10.3.10 Table Pointer Operations

To read and write program memory, there are two operations that allow the processor to move bytes between the program memory space and the data RAM:

Table Read (TBLRD*)
Table Write (TBLWT*)

The SFR registers associated with these operations include:

TABLAT register
TBLPTR registers

The program memory space is 16 bits wide, while the data RAM space is eight bits wide. The TBLPTR registers determine the address of one byte of the NVM memory. Table reads move one byte of data from NVM space to the TABLAT register, and table writes move the TABLAT data to the buffer RAM ready for a subsequent write to NVM space with the NVM controls.