SI4020 데이터 시트보기 (PDF) - Silicon Laboratories

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SI4020

Universal ISM Band FSK Transmitter

Silicon Laboratories 

Si4020

11. Status Register Read Command

bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

1100110000000000

POR

--

With this command, it is possible to read the chip’s status register through the nIRQ pin. This command clears the last serviced

interrupt and processing the next pending one will start (if there is any).

Status Register Read Sequence

nSEL

SCK

SDI

nIRQ

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

instruction

status out

POR

PB1

PB2

PB3

PB4

LBD WK-UP nIRQ

20

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