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CRX-330/NS-BP100
Pin
Port Name
No.
45 P51/WRH/BHE
46 P50/WRL/WR
47 P47/CS3/TXD7/SDA7
48 P46/CS2/RXD7/SCL7
49 P45/CS1/CLK7
50 P44/CS0/CTS7/RTS7
51 P43/A19
52 P42/A18
53 P41/A17
54 P40/A16
55 P37/A15
56 P36/A14
57 P35/A13
58 P34/A12
59 P33/A11
60 P32/A10
61 P31/A9
62 Vcc2
63 P30/A8
64 Vss
65 P27/A7/AN27
66 P26/A6/AN26
67 P25/A5/AN25/INT7
68 P24/A4/AN24/INT6
69 P23/A3/AN23
70 P22/A2/AN22
71 P21/A1/AN21
72 P20/A0/AN20
73 P17/D15/INT5
74 P16/D14/INT4
75 P15/D13/INT3
76 P14/D12
77 P13/D11/TXD6/SDA6
78 P12/D10/RXD6/SCL6
79 P11/D9/CLK6
80 P10/D8/CTS6/RTS6
81 P07/D7/AN07
82 P06/D6/AN06
83 P05/D5/AN05
84 P04/D4/AN04
85 P03/D3/AN03
86 P02/D2/AN02
87 P01/D1/AN01
36
Function Name
I/O
(P.C.B.)
Reset for iPod certified chip
ICP_N_RST
O
47k pull-down
/CE
I
iPod certified chip/DSP communication I2C
DSP_SDA
SIO
+3.3V/3.3k-ohms pull-up
iPod certified chip/DSP communication I2C
DSP_SCL
SO
+3.3V/3.3k-ohms pull-up
CD_OPEN
O
CD tray OPEN control
CD_CLOSE
O
CD tray CLOSE control
USB_DET
I
USB detection / 47k pull-down
DSP_N_RST
O
HP_DET
I
Headphones detect
HP_MUTE
O
Headphones mute control
–
O
–
O
P35
O
–
O
–
O
Analog audio input selector control
AMP_MUTE
O
D-AMP mute control / +3.3A/100k pull-up
AMP_SLEEP
O
D-AMP sleep control / +3.3A/100k pull-up
Vcc
MCU Power supply +3.3V of microprocessor
–
O
Vss
MCU Ground of microprocessor
ON/OFF control of USB power supply
USB_N_PON
O
Used for open drain / Low = ON
USB excess current detection flag
USB_N_OC
I
Low = Excess current detected
AMP_PRT
IRQ
D-AMP error detection / Low = Error / +3.3A/100k pull-up
CD tracking gain select control
CD_SPEED
O
Usually: Hi output
While CD playing: Low under condition of Vol = 50
SW_MUTE
O
KEY2
AD
VOL_RB
I
VOL_RA
I
PWR_DET
IRQ
Power detected
P_SW
IRQ
Power switch detection / 47k pull-down
REMOTE
IRQ
Remote control pulse reception / +3.3M/47k-ohms pull-up
DAB_N_RST
O
DAB reset control
DAB_SDA
SO
DAB communication I2C
DAB_SCL
SI
DAB communication I2C
STBY
O
ON/OFF control of power line for CD, USB
3.3D_PON
O
Hi = ON / Spare
TUN_MUTE
O
TUNER MUTE control / 3.3V to 5.0V conversion
TUN_ST
I
TUNER STEREO detection input / 5.0V to 3.3V conversion
TUN_N_TUND
I
TUNER TUNED input / 5.0V to 3.3V conversion
FL_N_CS
O
FL driver chip select
FL_N_RST
O
FL driver reset
ON/OFF control of VP power supply for FL
Hi = ON
FL_PON
O
47k pull-down
ON/OFF control of DC-DC for CD/USB
Used also for CLK output ON/OFF of RTC
PRY_CTRL
O
Power relay control / 47k pull-down
Detail of Function
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