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• IC Pin Function Description
MAIN BOARD IC101 R5F3650KCDZ94FB (SYSTEM CONTROLLER)
Pin No.
Pin Name
1
NOSE_SW
2
SIRCS
3 to 5
NC
6
BYTE
7
CNVSS
8
XIN
9
XOUT
10
RESET
11
OSCOUT
12
VSS
13
OSCIN
14
VCC1
15
NMI
16
CMD_ERR
17
BUSY
18
SYSRST
19
CE
20
SDI
21
SCK
22
SDO
23
USB_IN
24
SYNC_OUT
25
WDT_MON
26
BEEP
27, 28
NC
29
FW_TXD
30
FW_RXD
31
FW_CLK
32
FW_BUSY
33 to 38
NC
39
EPM
DEBUG_1 to
40 to 43
DEBUG_4
44
CE
45
HIT2_SDA
46
HIT2_SCL
47
HIT2_RESET
48
EN_USB
49
NC
50
FLT_USB
51
EN_SYS
52
IPOD
53
NC
54
TELATT
55
ACC_IN
56
ATT
57
AMP_MUTE
58
AMPSTB
59
ILL_ON
60
VCC2
61
NC
62
VSS
63, 64
NC
65
BT_MUTE (A50)
66
BU_IN
67 to 71
NC
I/O
I
Front panel remove/attach detection signal input terminal
I
Remote control signal input from the front panel block
-
Not used
I
External data bus width selection signal input terminal
I
Processor mode selection signal input terminal
I
Sub system clock input terminal (32.768 kHz)
O
Sub system clock output terminal (32.768 kHz)
System reset signal input from the reset signal generator
I
For several hundreds msec. after the power supply rises, "L" is input, then it change to "H"
O
Main system clock output terminal (7.92 MHz)
-
Ground terminal
I
Main system clock input terminal (7.92 MHz)
-
Power supply terminal (+3.3V)
I
Non-maskable interrupt signal input terminal
I
Command error signal input from the audio DSP
I
Busy signal input from the audio DSP
O
Reset signal output to the audio DSP
O
Chip enable signal output to the audio DSP
I
Serial data input from the audio DSP
O
Serial data transfer clock signal output to the audio DSP
O
Serial data output to the audio DSP
I
USB device detection signal input from the audio DSP
O
Frequency control signal output to the DC/DC converter
I
Watch-dog timer status monitor input from the audio DSP
O
Beep sound output to the power amplifi er
-
Not used
O
Serial data output terminal for fl ash writing
I
Serial data input terminal for fl ash writing
I
Serial data transfer clock signal input terminal for fl ash writing
O
Busy signal output terminal for fl ash writing
-
Not used
O
EPM signal output terminal
O
Debug terminal
Not used
O
Chip enable signal output terminal
I/O
Two-way serial data bus with the tuner unit
O
Serial data transfer clock signal output to the tuner unit
O
Reset signal output to the tuner unit
O
USB power on/off control signal output to the DC/DC converter
-
Not used
I
USB power fault status signal input from the DC/DC converter
O
VBUS power on/off control signal output to the DC/DC converter
O
Not used
-
Not used
I
Telephone attenuator detection signal input terminal
I
Accessory power detection signal input terminal
O
Audio muting on/off control signal output terminal
O
Amplifi er muting on/off control signal output to the power amplifi er
O
Standby signal output to the power amplifi er
O
Power on/off control signal output terminal for illumination LED
-
Power supply terminal (+3.3V)
-
Not used
-
Ground terminal
-
Not used
I
Muting on/off control signal input from the Bluetooth section
I
Back-up power detection signal input terminal
-
Not used
DSX-A40UE/A40UI/A42UI
Description
"L": front panel is attached
"L": reset
Fixed at "H" in this unit
"H": error
"L": busy
"L": reset
"L": USB device is connected
Fixed at "L" in this unit
Fixed at "H" in this unit
"L": reset
Fixed at "L" in this unit
"H": muting on
"L": standby
"H": power on
"H": power on
"H": muting on
"H": power on
Not used
21
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