Sony HCD-C770 - Page 102

102
HCD-C770/C990
• DVD BOARD IC901 µPD703033BYGF-M01-3BA (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 DAMP-DATA O
Serial data output to the stream processors
2 DAMP-CLK O
Serial data transfer clock signal output to the stream processors
3 I2C-DATA I/O
Communication data bus with the DVD system processor and mechanism controller
4 CQ-RST
O Reset signal output to the DVD system processor “L”: reset
5 I2C-CLK I/O
Communication data reading clock signal input or transfer clock signal output with the DVD
system processor and mechanism controller
6
DSP-DO
I
Write data input from the audio digital signal processor
7 DIG-DI O
Read data output to the digital audio interface IC, audio digital signal processor and D/A
converter
8 DIG-CLK O
Clock signal output to the digital audio interface IC, audio digital signal processor and D/A
converter
9 EVDD —
Power supply terminal (+5V)
10 EVSS —
Ground terminal
11 P-PWM O
PWM voltage control signal output
12 DSP-RST
O Reset signal output to the audio digital signal processor “L”: reset
13 DSP-PM
O PLL reset signal output to the audio digital signal processor “L”: reset
14 DSP-CS O
Chip select signal output to the audio digital signal processor
15 DSP-HACN I
Acknowledge signal input from to the audio digital signal processor
16 DSP-BST O
Boot trap signal output to the audio digital signal processor
17 DSP-GP9 I
Decode signal input from to the audio digital signal processor
18
DIR-ZERO
I
Audio serial data input from the digital audio interface IC
19 DIR-ERR I
PLL lock error and data error flag input from the digital audio interface IC
20
DIR-CE O
Chip enable signal output to the digital audio interface IC
21 VPP —
Power supply terminal (for programming) Not used
22
DIR-XST I
Source clock switching monitor input from the digital audio interface IC
23 DIR-AD O
Not used
24
DIR-XMODE I
System reset signal input from the digital audio interface IC “L”: reset
25
DI I
Write data input from the digital audio interface IC
26 DAMP-RST O
Reset signal output to the stream processors “L”: reset
27 DAMP-MUTEG O
Muting on/off control signal output to the stream processors “H”: muting on
28 DAMP-MUTEN O
Muting on/off control signal output to the stream processors “H”: muting on
29 CS1 O
Chip select signal output to the stream processor (for front L-ch and R-ch)
30 CS2 O
Chip select signal output to the stream processor (for center and woofer)
31 CS3 O
Chip select signal output to the stream processor (for rear L-ch and R-ch)
32 DAC-CS O
Chip select signal output to the D/A converter
33 AD-RST O
Reset signal output to the A/D converter and D/A converter “L”: reset
34 RESET I
System reset signal input “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
35 XT1 I
Sub system clock input terminal Not used
36 XT2 O
Sub system clock output terminal Not used
37
REG0 —
Not used
38 X2 O
Main system clock output terminal (20 MHz)
39 X1 I
Main system clock input terminal (20 MHz)
40 VSS —
Ground terminal
41 VDD —
Power supply terminal (+5V)
42 CLKOUT O
Clock signal output terminal Not used