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NRF24L01P-R データシート(PDF) 52 Page - Nordic Semiconductor

部品番号 NRF24L01P-R
部品情報  Single Chip 2.4GHz Transceiver
PDF  78 Pages
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メーカー  NORDIC [Nordic Semiconductor]
ホームページ  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF24L01P-R データシート(HTML) 52 Page - Nordic Semiconductor

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Revision 1.0
Page 52 of 78
nRF24L01+ Product Specification
Note:
The 3 bit pipe information in the STATUS register is updated during the IRQ pin high to low
transition. The pipe information is unreliable if the STATUS register is read during an IRQ pin
high to low transition.
8.3.2
SPI timing
SPI operation and timing is shown in Figure 26. to Figure 28. and in Table 22. to Table 27.. nRF24L01+
must be in a standby or power down mode before writing to the configuration registers.
In Figure 26. to Figure 28. the following abbreviations are used:
Table 21. Abbreviations used in Figure 26. to Figure 28.
Figure 26. SPI read operation
Figure 27. SPI write operation
Figure 28. SPI NOP timing diagram
Abbreviation
Description
Cn
SPI command bit
Sn
STATUS register bit
Dn
Data Bit (Note: LSByte to MSByte, MSBit in each byte first)
C7
C6
C5
C4
C3
C2
C1
C0
S7
S6
S5
S4
S3
S2
S1
S0
D7
D6
D5
D4
D3
D2
D1
D0
D1 5
D1 4
D1 3
D1 2
D1 1
D1 0
D9
D8
CSN
SCK
MOSI
MISO
C7
C6
C5
C4
C3
C2
C1
C0
D7
D6
D5
D4
D3
D2
D1
D0
D1 5
D1 4
D1 3
D1 2
D1 1
D1 0
D9
D8
S7
S6
S5
S4
S3
S2
S1
S0
CSN
SCK
MOSI
MISO
C7
C6
C0
S7
S0
Tcdz
Tcd
Tcsd
Tdh
Tdc
Tcch
Tcl
Tcl
Tch
Tcc
Tch
Tcwh
Tcwh
CSN
SCK
MOSI
MISO



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