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IC PIN FUNCTION DESCRIPTIONS
IC4201 [ SUB MICRO CONTROLLER ]
Pin
IN/
Signal
No.
OUT
Name
1
KEY-1
IN
2
IN
KEY-2
3
-
N.U.
4
IN
REMOTE Remote Signal Input
5
-
N.U.
6
-
N.U.
7
-
N.U.
8
OUT
FL-STB
9
OUT
FL-CLK
10
OUT
FL-SDA
11
-
N.U.
12
OUT RW-BUSY For Flash Memory Writing
13
IN
RW-SCLK For Flash Memory Writing
14
-
N.U.
IN/
15
RW-SDA
OUT
P-DOWN Power Voltage Down
16
IN
17
-
N.U.
18
IN
RW-VPP
19
IN
RESET
20
IN
XCIN
21
OUT
XCOUT
22
IN
XIN
23
OUT
XOUT
24
-
GND
25
OUT
PWSW
26
-
N.U.
27
-
N.U.
28
-
N.U.
29
-
N.U.
30
-
N.U.
Name Function
Key Data Input 1
Key Data Input 2
Not Used
Not Used
Not Used
Not Used
Serial Interface Strobe
Serial Clock
Serial Data
Not Used
Not Used
For Flash Memory Writing
Detector Signal
Not Used
For Flash Memory Writing
Micro Controller Reset
Signal
Sub Clock Input
Sub Clock Output
Main Clock Input
Main Clock Output
Ground
Main Power Control Signal
Not Used
Not Used
Not Used
Not Used
Not Used
Pin
IN/
Signal
No.
OUT
Name
31
-
N.U.
32
-
N.U.
33
-
N.U.
34
-
N.U.
35
-
N.U.
36
-
N.U.
37
-
N.U.
38
-
N.U.
39
OUT
V-MUTE
SYS-
40
OUT
RESET
41
IN
RDY
42
IN
FID
43
-
N.U.
44
-
N.U.
AUDIO-
45
OUT
SW1
AUDIO-
46
OUT
SW2
47
OUT
A-MUTE
48
-
N.U.
49
IN
RW-OEX
OUT SUB-SCLK Communication Clock with
50
SUB-TXD Transmission Data to Main
51
OUT
SUB-RXD Reception Data from Main
52
IN
53
OUT
SUB-SCL Serial Clock
IN/
54
SUB-SDA Serial Data
OUT
55
-
N.U.
56
-
N.U.
57
IN
VCC
58
IN
V-REF
1-13-1
Name Function
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Video Mute Control Signal
System Reset Signal
Ready/Busy
communication Control
with Main Micro Controller
Video Presence Detector
Signal
Not Used
Not Used
Audio Input Select Signal
Audio Input Select Signal
Audio Mute Control Signal
Not Used
For Flash Memory Writing
Main Micro Controller
Micro Controller
Micro Controller
Not Used
Not Used
+5V Power Supply
Reference Voltage
E6502PIN
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