NRF52810-QFAA-R datasheet(53/483 Pages) NORDIC

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Core components

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

RW Field

Value Id

Value

Description

ERASEALLSTATUS

Status register for the ERASEALL operation

Ready

ERASEALL is ready

Busy

ERASEALL is busy (on-going)

4.8.2.1.4 APPROTECTSTATUS

Address offset: 0x00C

Status register for access port protection

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

RW Field

Value Id

Value

Description

APPROTECTSTATUS

Status register for access port protection

Enabled

Access port protection enabled

Disabled

Access port protection not enabled

4.8.2.1.5 IDR

Address offset: 0x0FC

CTRL-AP Identification Register, IDR

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

E E E E D D D D C C C C C C C B B B B

A A A A A A A A

Reset 0x02880000

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

RW Field

Value Id

Value

Description

APID

AP Identification

CLASS

Access Port (AP) class

NotDefined

0x0

No defined class

MEMAP

0x8

Memory Access Port

JEP106ID

JEDEC JEP106 identity code

JEP106CONT

JEDEC JEP106 continuation code

REVISION

Revision

4.8.2.2 Electrical specification

4.8.2.2.1 Control access port

Symbol

Description

Min.

Typ.

Max.

Units

Rpull

Internal SWDIO and SWDCLK pull up/down resistance

kΩ

4.8.3 Debug interface mode

Before the external debugger can access the CPU's access port (AHB-AP) or the Control Access Port (CTRL-

AP), the debugger must first request the device to power up via CxxxPWRUPREQ in the SWJ-DP.

As long as the debugger is requesting power via CxxxPWRUPREQ, the device will be in debug interface

mode. If the debugger is not requesting power via CxxxPWRUPREQ, the device will be in normal mode.

4430_161 v1.0

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