Ic Pin Descriptions - Sony CDX-MP30 Manual De Servicio

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3-12. IC Pin Descriptions

• IC3 HD6432238RWN18TEI (CD Master Control) (SERVO Board)
Pin No.
Pin Name
1
TEST
2
DECXRST
3
DECSTBY
4 to 7
NC
8
PH3
9
INSW/PH2
10
LIMIT_SW
11
D_SW
12
CVCC
13
NC
14
VSS
15
NC
16
PH1
17
EJECT
18
LOAD
19 to 26
NC
27
FLAG
28
RFOK
29,30
NC
31
TXD
32
RXD
33
XTALEN
34
TSTB
35
STB
36
A0
37
CD_RST
38
PACK
39
NC
40
SELF_SW
41
NC
42
AVSS
43,44
NC
45,46
NC
47
KEY0
48
KEY1
49 to 52
NC
53
AVREF
54
AVCC
55
MD0
56
MD1
57
X1A
58
X0A
59
RSTX
60
NMI
61
STBY
62
VCC
63
XTAL
64
VSS
65
EXTAL
66
FWE
I/O
I
Test mode selection terminal (not used)
O
Reset signal output to the DSP IC(IC5) "L": reset
O
Standby mode control signal output to the DSP IC(IC5) "H": standby
O
Not used
I
CD PH3 photo sensor detection signal input (not used)
I
CD mechanism disc in switch detection signal input
I
CD mechanism in-limit switch detection signal input
I
CD mechanism down switch detection signal input
System power supply (3.3V)
O
Not used
Ground
O
Not used
I
CD PH1 photo sensor detection signal input (not used)
O
CD mechanism loading motor control signal output (eject operation)
O
CD mechanism loading motor control signal output (load operation)
O
Not used
I
Correction unable detection signal input
I
RFOK signal input from the servo IC (IC1)
O
Not used
O
UART TXD PC connection output terminal
I
UART RXD PC connection input terminal
O
Crystal oscillation control signal output to the servo IC (IC1)
O
CD text parameter strobe signal output to the servo IC (IC1)
O
Data strobe signal output to the servo IC (IC1)
O
Command/parameter identification signal output to the servo IC (IC1) "L": command, "H": parameter
O
Reset signal output to the servo IC (IC1)
I
CD text pack sync signal input from the servo IC (IC1)
O
Not used
I
CD mechanism self load position detection switch signal input
O
Not used
Ground for A/D converter
O
Not used
I
Not used
I
Key switch signal input in the test mode
I
Mode switch signal input in the test mode
I
Not used
Reference voltage for A/D converter
Power supply for A/D converter
CPU operation mode setting terminal
CPU operation mode setting terminal
Sub clock oscillator terminal (not used,open)
Sub clock oscillator terminal (not used,open)
I
Microcomputer reset signal input
Not used (fixed at "H")
Not used (fixed at "H")
Power supply
Main clock oscillator terminal
Ground
Main clock oscillator terminal
I
Flash write enable signal input
Description
CDX-MP30
29

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