Register bits in the data sheet are named by combining a bit function
abbreviation with the peripheral abbreviation. This format, also called a
Long Bit Name, is used in both the register summary and
register definition sections of the data sheet. For example, SPEN is the
name for the Serial Port Enable bit, as shown in Figure 1-5.
Figure 1. RCxSTA – Receive Status and Control Register
Since the prefix for the peripheral module type is unique, each bit name described in the data sheet is unique.
The device header file offers some register bits a Short Bit Name alternative consisting of only the bit function abbreviation. Since this is defined in the context of a bit union for a specific register, the bit access remains unique. For further details on how to access a bit using the short or long naming convention, refer to 2.1.1 Register Unions.