NRF52820-QDAA-R datasheet(219/437 Pages) NORDIC

219 / 437 page

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

B B B B B B B B B B B B

A A A A A 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 TSWITCHOFFSET

Signed value offset after the end of the CRC before starting

switching in number of 16M cycles

Decreasing TSWITCHOFFSET beyond the trigger of the AoA/

AoD procedure will have no effect

RW TSAMPLEOFFSET

Signed value offset before starting sampling in number of

16M cycles relative to the beginning of the REFERENCE state

- 12 µs after switching start

Decreasing TSAMPLEOFFSET beyond the trigger of the AoA/

AoD procedure will have no effect

6.12.15.82 SWITCHPATTERN

Address offset: 0x928

GPIO patterns to be used for each antenna

Maximum 8 GPIOs can be controlled. To secure correct signal levels on the pins, the pins must be

configured in the GPIO peripheral as described in Pin configuration.

If, during switching, the total number of antenna slots is bigger than the number of written patterns, the

RADIO loops back to the pattern used after the reference pattern.

A minimum number of three patterns must be written.

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 SWITCHPATTERN

Fill array of GPIO patterns for antenna control.

The GPIO pattern array size is 40 entries.

When written, bit n corresponds to the GPIO configured in

PSEL.DFEGPIO[n].

When read, returns the number of GPIO patterns

written since the last time the array was cleared. Use

CLEARPATTERN to clear the array.

6.12.15.83 CLEARPATTERN

Address offset: 0x92C

Clear the GPIO pattern array for antenna 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

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 CLEARPATTERN

Clears GPIO pattern array for antenna control

Clear

Clear the GPIO pattern

4463_156 v1.0

219

NRF52820-QDAA-R Datasheet(PDF) 219 Page - Nordic Semiconductor

NRF52820-QDAA-R Datasheet(HTML) 219 Page - Nordic Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL