Texas Instruments TMS320C67 DSP Series Programmer's Reference Manual page 112

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E
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control register file: A set of control registers.
CSL: See chip support library.
device ID: Configuration register that identifies each peripheral component
interconnect (PCI).
digital signal processor (DSP): A semiconductor that turns analog sig-
nals—such as sound or light—into digital signals, which are discrete or
discontinuous electrical impulses, so that they can be manipulated.
direct memory access (DMA): A mechanism whereby a device other than
the host processor contends for and receives mastery of the memory bus
so that data transfers can take place independent of the host.
DMA: See direct memory access.
DMA source: The module where the DMA data originates. DMA data is read
from the DMA source.
DMA transfer: The process of transferring data from one part of memory to
another. Each DMA transfer consists of a read bus cycle (source to DMA
holding register) and a write bus cycle (DMA holding register to destina-
tion).
evaluation module (EVM): Board and software tools that allow the user to
evaluate a specific device.
external interrupt: A hardware interrupt triggered by a specific value on a
pin.
external memory interface (EMIF): Microprocessor hardware that is used
to read to and write from off-chip memory.
fast Fourier transform (FFT): An efficient method of computing the discrete
Fourier transform algorithm, which transforms functions between the
time domain and the frequency domain.
fetch packet: A contiguous 8-word series of instructions fetched by the CPU
and aligned on an 8-word boundary.
FFT: See fast fourier transform.
Glossary
Glossary C-3