Ic Pin Functions - Sony HCD-SD1 Service Manual

7-19. IC PIN FUNCTIONS

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