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Programing/ Nordic(BLE)

nrf51 Pin Function

nRF51 시리즈는 문서 종류가 너무 많다.

nRF51822_PS v3.1.pdf 

이런 문서에 Pin Function 내용이 있어 포스팅한다.

Pin

Pin name

Pin function

Description

1

 VDD

 Power

 Power supply.

2

 DCC

 Power

 DC/DC output voltage to external LC filter.

3

 P0.30

 Digital I/O

 General purpose I/O pin.

4

 P0.00
 AREF0

 Digital I/O
 Analog input

 General purpose I/O pin.
 ADC/LPCOMP reference input 0.

5

 P0.01
 AIN2

 Digital I/O
 Analog input

 General purpose I/O pin.
 ADC/LPCOMP input 2.

6

 P0.02
 AIN3

 Digital I/O
 Analog input

 General purpose I/O pin.
 ADC/LPCOMP input 3.

7

 P0.03
 AIN4

 Digital I/O
 Analog input

 General purpose I/O pin.
 ADC/LPCOMP input 4.

8

 P0.04
 AIN5

 Digital I/O
 Analog input

 General purpose I/O pin.
 ADC/LPCOMP input 5.

9

 P0.05
 AIN6

 Digital I/O
 Analog input

 General purpose I/O pin.
 ADC/LPCOMP input 6.

10

 P0.06
 AIN7
 AREF1

 Digital I/O
 Analog input
 Analog input

 General purpose I/O pin.
 ADC/LPCOMP input 7.
 ADC/LPCOMP reference input 1.

11

 P0.07

 Digital I/O

 General purpose I/O pin.

12

 VDD

 Power

 Power supply.

13

 VSS

 Power

 Ground (0 V).

14 to 22

 P0.08 to P0.16

 Digital I/O

 General purpose I/O pin.

23

 SWDIO/nRESET

 Digital I/O

 System reset (active low). Also hardware debug and flash
 programming I/O.

24

 SWDCLK

 Digital input

 Hardware debug and flash programming I/O.

25 to 28

 P0.17 to P0.20

 Digital I/O

 General purpose I/O pin.

29

 DEC2

 Power

 Power supply decoupling.

30

 VDD_PA

 Power output

 Power supply output (+1.6 V) for on-chip RF power amp.

31

 ANT1

 RF

 Differential antenna connection (TX and RX).

32

 ANT2

 RF

 Differential antenna connection (TX and RX).

33, 34

 VSS

 Power

 Ground (0 V).

35, 36

 AVDD

 Power

 Analog power supply (Radio).

37

 XC1

 Analog input

 Connection for 16/32 MHz crystal or external 16 MHz clock
 reference.

38

 XC2

 Analog output

 Connection for 16/32 MHz crystal.

39

 DEC1

 Power

 Power supply decoupling.

40 to 44

 P0.21 to P0.25

 Digital I/O

 General purpose I/O pin.

 45

 P0.26
 AIN0
 XL2

 Digital I/O
 Analog input
 Analog output

 General purpose I/O pin.
 ADC/LPCOMP input 0.
 Connection for 32.768 kHz crystal.

46

 P0.27
 AIN1
 XL1

 Digital I/O
 Analog input
 Analog input

 General purpose I/O pin.
 ADC/LPCOMP input 1.
 Connection for 32.768 kHz crystal or external 32.768 kHz
 clock reference.

47, 48

 P0.28 and P0.29

 Digital I/O

 General purpose I/O pin.