Byte Addressing Modes - Texas Instruments TMS320C28x Reference Manual

5.10 Byte Addressing Modes

Syntax
*+XARn[AR0]
*+XARn[AR1]
*+XARn[3bit]
Description
32BitDataAddr(31:0) = XARn + Offset (Offset =
AR0/AR1/3bit)
if( Offset == Even Value )
Access LSByte Of 16−bit Memory Location;
Leave MSByte untouched;
if( Offset == Odd Value )
Access MSByte Of 16−bit Memory Location;
Leave LSByte untouched;
Note: For all other addressing modes, only the LSByte of the addressed location is ac-
cessed, the MSByte is left untouched.
Byte Addressing Modes
C28x Addressing Modes 5-31