76
XAV-A1
MAIN BOARD IC101 uPD70F3217GJ-UE/7666AA (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
AVREF0
I
Reference voltage (+5V) input terminal
2
AVSS
-
Ground terminal
3
KEY_PWR
O
Power on/off control signal output for AD5V power "H": power on
4
DIMMER
O
Dimmer control signal output to the inverter controller
5
AVREF1
I
Reference voltage (+5V) input terminal
6
BLANK
O
Not used
7
NC
O
Not used
8
VPP/IC
-
Not used
9
VDD
-
Power supply terminal (+5V)
10
REGC
-
Connected to the external capacitor Not used
11
VSS
-
Ground terminal
12
X1
I
Main system clock input terminal (4 MHz)
13
X2
O
Main system clock output terminal (4 MHz)
14
RESET
I
System reset signal input from the reset signal generator and reset switch "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it change to "H"
15
XT1
I
Sub system clock input terminal (32.768 kHz)
16
XT2
O
Sub system clock output terminal (32.768 kHz)
17
KEY2
I
Monitor key input terminal (A/D input)
18
BATT
I
Battery detection signal input terminal "H": battery on
19
CE
I
Accessory detection signal input terminal "H": accessory on
20
REM
I
Remote control signal input from the remote control receiver
21
PWR-KEY
I
SOURCE key input terminal
22
MD-SI
I
Serial data input terminal when data writing
23
MD-SO
O
Serial data output terminal when data writing
24
MD-CLK
O
Serial data transfer clock signal output terminal when data writing
25, 26
NC
O
Not used
27
EQ_CE
O
Chip enable signal output to the equalizer
28
EQ_DATA
O
Serial data output to the equalizer
29
EQ_CLK
O
Serial data transfer clock signal output to the equalizer
30
NC
O
Not used
31
E2P_SCL
O
Serial data transfer clock signal output to the I/O expanders and EEPROM
32
E2P_SDA
I/O
Two-way data bus with the I/O expanders and EEPROM
33
EVSS
-
Ground terminal
34
EVDD
-
Power supply terminal (+5V)
35
NC
O
Not used
36
RA_SDA
O
Radio PLL data output to the AM/FM tuner
37
RA_SD
I
Radio station detection signal input terminal
38
RA_SCL
O
Radio PLL clock signal output to the AM/FM tuner
39
RA_ST
I
Stereo detection signal input terminal
40, 41
AREA1, AREA2
I
Destination setting terminal
42
VR_CLK
O
Serial data transfer clock signal output to the electrical volume
43
EQ_DATA
O
Serial data output to the electrical volume
44
MPEG_REQ2
O
Not used
45
DVD+B
O
Power on/off control signal output for DVD section to the DC/DC converter
46
FRQ_CONT1
O
Frequency control signal output for DVD power to the DC/DC converter
47
NC
O
Not used
Содержание XAV-A1 - Av Center
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