Sony HCD-PX333 Xelt, Wr-Pwr, I2CCLK, VCC1, VSS1, Rec-Sw, Clipdti, Clipck, Dig-Rst, Play-Sw, VSS2

HCD-PX333

Pin No.		Pin Name				I/O		Description
31	C2-PWM-B					O	Not used (open)
32			XINT			I	Interrupt status input from the CXD2662R (IC151)
33					—	O	Not used (open)
34			XELT			I	Not used (open)
35		WR-PWR				O	Laser power select signal output to the CXD2662R (IC151) and HF module switch circuit
							“L”: playback mode, “H”: recording mode
36			I2CCLK			I/O	Shift clock signal input/output terminal for the IIC bus
37			I2CDAT			I/O	Data input/output terminal for the IIC bus
38			SWDT			O	Writing data output to the CXD2662R (IC151)
39			VCC1			—	Power supply terminal (+3.3V)
40			SRDT			I	Reading data input from the CXD2662R (IC151)
41			VSS1			—	Ground terminal
42			SCLK			O	Serial clock signal output to the CXD2662R (IC151)
43			REC-SW			I	Detection input from the recording position of over write head (HR901) detect switch (S105)
							“L” recording mode
44		CLIPDTO				O	Serial data output terminal
45			CLIPDTI			I	Serial data input terminal
46			CLIPCK			O	Serial clock signal output terminal	Not used (open)
47						O	Reset signal output to the CXD2662R (IC151) and BH6519FS (IC141)		“L”: reset
			DIG-RST
48			SENS			I	Internal status (SENSE) input from the CXD2662R (IC151)
49		PLAY-SW				I	Detection input from the playback position of slider (eject) detect switch (S104)
							“L” playback mode
50			XLAT			O	Serial data latch pulse signal output to the CXD2662R (IC151)
51			OUT-SW			I	Detection input from the loading-out detect switch (S103)
							“L” at a load-out position, others: “H”
52					—	I	Not used (open)
53					—	O	Not used (open)
54					—	I	Not used (open)
55					—	O	Not used (open)
56	MNT2 (XBUSY)					I	Busy signal input from the CXD2662R (IC151)
57			VSS2			—	Ground terminal
58	MNT1 (SHOCK)					I	Track jump detection signal input from the CXD2662R (IC151)
59			VCC2			—	Power supply terminal (+3.3V)
60			EEP-WP			O	Writing protect signal output to the EEPROM (IC195)
61			SDA			I/O	Two-way data bus with the EEPROM (IC195)
62	BCLK/ALE/CLKO					O	Not used (open)
63					OE	O	Data reading strobe signal output	Not used (open)
64						O	Not used (open)
		BHE/CASH
65						O	Writing enable signal output Not used (open)
					WE
66				SCL		O	Clock signal output to the EEPROM (IC195)
67		REFLECT				I	Detection input from the disc reflection rate detect switch (S102-1)
							“L”: high reflection rate disc, “H”: low reflection rate disc
68		PROTECT				I	REC-proof claw detect input from the protect detect switch (S102-2)		“H”: write protect
69						O	Chip select signal output Not used (open)
				CS0
70						O	Chip select signal output terminal	Not used (open)
				CS1
71. 72					—	—	Not used (open)
73				A19		O	Address signal output Not used (open)

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