Definitions for "Bit field"
A contiguous group of bits within a binary pattern; they are specified by a starting bit position and length. The functions IBSET, IBCLR, BTEST, and IBITS, and the subroutine MVBITS operate on bit fields.
a field containing only binary characters
a contiguous group of bits within a binary value
an element of a structure that is defined in terms of bits
a structure member that contains a specified number of bits
A member of a structure or union that contains a specified number of bits.