TMS320C6474
SPRS552F – OCTOBER 2008 – REVISED JULY 2010
www.ti.com
•
Instruction Set Enhancements - As noted above, there are new instructions such as 32-bit
multiplications, complex multiplications, packing, sorting, bit manipulation, and 32-bit Galois field
multiplication.
•
Exception Handling - Intended to aid the programmer in isolating bugs. The C64x+ CPU is able to
detect and respond to exceptions, both from internally detected sources (such as illegal op-codes) and
from system events (such as watchdog time expiration).
•
Privilege - Defines user and supervisor modes of operation, allowing the operating system to give a
basic level of protection to sensitive resources. Local memory is divided into multiple pages, each with
read, write, and execute permissions.
•
Time-Stamp Counter - Primarily targeted for real-time operating system (RTOS) robustness, a
free-running time-stamp counter is implemented in the CPU that is not sensitive to system stalls.
For more details on the C64x+ CPU and its enhancements over the C64x architecture, see the following
documents:
•
TMS320C64x/C64x+ DSP CPU and Instruction Set Reference Guide (literature number
SPRU732
)
•
TMS DSP Cache User's Guide (literature number
SPRU862
)
•
TMS Megamodule Reference Guide (literature number
SPRU871
)
•
TMS320C64X to TMS CPU Migration Guide (literature number
SPRAA84
)
10
Device Overview
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