Advanced Embedded Systems Interview Question:

Explain me in which addressing mode is the DPTR register used?

Submitted by: Muhammad

☛ Data pointer register is used in the indexed addressing mode.
☛ It is used in accessing data from tne look-up table entries stored in ROM.
☛ SYNTAX: MOVC A, @A+DPTR
☛ Here c means the code (shows data elements are stored in code space of ROM).
☛ The contents of A are added to 16 bit DPTR to form the 16 bit address of the needed data.
Submitted by: Muhammad