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NRF52811-QCAA-R7 Datasheet(PDF) 66 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) 66 Page - Nordic Semiconductor

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Power and clock management
5.4.3 Registers
Base address
Peripheral
Instance
Description
Configuration
0x40000000
CLOCK
CLOCK
Clock control
Table 18: Instances
Register
Offset
Description
TASKS_HFCLKSTART
0x000
Start HFCLK crystal oscillator
TASKS_HFCLKSTOP
0x004
Stop HFCLK crystal oscillator
TASKS_LFCLKSTART
0x008
Start LFCLK source
TASKS_LFCLKSTOP
0x00C
Stop LFCLK source
TASKS_CAL
0x010
Start calibration of LFRC oscillator
TASKS_CTSTART
0x014
Start calibration timer
TASKS_CTSTOP
0x018
Stop calibration timer
EVENTS_HFCLKSTARTED
0x100
HFCLK oscillator started
EVENTS_LFCLKSTARTED
0x104
LFCLK started
EVENTS_DONE
0x10C
Calibration of LFCLK RC oscillator complete event
EVENTS_CTTO
0x110
Calibration timer timeout
INTENSET
0x304
Enable interrupt
INTENCLR
0x308
Disable interrupt
HFCLKRUN
0x408
Status indicating that HFCLKSTART task has been triggered
HFCLKSTAT
0x40C
HFCLK status
LFCLKRUN
0x414
Status indicating that LFCLKSTART task has been triggered
LFCLKSTAT
0x418
LFCLK status
LFCLKSRCCOPY
0x41C
Copy of LFCLKSRC register, set when LFCLKSTART task was triggered
LFCLKSRC
0x518
Clock source for the LFCLK
CTIV
0x538
Calibration timer interval
Retained
Table 19: Register overview
5.4.3.1 TASKS_HFCLKSTART
Address offset: 0x000
Start HFCLK crystal oscillator
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
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
W TASKS_HFCLKSTART
Start HFCLK crystal oscillator
Trigger
1
Trigger task
5.4.3.2 TASKS_HFCLKSTOP
Address offset: 0x004
Stop HFCLK crystal oscillator
4454_140 v1.0
66



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