NRF52811-QCAA-R7 datasheet(232/444 Pages) NORDIC

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Peripherals

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

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

Access

Field

Value ID

Value

Description

RW EDLVL

[0..127]

IEEE 802.15.4 energy detect level

an 8-bit saturating multiplication by factor ED_RSSISCALE, as

shown in the code example for ED sampling

6.14.15.76 CCACTRL

Address offset: 0x66C

IEEE 802.15.4 clear channel assessment control

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

D D D D D D D D C C C C C C C C B B B B B B B B

A A A

Reset 0x052D0000

0 0 0 0 0 1 0 1 0 0 1 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Access

Field

Value ID

Value

Description

RW CCAMODE

CCA mode of operation

EdMode

Energy above threshold

Will report busy whenever energy is detected above

CCAEDTHRES

CarrierMode

Carrier seen

Will report busy whenever compliant IEEE 802.15.4 signal is

seen

CarrierAndEdMode

Energy above threshold AND carrier seen

CarrierOrEdMode

Energy above threshold OR carrier seen

EdModeTest1

Energy above threshold test mode that will abort when first

ED measurement over threshold is seen. No averaging.

RW CCAEDTHRES

CCA energy busy threshold. Used in all the CCA modes

except CarrierMode.

Must be converted from IEEE 802.15.4 range by dividing by

factor ED_RSSISCALE - similar to EDSAMPLE register

RW CCACORRTHRES

CCA correlator busy threshold. Only relevant to

CarrierMode, CarrierAndEdMode, and CarrierOrEdMode.

RW CCACORRCNT

Limit for occurances above CCACORRTHRES. When not

equal to zero the corrolator based signal detect is enabled.

6.14.15.77 DFEMODE

Address offset: 0x900

Whether to use Angle-of-Arrival (AOA) or Angle-of-Departure (AOD)

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

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

Access

Field

Value ID

Value

Description

RW DFEOPMODE

Direction finding operation mode

Disabled

Direction finding mode disabled

AoD

Direction finding mode set to AoD

AoA

Direction finding mode set to AoA

4454_140 v1.0

232

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