Dsp Core Diagram - Texas Instruments OMAP5910 Reference Manual

Figure 3.

DSP Core Diagram

External data
buses
Memory
interface unit
External
program buses
SPRU890A
Data-read data buses BB, CB, DB (each 16 bits)
Data-read address buses BAB, CAB, DAB (each 23 bits)
Program-read data bus PB (32 bits)
Program-read address bus PAB (24 bits)
CPU
Instruction
buffer unit
(I unit)
Data-write data buses EB, FB (each 16 bits)
Data-write address buses EAB, FAB (each 23 bits)
Other useful documents include:
TMS320C55x DSP Mnemonic Instruction Set Reference Guide
-
(SPRU374): Describes the mnemonic instructions individually. It also
includes a summary of the instruction set, a list of the instruction opcodes,
and a cross-reference to the algebraic instruction set.
TMS320C55x Programmer's Guide (SPRU376): Describes ways to
-
optimize C and assembly code for the TMS320C55x DSPs and explains
how to write code that uses the special features and instructions of the
DSP.
TMS320C55x Optimizing C Compiler User's Guide (SPRU281):
-
Describes the TMS320C55x C Compiler. This C compiler accepts ANSI
standard C source code and produces assembly language source code
for TMS320C55x devices.
C55x DSP Core Overview
Program Address-data
flow unit flow unit
(P unit) (A unit)
DSP Subsystem
Data
computation
unit
(D unit)
23