Texas Instruments TMS320C2XX - Manual (Page 46)

3-1
Central Processing Unit
This chapter describes the main components of the central processing unit
(CPU). First, this chapter describes three fundamental sections of the CPU
(see Figure 3–1):
- Input scaling section
- Multiplication section
- Central arithmetic logic section
The chapter then describes the auxiliary register arithmetic unit (ARAU), which
performs arithmetic operations independently of the central arithmetic logic
section. The chapter concludes with a description of status registers ST0 and
ST1, which contain bits for determining processor modes, addressing pointer
values, and indicating various processor conditions and arithmetic logic re-
sults.
Topic Page
3.1 Input Scaling Section 3-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Multiplication Section 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Central Arithmetic Logic Section 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Auxiliary Register Arithmetic Unit (ARAU) 3-12 . . . . . . . . . . . . . . . . . . . . .
3.5 Status Registers ST0 and ST1 3-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3