Sony HCD-C990 Service Manual - Page 95

Dvd Board, Ic701, Cxd1882r Dvd Decoder

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HCD-C770/C990 • DVD BOARD IC701 CXD1882R (DVD DECODER) Pin No. Pin Name I/O Description 1, 2 D5, D6 I/O Two-way data bus with the mechanism controller 3 VSS - Ground terminal (digital system) 4 D7 I/O Two-way data bus with the mechanism controller 5 A0 I Address signal input from the mechanism controller 6 VDD - Power supply terminal (+3.3V) (digital system) 7 A1 I Address signal input from the mechanism controller 8 VDD5V - Power supply terminal (+5V) 9 to 14 A2 to A7 I Address signal input from the mechanism controller 15 VSS - Ground terminal (digital system) 16 XWAIT O Wait signal output terminal Not used 17 XRD I Read strobe signal input from the mechanism controller 18 XWR I Write strobe signal input from the mechanism controller 19 XCS I Chip select signal input from the mechanism controller 20, 21 XINT0, XINT1 O Interrupt signal output to the mechanism controller 22 VDD - Power supply terminal (+3.3V) (digital system) 23 XHRS I Not used 24 HDB7 O Stream data signal output to the DSD decoder and DVD system processor 25 VSS - Ground terminal (digital system) 26 HDB8 O Error flag signal output to the DSD decoder and DVD system processor 27 HDB6 O Stream data signal output to the DSD decoder and DVD system processor 28 VDDS - Power supply terminal (+5V) (digital system) 29 HDB9 O Not used 30 HDB5 O Stream data signal output to the DSD decoder and DVD system processor 31 HDBA O Not used 32 HDB4 O Stream data signal output to the DSD decoder and DVD system processor 33 VSS - Ground terminal (digital system) 34 HDBB O Not used 35 HDB3 O Stream data signal output to the DSD decoder and DVD system processor 36 VDD - Power supply terminal (+3.3V) (digital system) 37 HDBC O Not used 38 VDDS - Power supply terminal (+5V) (digital system) 39 HDB2 O Stream data signal output to the DSD decoder and DVD system processor 40 HDBD O Not used 41 HDB1 O Stream data signal output to the DSD decoder and DVD system processor 42 VSS - Ground terminal (digital system) 43 HDBE O Not used 44 HDB0 O Stream data signal output to the DSD decoder and DVD system processor 45 HDBF O Not used 46 XSAK O Serial data effect flag signal output to the DSD decoder and DVD system processor 47 VDDS - Power supply terminal (+5V) (digital system) 48 XDCK O Serial data transfer clock signal output to the DSD decoder and DVD system processor 49 XSHD O Header flag signal output to the DSD decoder 50 VDD - Power supply terminal (+3.3V) (digital system) 51 REDY O Not used 52 VSS - Ground terminal (digital system) 95

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95
HCD-C770/C990
•
DVD BOARD
IC701
CXD1882R (DVD DECODER)
Pin No.
Pin Name
I/O
Description
1, 2
D5, D6
I/O
Two-way data bus with the mechanism controller
3
VSS
—
Ground terminal (digital system)
4
D7
I/O
Two-way data bus with the mechanism controller
5
A0
I
Address signal input from the mechanism controller
6
VDD
—
Power supply terminal (+3.3V)
(digital system)
7
A1
I
Address signal input from the mechanism controller
8
VDD5V
—
Power supply terminal (+5V)
9 to 14
A2 to A7
I
Address signal input from the mechanism controller
15
VSS
—
Ground terminal (digital system)
16
XWAIT
O
Wait signal output terminal
Not used
17
XRD
I
Read strobe signal input from the mechanism controller
18
XWR
I
Write strobe signal input from the mechanism controller
19
XCS
I
Chip select signal input from the mechanism controller
20, 21
XINT0, XINT1
O
Interrupt signal output to the mechanism controller
22
VDD
—
Power supply terminal (+3.3V)
(digital system)
23
XHRS
I
Not used
24
HDB7
O
Stream data signal output to the DSD decoder and DVD system processor
25
VSS
—
Ground terminal (digital system)
26
HDB8
O
Error flag signal output to the DSD decoder and DVD system processor
27
HDB6
O
Stream data signal output to the DSD decoder and DVD system processor
28
VDDS
—
Power supply terminal (+5V)
(digital system)
29
HDB9
O
Not used
30
HDB5
O
Stream data signal output to the DSD decoder and DVD system processor
31
HDBA
O
Not used
32
HDB4
O
Stream data signal output to the DSD decoder and DVD system processor
33
VSS
—
Ground terminal (digital system)
34
HDBB
O
Not used
35
HDB3
O
Stream data signal output to the DSD decoder and DVD system processor
36
VDD
—
Power supply terminal (+3.3V)
(digital system)
37
HDBC
O
Not used
38
VDDS
—
Power supply terminal (+5V)
(digital system)
39
HDB2
O
Stream data signal output to the DSD decoder and DVD system processor
40
HDBD
O
Not used
41
HDB1
O
Stream data signal output to the DSD decoder and DVD system processor
42
VSS
—
Ground terminal (digital system)
43
HDBE
O
Not used
44
HDB0
O
Stream data signal output to the DSD decoder and DVD system processor
45
HDBF
O
Not used
46
XSAK
O
Serial data effect flag signal output to the DSD decoder and DVD system processor
47
VDDS
—
Power supply terminal (+5V)
(digital system)
48
XDCK
O
Serial data transfer clock signal output to the DSD decoder and DVD system processor
49
XSHD
O
Header flag signal output to the DSD decoder
50
VDD
—
Power supply terminal (+3.3V)
(digital system)
51
REDY
O
Not used
52
VSS
—
Ground terminal (digital system)