Ic Pin Function Description - Sony D-EJ775 Service Manual

D-EJ775

5-19. IC PIN FUNCTION DESCRIPTION

• IC801 T5AJ4-3N53 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 GND
2 XIN
3
XOUT
4
TEST
5
VCPU
6 FOK
7 XBUSY
8 XRESET
9 XSTOP
10 P23
11
SCOR
12
HPSW
13 DEFECT
14 XPOWLT
15
R/XW
16 MSDTI
17 MSDTO
18 SCK
19
VCPU
20
VREFH
21 AD SEL
22 AD CHGMNT
23 AD KEY 2
24 AD BATMNT
25
WP/AD KEY 1
26 WP/AD RMKEY
WP/AD
27
DCINMNT
28 WP/XOPEN
P50
29
30 BEEP
31 TSB
32 VDD EEPROM
33 P44
34 XNONCHG
35 XDRVLT
36 FRANCE
37 X4M/16M
38 CMPON
39 P46
40 HOLD
41 to 56 SEG15 to SEG0
57 to 60 COM3 to COM0
61 to 63 V3 to V1
30
I/O
— Ground terminal
I System clock input from the DSP
O High frequency oscillator output terminal Not used
I Test terminal for IC Not used
— Power supply terminal (+2V)
I Focus OK signal input from the DSP "L": NG, "H": OK
I Auto sequencer status signal input from the DSP
System reset signal input from the power control "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I
Not used
O Serial data latch signal output terminal Not used
I Subcode sync (S0+S1) detection signal input from the DSP
O Drive signal output to the headphone amplifier "H": on
I Defect signal input from the DSP
O Serial data latch pulse signal output to the power control
O Serial data read/write signal output to the DSP
I Serial data input from the DSP
O Serial data output to the power control, spindle motor driver and DSP
O Serial data transfer clock signal output to the power control, spindle motor driver and DSP
— Power supply terminal (+2V)
I Reference voltage (+2V) input terminal
I
Test terminal (A/D input) "L": test
I Battery charge voltage detection signal input from the power control (A/D input)
I Key input terminal (A/D input)
I Battery voltage detection signal input from the power control (A/D input)
I Key input terminal (A/D input)
I Key input from the headphone with remote commander (A/D input)
I DC input voltage detection signal input (A/D input)
CD lid open/close detection switch input terminal "L": CD lid open
I
The stop status is reset with the falling edge of input signal
O Not used
O Beep sound output to the headphone amplifier
I/O Communication two-way data bus with the headphone with remote commander
— Power supply terminal Not used
O Not used
I Charging feature detection signal input terminal Not used
O Serial data latch pulse signal output to the spindle motor driver
I Destination setting terminal for French model only (fixed at "H")
I D-RAM size setting terminal
I G-PROTECTION switch input terminal "H": on
O Not used
I HOLD switch input terminal "H": hold on
O Segment drive signal output terminal for the liquid crystal display Not used
O Common drive signal output terminal for the liquid crystal display Not used
O Liquid crystal display drive bias control signal output terminal Not used
Description
"L": 4M bits, "H": 16M bits Not used