RF-LINK INTERNATIONAL LIMITED CPR9851S 用户手册

6

pins

name

Function description

1

BT_ANT

BT antenna

2

GND

Ground connection

3

USB_DP

D-

4

USB_DM

D+

5

GPIO_3

GPIO port/IR receive port，pause button

6

GPIO_1

GPIO port，default TF card detective

7

UART2_RXD/GPIO_8

UART2 serial port also used for GPIO, no pause function

8

UART2_TXD/GPIO_13

UART2 no interrupt function

9

V_MMC

TF card power

10

V_PAD

2.98V output

11

SDAT1

TF data line

12

SDAT0

TF data line

13

SSD_CLK

TF clock

14

SSD_CMD

TF write or read control

15

SDAT3

TF data line

16

SDAT2

TF data line

17

RESETB_EXT

Reset port

18

PWRKEY_INT

software switch,high efficiency

19

GND

Ground connect

20

GND

Ground connect

21

VBAT

Power for module 3.4-4.2V

22

KEY_P

ADC press button

23

KEYIN_SENSE

ADC press button

24

CHG_IN

internal power charging (ask for extend external circuit)

25

GPIO_7

GPIO，fault LINE DECT ， support external suspend function

26

GPIO_17

GPIO， no external suspend function

27

AU_RCV_P

Audio positive output pole

28

AU_RCV_N

audio differential output pole

29

LINE_IN_L

AUX left line in

30

LINE_IN_R

AUX right line in

31

AU_HPL

left single-ended sound channel output

32

AU_HPR

right single-ended sound channel output

33

AU_MIC_N

MIC differential negative output pole

34

AU_MIC_P

MIC differential positive output pole

35

AGND

Analog ground