Ic Pin Function Descriptions - Philips DVDR3475 Service Manual

IC1501 (SUB MICRO CONTROLLER)
Pin IN/ Signal
No. OUT Name
1 IN KEY-1
2 IN KEY-2
3 IN POW-SW
4 IN AFT
FLASH-
5 -
VPP
6 IN VCC
7 IN VCC
8 OUT XOUT
9 IN XIN
10 - GND
11 IN XCIN
12 OUT XCOUT
13 - GND
14 IN RESET
15 - NU
16 - NU
17 - NU
18 OUT SUB-TXD
19 IN SUB-RXD
20 OUT SUB-SCLK
21 - NU
SYS-
22 OUT
RESET
23 - NU
24 - NU
25 - NU
REG-
26 OUT
CONT2
27 IN REMOTE
28 - NU
29 IN RDY
30 IN P-DOWN
31 OUT FL-SEL
32 - NU
33 - NU
34 - NU

IC PIN FUNCTION DESCRIPTIONS

Function
Key Data Input 1
Key Data Input 2
Abnormal Voltage Detection
Tuner Voltage Input Signal
Flash Writing Voltage
+3.3V Power Supply
+3.3V Power Supply
Main Clock Output
Main Clock Input
Ground
Sub Clock Input
Sub Clock Output
Ground
Micro Controller Reset
Signal
Not Used
Not Used
Not Used
Transmission Data to Main
Micro Controller
Reception Data from Main
Micro Controller
Communication Clock with
Main Micro Controller
Not Used
System Reset Signal
Not Used
Not Used
Not Used
Power Regulator Control
Signal
Remote Signal Input
Not Used
Ready/Busy communication
Control with Main Micro
Controller
Power Voltage Down
Detector Signal
FL Select (Low Level)
Not Used
Not Used
Not Used
Pin IN/ Signal
No. OUT Name
IN/ FLASH-
35
OUT SDA
FLASH-
36 OUT
SCL
POFF-
37 OUT
SELECT
38 - NU
AUDIO-
39 OUT
SW2
AUDIO-
40 OUT
SW1
VIDEO-
41 OUT
SW1
VIDEO-
42 OUT
SW2
VIDEO-
43 OUT
SW3
44 - NU
45 - NU
46 - NU
47 - NU
48 OUT FL-DIN
49 OUT FL-STB
50 OUT FL-SCL
51 - NU
REG-
52 OUT
CONT
53 OUT PWSW
54 - NU
55 - NU
56 - NU
57 - NU
58 - NU
59 OUT REC-LED
60 - NU
61 - GND
62 - NU
63 - NU
64 - NU
1-15-1
Function
Serial Data Signal for Flash
Serial Clock Signal for Flash
Power Off Select Signal
Not Used
Audio Input Select Signal
Audio Input Select Signal
Video Input Select Signal
Video Input Select Signal
Video Input Select Signal
Not Used
Not Used
Not Used
Not Used
FL Serial Data
FL Serial Interface Strobe
FL Serial Clock
Not Used
Power Regulator Control
Signal
Power On Signal Output
Not Used
Not Used
Not Used
Not Used
Not Used
Recording LED Control
Signal
Not Used
Ground
Not Used
Not Used
Not Used
E7E4APIN