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Fields

Fields define the bit-packing layout within a register.

Field Object Structure​

FieldRequiredTypeDescription
symbolYesStringThe programmatic name for the field (e.g., EN).
bitsYesList[Integer]The bit range as [high, low] (e.g., [7, 7] or [15, 12]).
nameRecommendedStringFull name of the field.
descriptionRecommendedStringDocumentation for the field.
accessNoList[AccessCode]Overrides the default register access.
enumNoStringThe symbol of a global Enum to link to this field.
resetRecommendedString or IntThe reset value for this specific field. Can be a number or an Enum Value name.
formatNoFormatObjDefines data representation (signed/unsigned) and units.

Access Codes​

CodeMeaningExplanation
naNo accessGenerally should not be used, registers that have no access should not be included
rReadable
rclrRead to Clear
rsetRead to Set
wWritable
wosetWrite 1 to Set (Self resetting)Denotes self resetting as typically writing a 1 performs a set
woclrWrite 1 to Clear
wotogWrite 1 to Toggle
wzsetWrite 0 to Set
wzclrWrite 0 to Clear (Self resetting)Denotes self resetting as typically writing a 0 performs a clear
wztogWrite 0 to Toggle
wclrWrite to ClearDenotes writing any value causes a clear
wsetWrite to SetDenotes writing any value causes a set

Format Object Structure​

The format block is used to describe the raw data representation and provide documentation units. It does not generate scaling logic.

FieldRequiredTypeDescription
representationYesStringCan be one of the following options:
1. us: Unsigned e.g. uint8_t or uint32_t
2. tc: Two's Compliment e.g. int8_t or int32_t, sign extended
3. sm: Sign Magnitude e.g. MSB is the sign bit
4. bd: Binary Coded Decimal e.g. Each 4 bits represent a digit from 0-9.
unitNoStringThe real-world unit of measurement (e.g., "Celsius", "Volts").
scaleNoFloatThe magnitude scalar applied to the units. For example, 0.001 would be used in conjunction with unit: "Celsius" to denote millicelsius.

Example (Field with Format):

- symbol: TEMP
bits: [ 15, 4 ]
access: [ r ]
description: "Temperature result."
format:
representation: tc
unit: "Celsius"
scale: 1.0