DSX-A50BT
27
• IC Pin Function Description
MAIN BOARD IC101 R5F3650KCDZ98FB (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NOSE_SW
I
Front panel remove/attach detection signal input terminal “L”: front panel is attached
2
SIRCS
I
Remote control signal input from the remote control receiver
3 to 5
NC
-
Not used
6
BYTE
I
External data bus width selection signal input terminal
7
CNVSS
I
Processor mode selection signal input terminal
8
XIN
I
Sub system clock input terminal (32.768 kHz)
9
XOUT
O
Sub system clock output terminal (32.768 kHz)
10
RESET
I
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it change to “H”
11
OSCOUT
O
Main system clock output terminal (7.92 MHz)
12
VSS
-
Ground terminal
13
OSCIN
I
Main system clock input terminal (7.92 MHz)
14
VCC1
-
Power supply terminal (+3.3V)
15
NMI
I
Non-maskable interrupt signal input terminal Fixed at “H” in this unit
16
CMD_ERR
I
Command error signal input from the USB controller
17
BUSY
I
Busy signal input from the USB controller
18
SYSRST
O
Reset signal output to the USB controller “L”: reset
19
CE
O
Chip enable signal output to the USB controller
20
SDI
I
Serial data input from the USB controller
21
SCK
O
Serial data transfer clock signal output to the USB controller
22
SDO
O
Serial data output to the USB controller
23
USB_IN
I
USB device detection signal input from the USB controller
24
SYNC_OUT
O
Frequency control signal output to the DC/DC converter
25
WDT_MON
I
Watch-dog timer status monitor input from the USB controller
26
BEEP
O
Beep sound output to the power amplifi er
27, 28
NC
-
Not used
29
FW_TXD
O
Serial data output terminal for fl ash writing
30
FW_RXD
I
Serial data input terminal for fl ash writing
31
FW_CLK
I
Serial data transfer clock signal input terminal for fl ash writing
32
FW_BUSY
O
Busy signal output terminal for fl ash writing
33 to 38
NC
-
Not used
39
EPM
O
EPM signal output terminal Fixed at “L” in this unit
40 to 43
DEBUG_1 to
DEBUG_4
O
Debug terminal Not used
44
CE
O
Chip enable signal output terminal Fixed at “H” in this unit
45
HIT2_SDA
I/O
Two-way serial data bus with the tuner unit
46
HIT2_SCL
O
Serial data transfer clock signal output to the tuner unit
47
HIT2_RESET
O
Reset signal output to the tuner unit “L”: reset
48
EN_USB
O
USB power switch on/off control signal output to the DC/DC converter “H”: switch on
49
NC
-
Not used
50
FLT_USB
I
USB power supply switch fault status signal input from the DC/DC converter
51
EN_SYS
O
VBUS power supply on/off control signal output to the DC/DC converter “H”: power on
52
IPOD
O
Not used
53
NC
-
Not used
54
TELATT
I
Telephone attenuator detection signal input terminal Fixed at “L” in this unit
55
ACC_IN
I
Accessory power detection signal input terminal
56
ATT
O
Audio muting on/off control signal output terminal “H”: muting on
57
AMP_MUTE
O
Amplifi er muting on/off control signal output to the power amplifi er “H”: muting on
58
AMPSTB
O
Standby signal output to the power amplifi er “L”: standby
59
ILL_ON
O
Power supply on/off control signal output terminal for illumination LED “H”: power on
60
VCC2
-
Power supply terminal (+3.3V)
61
NC
-
Not used
62
VSS
-
Ground terminal
63
PIC_ERR
I
Error detection signal input from the power amplifi er “L”: error
64
NC
-
Not used
65
BT_MUTE (A50)
I
Muting on/off control signal input from the Bluetooth section “H”: muting on
66
BU_IN
I
Back-up power detection signal input terminal
Summary of Contents for DSX-A50BT
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