CAS-1
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• IC Pin Function Description
MAIN BOARD IC652 R7S7200052CFP (AUDIO DSP, SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VBUS-OVR-DET
I
VBUS over current detection signal input terminal “L”: over current
2
DAC-ZERO-DATA
I
Zero data
fl
ag input from the D/A converter “H”: zero data
3
MTK-STATUS
I
Standby status signal input from the NETWORK board “H”: standby
4
MTK-CA7EN
O
Standby request signal output to the NETWORK board “L”: standby
5
MTK-RESET
O
Reset signal output to the NETWORK board “L”: reset
6
MTK-MUTE-REQ
I
Muting request signal input from the NETWORK board
7
Vcc
-
Power supply terminal (+1.2V)
8
DAC-XRST
O
Reset signal output to the D/A converter “L”: reset
9
Vss
-
Ground terminal
10
HP-DET
I
Headphone insert detection signal input terminal “H”: headphone is inserted
11
PVcc
-
Power supply terminal (+3.3V)
12
HOKUTO-XRST
O
Reset signal output to the audio codec “L”: reset
13
FAN-CONTROL-2
O
Fan motor drive signal output terminal “H”: fan motor on
14
HOKUTO-XLDO-EN
O
LDO enable signal output to the audio codec “L”: LDO on
15
FAN-CONTROL-1
O
Fan motor drive signal output terminal Not used
16
DAC-DCDC-EN
O
Power on/off control signal output terminal for headphone ampli
fi
er section to the DC/DC
converter “H”: power on
17
MTK-3.3V-STBY-EN
O
Power on/off control signal output terminal for network standby “H”: power on
18
Vss
-
Ground terminal
19
MTK-5V_Module_EN
O
Not used
20
USB-SEL
O
USB A selection signal output terminal
“L”: no connection, “H”: connection (when pin 27 USB-OE is “L”)
21
Vcc
-
Power supply terminal (+1.2V)
22
MTK-A-BUSY
O
Busy signal output to the NETWORK board
23
Vss
-
Ground terminal
24
AUDO-BCLK3
I
Bit clock signal input from the NETWORK board
25
PVcc
-
Power supply terminal (+3.3V)
26
AUDIO-LRCK3
I
L/R sampling clock signal input from the NETWORK board
27
USB-OE
O
USB A selection signal output terminal
“L”: connection (when pin 20 USB-SEL is “H”), “H”: no connection
28
AUDIO-DIN3
I
Audio data input from the NETWORK board
29
AUDIO-BCLK
O
Bit clock signal output to the audio codec and D/A converter
30
AUDIO-LRCK
O
L/R sampling clock signal output to the audio codec and D/A converter
31
Vss
-
Ground terminal
32
AUDIO-DOUT0
O
Audio data output to the audio codec and D/A converter
33
LEDDRV-XOE
O
Output enable signal output to the LED driver
34
Vcc
-
Power supply terminal (+1.2V)
35
SPK-DET
I
Speaker connection detection signal input terminal
“L”: both L/R channel speakers are connected
36
Vss
-
Ground terminal
37
CKIO
-
Not used
38
AMP-D+3.3V-EN
O
Power on/off control signal output terminal for speaker ampli
fi
er section “H”: power on
39
PVcc
-
Power supply terminal (+3.3V)
40
MTK-UART-RXD
I
Serial data input from the NETWORK board
41
MTK-UART-TXD
O
Serial data output to the NETWORK board
42
BT-PAIR-KEY
I
BLUETOOTH pairing key input terminal
43
DEBUG-TXD
O
Serial data output terminal for debug
44
GVDD-12V-EN
O
Power on/off control signal output terminal for digital power ampli
fi
er “H”: power on
45
POWER-KEY
I
Power key input terminal
46
Vss
-
Ground terminal
47
LED-BT-DARK
O
BLUETOOTH LED drive signal output terminal (for dark) “H”: LED on
48
AUDIO-SW
O
Output destination selection signal output terminal for audio signal
“L”: D/A converter, “H”: audio codec
49
AC-CUT
I
AC cut on/off detection signal input terminal “L”: AC cut on
50
PVcc
-
Power supply terminal (+3.3V)
51
LEDDRV-LAT
O
Serial latch signal output to the LED driver
52
LED-BT-STANDBY
O
BLUETOOTH standby status indicator LED drive signal output terminal “H”: LED on
Summary of Contents for CAS-1
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Page 97: ...MEMO CAS 1 17 ...
