1-1
Architectural Overview
The TMS320C28xt is one of several fixed-point generations of digital signal
processors (DSPs) in the TMS320 family. The C28xt is source-code and ob-
ject-code compatible with the C27xt. In addition, much of the code written for
the C2xLP CPU can be reassembled to run on a C28x device.
The C2xLP CPU is used in all TMS320F24xx and TMS320C20x DSPs and
their derivatives. This document refers to C2xLP as a generic name for the
DSP CPU used in these devices.
This chapter provides an overview of the architectural structure and compo-
nents of the C28x CPU.
Topic Page
1.1 Introduction to the CPU 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Components of the CPU 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Memory Map 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Memory Interface 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1
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