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7-19. IC PIN FUNCTIONS
• IC701 System Control (µPD780018AYGF-015-3BA) (MAIN Board)
1 BD POWER O CD power control pin, “H”:CD POWER ON
2 PANEL SW I Front cover open/close switch, “H”:Open glass door, “L”:Close glass door
3 to 7 – I Not used
8 AC.CUT I AC power connection signal, “L”:Power is disconnected
9 VPP – Normally connected to the ground pin
10 X2 O Main system clock output pin (5 MHz)
11 X1 I Main system clock input pin (5 MHz)
12 VDD1 – Positive power supply (+5V)
13 XT2 O Sub system clock output pin (32 kHz)
14 XT1 I Sub system clock output pin (32 kHz)
15 RESET I System reset input pin, “L”:RESET
16, 17 – I Not used
18 ENCODER A I Encoder input pin for jogging
19 ENCODER B I Encoder input pin for jogging
20 RDSCLK I RDS clock input pin (Not used)
21 RDSDAT I RDS data input pin (Not used)
22 SCOR I SCOR input pin
23 VDD0 – Positive power supply of port (+5V)
24 ADREF – Reference voltage of A/D converter (+5V)
25 KEY1 I Key input pin (Analog input)
26 KEY0 I Key input pin (Analog input)
27 to 30 – I Not used
31 HP-SW I Headphone detection SW, “L”:No HP, “H”:HP
32 – I Not used
33 AVSS – A/D converter ground potential
34 – I Not used
35 FL.DAT O Serial data output for FL tube control IC (MSM9202-02)
36 FL.CLK O Serial clock output for FL tube control IC (MSM9202-02)
37 FL.LAT O Chip select output for FL tube control IC (MSM9202-02)
38 FL.RST O Reset signal output for FL tube control IC (MSM9202-02)
39 – I Not used
40 VSS1 – Ground potential other than port and analog
41, 42 – I Not used
43 SQSI I CD sub code data input
44 – I Not used
45 SQCK O Clock output for reading CD sub code
46 to 48 – I Not used
49 IN-SW I CD tray close completion detection input, “L”:CLOSE
50 OUT-SW I CD tray open completion detection input, “L”:OPEN
51 HELP I Pin requesting power ON from the PC link adapter (optional), Normally “H”
52 FSW O Focus gain switch
53 SENSE I SENSE input pin
54 – I Not used
55 IIC DAT I/O System control communication data input/output pin
56 IIC CLOCK I/O System control communication clock input/output pin
57 CD-CLK O Serial clock for CD control
58 CD-DATA O Serial data for CD control
59 DF-LAT O Chip select signal for DA/DF
60 DSP-LAT O DSP IC and SSP IC chip select
Pin No.
Pin Name
I/O
Function