XV-DV333
92
1
2
3
4
1
2
3
4
C
D
F
A
B
E
7.2 PARTS
7.2.1 IC
PDC122A (CONTROL ASSY : IC5501)
• System Control Microcomputer
Pin Functions
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
• List of IC
PDC122A, MM1623BF
No.
Pin Name
I/O
Pin Function
1
DVDON/OFF
O
Control power supply for DVD module
2
HPDET
I
Detect to insert headphone
3
NC
O
4
ACPULSE
I
AC PULSE input detection (Interruption 0)
5
NC
O
6
RDSCLK
I
Clock input from RDS decoder (Interruption 2, without RDS : Low output)
7
REMOCON
I
REMOCON signal input (Interruption 3)
8
XRESET
I
µ
-com reset input
9
XT1
−
Subclock (connect to VDD when no use)
10
XT2
−
Subclock (leave open when no use, and set the bit 6 of OCR SFR)
Ground
Power supply
Ground
Power supply
11
VSS1
−
12
CF1
−
Main Clock (connect to VDD when no use)
13
CF2
−
−
−
Main Clock (leave open when no use)
14
VDD1
−
15
SIMUKE
I
Destination distinction input
16
MODEL
I
Model distinction input
17
VDET
I
DVD3.3V detection input
18
KEY1
I
Key1 input
19
NC
O
20
NC
O
21
NC
O
22
XPROTECT
I
Protection and Fan Error detection input
23
DSPDI
O
Data output to DSP (MOTOROLA) and DIR
24
DSPDO
I
Data input from DSP (MOTOROLA)
25
DSPCLK
O
Clock output to DSP (MOTOROLA) and DIR
26
FLCS
O
Chip enable for FL driver
27
FLDAT
O
Data for FL driver (serial data input)
28
FLCLK
O
Clock for FL driver
29
XFLRST
O
Reset for FL driver
30
XREADY
O
Chip select for system bus (to DVD module)
31
XHPMUTE
O
HP MUTE ON/OFF
32
NC
O
33
XMUTEC
O
Cch MUTE ON/OFF
34
RYFS
O
FRONT/SW RELAY ON/OFF
35
RYRC
O
REAR/CENTER RELAY ON/OFF
36
NC
O
37
TIMERLED
O
Control TIMER LED
38
NC
O
39
VSS4
40
VDD4
