Sony MHC-NX1 - IC PIN FUNCTION DESCRIPTION; MAIN BOARD IC101 M30622 MA-A13 FP

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7-15. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC101 M30622MA-A13FP (SYSTEM CONTROLER (CD MECHANISM CONTROL))
Pin No. Pin Name I/O Description
1 CD DATA O Serial data output to the CXD2587Q (IC101) on the CD block
2 CD CLK O Serial data transfer clock signal output to the CXD2587Q (IC101) on the CD block
3 XLT O Serial data latch pulse output to the CXD2587Q (IC101) on the CD block
4 XRST O
Reset signal output to the CXD2587Q (IC101) and BA5974FP (IC102) on the CD block
“L”: reset
5 NC O Not used (open)
6 SQ DATA IN I Subcode Q data input from the CXD2587Q (IC101) on the CD block
7 SQ CLK O Subcode Q data reading clock signal output to the CXD2587Q (IC101) on the CD block
8 BYTE I External data bus line byte selection signal input terminal Fixed at “L” in this set
9 CNVSS — Ground terminal
10 XCIN I Sub system clock input terminal Not used ( fixed at “L”)
11 XCOUT O Sub system clock output terminal Not used (open)
12 RESET I
System reset signal input from the reset signal generator (IC102) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
13 XOUT O Main system clock output terminal (16 MHz)
14 VSS — Ground terminal
15 XIN I Main system clock input terminal (16 MHz)
16 VDD — Power supply terminal (+5V)
17 NMI I Non-maskable interrupt input terminal Fixed at “H” in this set
18 WAKE UP I Wakeup control signal input from the CPU in the STR-NX1/NX3 “H” active
19 SCOR I Subcode sync (S0+S1) detection signal input from the CXD2587Q (IC101) on the CD block
20
LED POWER
CTRL
O
Power on/off control signal output of the key illumination LED (D201 to D204, D218 to D225)
“H”: LED on
21 SENSE I Internal status detection monitor input from the CXD2587Q (IC101) on the CD block
22 CD HOLD O Laser power control signal output to the CXA2568M (IC103) on the CD block
23 LED A5 O LED drive signal output of the DISC 5 indicator (D214) (for amber color)
24 LED G5 O LED drive signal output of the DISC 5 indicator (D214) (for red color)
25 LED A4 O LED drive signal output of the DISC 4 indicator (D210) (for amber color)
26 LED G4 O LED drive signal output of the DISC 4 indicator (D210) (for red color)
27 LED A3 O LED drive signal output of the DISC 3 indicator (D215) (for amber color)
28 LED G3 O LED drive signal output of the DISC 3 indicator (D215) (for red color)
29 IIC CLK I/O
Communication data reading clock signal input or transfer clock signal output with the CPU in the
STR-NX1/NX3
30 IIC DATA I/O Communication data bus with the CPU in the STR-NX1/NX3
31 TXD1 O Not used (open)
32 RXD1 I Not used (fixed at “L”)
33 CLK1 I Not used (fixed at “L”)
34 RTS1 O Not used (open)
35 LED A2 O LED drive signal output of the DISC 2 indicator (D213) (for amber color)
36 LED G2 O LED drive signal output of the DISC 2 indicator (D213) (for red color)
37 LED A1 O LED drive signal output of the DISC 1 indicator (D209) (for amber color)
38 LED G1 O LED drive signal output of the DISC 1 indicator (D209) (for red color)
39 SOFT CHECK O Output terminal for the software check Not used (open)
40 LED G CDPS O LED drive signal output of the S (CD) indicator (D212) “L”: LED on
41 XHOLD I Not used (fixed at “L”)