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7-15.
IC PIN FUNCTION DESCRIPTION
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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”)