Texas Instruments TMS320C3x - Manual (Page 64)

3-1
CPU Registers
The central processing unit (CPU) register file contains 28 registers that can
be operated on by the multiplier and arithmetic logic unit (ALU). Included in the
register file are the auxiliary registers, extended-precision registers, and index
registers.
Three registers in the ’C32 CPU register file have been modified to support new
features (2-channel DMAs, program execution from 16-bit memory width, etc.)
The registers modified in the ’C32 are: the status (ST) register, interrupt-enable
(IE) register, and interrupt flag (IF) register.
Topic Page
3.1 CPU Multiport Register File 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Other Registers 3-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Reserved Bits and Compatibility 3-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3