NRF52820-QDAA-R datasheet(96/437 Pages) NORDIC

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Peripherals

Offset

Description

ACL[7].UNUSED0

0x87C

Reserved

Table 26: Register overview

6.3.1.1 ACL[n].ADDR (n=0..7)

Address offset: 0x800 + (n × 0x10)

Start address of region to protect. The start address must be word-aligned.

This register can only be written once.

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 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 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

RW1 ADDR

Start address of flash region n. The start address must point

to a flash page boundary.

6.3.1.2 ACL[n].SIZE (n=0..7)

Address offset: 0x804 + (n × 0x10)

Size of region to protect counting from address ACL[n].ADDR. Write '0' as no effect.

This register can only be written once.

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 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 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

RW1 SIZE

Size of flash region n in bytes. Must be a multiple of the

flash page size.

6.3.1.3 ACL[n].PERM (n=0..7)

Address offset: 0x808 + (n × 0x10)

Access permissions for region n as defined by start address ACL[n].ADDR and size ACL[n].SIZE

This register can only be written once.

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

C B

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

RW1 WRITE

Configure write and erase permissions for region n. Write '0'

has no effect.

Enable

Allow write and erase instructions to region n

Disable

Block write and erase instructions to region n

RW1 READ

Configure read permissions for region n. Write '0' has no

effect.

Enable

Allow read instructions to region n

Disable

Block read instructions to region n

4463_156 v1.0

NRF52820-QDAA-R Datasheet(PDF) 96 Page - Nordic Semiconductor

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