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NRF52811-QCAA-R7 Datasheet(PDF) 338 Page - Nordic Semiconductor

Part # NRF52811-QCAA-R7
Description  nRF52811
PDF  444 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52811-QCAA-R7 Datasheet(HTML) 338 Page - Nordic Semiconductor

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Peripherals
6.23.8.20 TXD
Address offset: 0x51C
TXD register
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
A A A A A A A A
Reset 0x00000000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ID
Access
Field
Value ID
Value
Description
A
RW TXD
TXD register
6.23.8.21 FREQUENCY
Address offset: 0x524
TWI frequency. Accuracy depends on the HFCLK source selected.
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A
Reset 0x04000000
0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ID
Access
Field
Value ID
Value
Description
A
RW FREQUENCY
TWI master clock frequency
K100
0x01980000
100 kbps
K250
0x04000000
250 kbps
K400
0x06680000
400 kbps (actual rate 410.256 kbps)
6.23.8.22 ADDRESS
Address offset: 0x588
Address used in the TWI transfer
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
A A A A A A A
Reset 0x00000000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ID
Access
Field
Value ID
Value
Description
A
RW ADDRESS
Address used in the TWI transfer
6.23.9 Electrical specification
6.23.9.1 TWI interface electrical specifications
Symbol
Description
Min.
Typ.
Max.
Units
fTWI,SCL
Bit rates for TWI29
100
400
kbps
tTWI,START
Time from STARTRX/STARTTX task to transmission started
1.5
µs
29 High bit rates or stronger pull-ups may require GPIOs to be set as High Drive, see GPIO chapter for
more details.
4454_140 v1.0
338



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