
O
Bus address (4~11).
34
AVDD
-
Supply voltage (+3.3V).
35~42
CPUADR12~19
O
Bus address (12~19).
43
VSS
-
Connected to GND.
44
CPUADR20
O
Bus address (20).
45
25BSY
O
Busy data output.
Normal
Busy
46
STBPSL
O
Unused.
47
HFMON
O
HF monitor output.
48
KMODE
O
Selection for writing the ROM.
Writing
Normal
49
AMUTE
O
Audio mute control.
50
CIRCEN(ENC)
O
Enable to Digital Servo Controller (X35, IC1).
51
PROGSW
I
Change-over the component terminal.
52
STBTI
O
Strobe output to MP3 decoder (X35, IC900).
53
FRSW
O
Flash ROM 1, 2 (X35, IC207, 215) change-over.
Default
54
VDD
-
Supply voltage (+3.3V).
55
FEPEN
O
Enable to FEP (traverse).
56
CLKSEL
O
Clock selection.
57
STBDAC2
O
Strobe output to ADAC (X25, IC205).
58
STBSP1
O
Strobe output to serial-parallel converter (X25, IC224).
59
STBDAC1
O
Strobe output to ADAC (X25, IC204).
60
ADSCEN(ENS)
O
Enable to Digital Servo Controller (X35, IC1).
61
VSS
-
Connected to GND.
62
WMINT
I
Interruption port from Water Mark Detector (X35, IC500).
63
E2CS
O
Chip select to EEPROM (X33, IC206).
64
SCSIBN
O
Enable control to jig for writing the ROM.
65
196BSY
I
Busy data input.
Normal
Busy
66
VDD
-
Supply voltage (+3.3V).
67
SCLK0
O
SIO0 clock output to communicate between main
microcomputer and DVD system microcomputer.
6. Port Function of DVD Microcomputer : MN102L62GGB (X35, IC201)