NRF52811-QCAA-R datasheet(12/444 Pages) NORDIC

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2.3 Register tables

Individual registers are described using register tables. These tables are built up of two sections. The first

three colored rows describe the position and size of the different fields in the register. The following rows

describe the fields in more detail.

2.3.1 Fields and values

The Id (Field Id) row specifies the bits that belong to the different fields in the register. If a field has

enumerated values, then every value will be identified with a unique value id in the Value Id column.

A blank space means that the field is reserved and read as undefined, and it also must be written as

to secure forward compatibility. If a register is divided into more than one field, a unique field name is

specified for each field in the Field column. The Value Id may be omitted in the single-bit bit fields when

values can be substituted with a Boolean type enumerator range, e.g. true/false, disable(d)/enable(d), on/

off, and so on.

Values are usually provided as decimal or hexadecimal. Hexadecimal values have a

0x prefix, decimal

values have no prefix.

The Value column can be populated in the following ways:

• Individual enumerated values, for example 1, 3, 9.

• Range of values, e.g. [0..4], indicating all values from and including 0 and 4.

• Implicit values. If no values are indicated in the Value column, all bit combinations are supported, or

alternatively the field's translation and limitations are described in the text instead.

If two or more fields are closely related, the Value Id, Value, and Description may be omitted for all but

the first field. Subsequent fields will indicate inheritance with '..'.

A feature marked Deprecated should not be used for new designs.

2.4 Registers

Offset

Description

DUMMY

0x514

Example of a register controlling a dummy feature

Table 2: Register overview

2.4.1 DUMMY

Address offset: 0x514

Example of a register controlling a dummy feature

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

C C C

A A

Reset 0x00050002

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

Access

Field

Value ID

Value

Description

RW FIELD_A

Example of a field with several enumerated values

Disabled

The example feature is disabled

NormalMode

The example feature is enabled in normal mode

ExtendedMode

The example feature is enabled along with extra

functionality

4454_140 v1.0

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