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Reads a 'val' field, masked and shifted, given by mask 'field_mask'.

Files

lib_def.h

Prototype

          DEF_BIT_FIELD_RD(val, field_mask);

Arguments

val

Value to a read from.

field_mask

Mask of field to read.

Returned Value

Field value, masked and right-shifted to bit position 0.

Required Configuration

None.

Notes / Warnings

  1. 'field_mask' argument must NOT be 0.
  2. 'field_mask' argument must contain a mask with contiguous set bits.
  3. 'val' & 'field_mask' SHOULD be unsigned integers.
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