Panasonic CQ-RXBT490U - Page 8

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16 PIO[14] Programmable input/output line. O 0
17 PIO[8] Programmable input/output line. O 0
18 PIO[7] Programmable input/output line. O 0
19 PIO[6] Programmable input/output line. O 0
20 PIO[5] Programmable input/output line. O 0
21 PIO[4] Programmable input/output line. O 0
22 PCM_IN Synchronous data input. I 0
23 PCM_CLK Synchronous data clock. O 0
24 PCM_OUT Synchronous data output. O 0
25 PCM_SYNC Synchronous data sync. O 0
26 SPI_MOSI SPI data input. I 0
27 SPI_CLK SPI clock. I 0
28 SPI_CSB Chip select for Serial Peripheral
Interface (SPI), active low.
I2.88
29 SPI_MISO SPI data output. O 0
30 LED[0] LED driver. O 0
31 LED[1] LED driver. O 0
32 VREGIN_H Input to internal high-voltage linear
regulator. (2.5V-4.9V)
I3.05
33 VREGEN_H Take high to enable high-voltage
linear regulator and switch-mode
regulator.
I3.05
34 VREGOUT_H High-voltage linear regulator output.
(1.8V out)
O1.84
35 N.C. Not connection. O 0
36 GND Digital Ground. GND 0
37 VDD_CHG Lithium ion/polymer battery charger
input. (4.5V-6.5V)
I0
38 VDD_BAT Lithium ion/polymer battery positive
terminal.Battery charger output and
input to switch-mode regulator.
(4.2V out)
O0
39 GND Digital Ground. GND 0
40 MIC_BIAS Microphone bias. I 0
41 MIC_R_P Microphone input positive,right. I 0
42 MIC_R_N Microphine input negative,right. I 0
43 MIC_L_P Microphone input positive,left. I 0
44 MIC_L_N Microphone input negative,left. I 0
45 AGND Analogue Ground. GND 0
46 VDD_AUDIO Positive supply output for audio
circuitry and 1.5V regulated output.
(from internal low-voltage regulator)
O1.51
47 SPK_R_N Speaker output negative,right. O 0
48 SPK_R_P Speaker output positive,right. O 0
49 SPK_L_N Speaker output negative,left. O 0.71
50 SPK_L_P Speaker output positive,left. O 0.71
51 PIO[3] Programmable input/output line. O 0
52 PIO[1] Programmable input/output line.
(external TXEN)
O0
53 PIO[2] Programmable input/output line. O 0
54 PIO[0] Programmable input/output line.
(external RXEN)
O0
55 GND Digital Ground. GND 0
56 GND Digital Ground. GND 0
57 ANT RF out. O 0
58 GND Digital Ground. GND 0
59 AIO[0] Analogue programmable input/out
line.
O0
60 VDD_ANA Positive supply output for analogue
circuitry and 1.5V regulated output.
(from internal low-voltage regulator)
O1.48
61 AIO[0] Analogue programmable input/
output line.
O0
62 GND Digital Ground. GND 0
63 USB_DP USB data plus with selectable
internal 1.5kΩ pull-up resistor.
I3.04
64 USB_DN USB data minus. I 0
Pin.
No.
PORT Description I/O (V)
cqrxbt490u.book Page 8 Friday, April 6, 2012 9:48 AM