HCD-MX500i/MX550i
51
MAIN BOARD IC401 R5F364AEDFA (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
FL/LCD DO
O
Serial data output to the
fl
uorescent indicator tube driver
2
FL/LCD SCL
O
Serial data transfer clock signal output to the
fl
uorescent indicator tube driver
3
FL/LCD CS
O
Chip select signal output to the
fl
uorescent indicator tube driver
4
SIRCS
I
SIRCS signal input from the remote control receiver
5
BCo_SPI_DOUT
O
Serial data output terminal Not used
6
BCo_SPI_DIN
I
Serial data input terminal Not used
7
BCo_SPI_CLK
O
Serial data transfer clock signal output terminal Not used
8
BYTE
I
External data bus width selection signal input terminal
9
CNVss
I
Processor mode selection signal input terminal
10
Xcin
I
Sub system clock input terminal (32.768 kHz)
11
Xcout
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input terminal
13
Xout
O
Main system clock output terminal (5 MHz)
14
Vss
-
Ground terminal
15
Xin
I
Main system clock input terminal (5 MHz)
16
Vcc
-
Power supply terminal (+3.3V)
17
NMI
-
Not used
18
RDS-INT
I
RDS interrupt signal input from the tuner (FM) (MX500i: AEP/MX550i only)
19
SBSY
I
Subcode block sync signal input from the CD-MP3 processor
20
AC-CUT
I
AC cut on/off detection signal input terminal “L”: AC cut on
21
BCo_POWER
O
Power on/off control signal output terminal Not used
22
iPod CP IIC SCL
O
Serial data transfer clock signal output to the EEPROM
23
BCo_SPI_CS
O
Chip select signal output terminal Not used
24
iPod CP IIC SDA
O
Serial data output to the EEPROM
25
BCo_RESET
O
Reset signal output terminal Not used
26
iPod CP RESET
O
Reset signal output to the EEPROM
27
USB_RESET
O
System reset signal output to the USB controller “L”: reset (Except Canadian model only)
28
USB_CTS
I
Clear to send signal input from the USB controller (Except Canadian model only)
29, 30
no use
-
Not used
31
USB_TxD_OUT
O
Serial data output to the USB controller (Except Canadian model only)
32
USB_RxD_IN
I
Serial data input from the USB controller (Except Canadian model only)
33
USB_RTS
O
Ready to send signal output to the USB controller (Except Canadian model only)
34
S-MASTER_DCP
I
Over load detection signal input terminal
35
DAB TxD_OUT
O
Serial data output terminal for the DAB tuner module (MX550i only)
36
DAB RxD_IN
I
Serial data input terminal for the DAB tuner module (MX550i only)
37
S-MASTER_PG_MUTE
O
PG muting on/off control signal output to stream processor
38
S-MASTER_
SOFT_MUTE
O
Soft muting on/off control signal output to stream processor
39
S-MASTER_RESET
O
Reset signal output to the digital power ampli
fi
er
40
S-MASTER_DATA
O
Serial data output to the stream processor
41
LCD BACKLIGHT
O
LED drive signal output terminal Not used
42
S-MASTER_SHIFT
O
Serial data transfer clock signal output to the stream processor
43
S-MASTER_LATCH
O
Serial data latch pulse signal output to the stream processor
44
S-MASTER_NSPMUTE
O
NSP muting on/off control signal output to stream processor
45
S-MASTER_INIT
O
Reset signal output to the stream processor
46
STBY_LED
O
LED drive signal output terminal for STANDBY indicator
47
VOL IIC_SDA/E2P-SDA
O
Serial data output to the electrical volume
48
VOL IIC_CLK/E2P-CLK
O
Serial data transfer clock signal output to the electrical volume
49
DAB-POWER_3.3
O
Power supply on/off control signal output terminal for the DAB tuner module (+3.3V)
(MX550i only)
50
DAB-POWER_1.2
O
Power supply on/off control signal output terminal for the DAB tuner module (+1.2V)
(MX550i only)
51
ST_TUNED
I
Tuned detection signal input from the tuner (FM)
52
ST_CE
O
Chip enable signal output to the tuner (FM)
53
ST_DO
O
Serial data output to the tuner (FM)
54
ST_CLK
O
Serial data transfer clock signal output to the tuner (FM)
55
ST_DI/STEREO
I
Serial data input from the tuner (FM)
56
RDS_DATA
I
RDS data input from the tuner (FM) (MX500i: AEP/MX550i only)
57
CDM_OPEN_SW
I
Switch detection signal input terminal for loading section
