88
HCD-PX333
•MD DIGITAL BOARD IC1101 µPDSS3033AYGF-M10-3BA (CD MECHANISM CONTROLLER)
Pin No. Pin Name I/O Description
1DRVDAT O Serial data output to a FL driver Not used (open)
2DRVCLK O Serial data transfer clock signal output to a FL driver Not used
3I2CDAT I Data input/output terminal for the IIC bus
4NC O Not used (open)
5I2CCLK I Shift clock signal input/output terminal for the IIC bus
6GND —Ground terminal
7DATA O Serial data output to the CD block
8CLK O Serial data transfer clock signal output to the CD block
9 EVDD —Power supply terminal (+5V)
10 EVSS —Ground terminal
11 XLT O Serial data latch pulse output to the CD block
12 SENSE I Internal status detection monitor input from the CD block
13 LDON O Laser diode on/off control signal output to the CD block
14 LPH O Laser power control signal output terminal Not used (open)
15 SUBQ I Subcode Q data input from the CD block
16 NC ONot used (open)
17 SQCLK OSubcode Q data reading clock signal output to the CD block
18 CTRL1 O Disc speed selection (normal/double speed) signal output to the CD block
19 X4 O Disc speed selection (normal/quadruple speed) signal output to the CD block
20 8CM O CD disc size select (8cm/12cm) signal output terminal Not used (open)
21 GND/VPP —Ground terminal
22 SPINDLEMUTE O Spindle motor muting control signal output to the CD block “H”: muting on
23 to 29 NC O Not used (open)
AMUTE
30 O Muting on/off control signal output to the D/A converter (IC1006) “L”: muting on
31 BDPWR O Power supply for the CD block on/off control signal output “H”: power on
32 BDRST O Reset signal output to the CD block
33 FUNC ST O Function select signal output terminal Not used (open)
34 RESET I Reset signal input from the system controller (IC501)
35 XT1 I Sub system clock input terminal Not used (fixed at “L”)
36 XT2 O Sub system clock output terminal Not used (open)
37 CHEMICON I Connected to the external capacitor
38 X2 O Main system clock output terminal (16MHz)
39 X1 I Main system clock input terminal (16MHz)
40 VSS —Ground terminal
41 VDD —Power supply terminal (+5V)
42 NC —Not used (open)
43 to 45 ENCODE0 to
ENCODE2 I Jog dial pulse input terminal Not used (fixed at “H”)
46 NC O Not used (open)
47 TRAYSENCE3 I Detection input from the disc tray address detect rotary encoder Not used (fixed at “H”)
48 CNT-SW I Detection input from the count detect switch Not used (fixed at “H”)
49 PRTC-SW I Detection input from the protect switch Not used (fixed at “H”)
50, 51 TRAYSENS1,
TRAYSENS2 I Detection input from the disc tray address detect rotary encoder Not used (fixed at “H”)
52 OUT-SW I Detection input from the tray open/close detect switch (S1) “L”: when tray is open