Texas Instruments TMS320C28x User Manual

CPU Registers
2-6
Figure 2−2. C28x Registers
6/7-bit
offset
†
SP[16]
DP[16]
AR0[16]
AR1[16]
AR2[16]
AR3[16]
AR4[16]
AR5[16]
AR6[16]
AR7[16]
AR0H[16]
AR1H[16]
AR2H[16]
AR3H[16]
AR4H[16]
AR5H[16]
AR6H[16]
AR7H[16]
XAR0[32]
XAR1[32]
XAR2[32]
XAR3[32]
XAR4[32]
XAR5[32]
XAR6[32]
XAR7[32]
PC[22]
RPC[22]
ST0[16]
IER[16]
ST1[16]
DBGIER[16]
IFR[16]
T[16]
PH[16]
TL[16]
PL[16]
AL[16]AH[16]
XT[32]
P[32]
ACC[32]
†
A 6-bit offset is used when operating in C28x mode or C27x object-compatible mode.
A 7-bit offset is used when operating in C2xLP source-compatible mode. The least significant
bit of the DP is ignored when operating in this mode.
2.2.1 Accumulator (ACC, AH, AL)
The accumulator (ACC) is the main working register for the device. It is the
destination for all ALU operations except those which operate directly on
memory or registers. ACC supports single-cycle move, add, subtract, and

Texas Instruments TMS320C28x Specifications

General

Brand	Texas Instruments
Model	TMS320C28x
Category	Processor
Language	English