XM-S400D
13
• IC Pin Function Description
MAIN BOARD IC508 R5F1037AANA (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
/RESET
I
Reset signal input terminal “L”: reset Fixed at “H” in this unit
2
BU_IN
I
Battery voltage detection signal input terminal “L”: over voltage
3
REM_IN
I
Remote detection signal input terminal “L”: remote on
4
SP_IN
I
Audio detection signal input terminal
5
Vss
-
Ground terminal
6
Vdd
-
Power supply terminal (+3.3V)
7
LED_ON
O
POWER PROTECT indicator LED drive signal output terminal “H”: LED on
8
AMP_STBY
O
Standby signal output to the power ampli
fi
er “L”: standby
9
AMP_MUTE
O
Muting on/off control signal output to the power ampli
fi
er “H”: muting on
10
AMP_FAULT
I
Fault detection signal input from the power ampli
fi
er “L”: fault
11
AMP_SCL
O
I2C clock signal output to the power ampli
fi
er
12
AMP_SDA
I/O
Two-way I2C data bus with the power ampli
fi
er
13
INTP3
O
Muting on/off control signal output terminal “L”: muting on
14 to 17
NC
-
Not used
18
TEMP_POW1
I
Temperature measurement terminal Not used
19
TEMP_POW2
I
Temperature measurement terminal for power supply section (A/D input)
20
TEMP
I
Temperature measurement terminal (A/D input)
21
TEMP_AMP
I
Temperature measurement terminal for ampli
fi
er section (A/D input)
22
MUTE
O
Muting control signal output terminal Not used
23
DCDC_ON
O
Power on/off control signal output terminal for DC/DC converter “H”: power on
24
TOOL0
I/O
Firmware update mode setting terminal “L”: update mode Fixed at “H” in this unit
