Glossary
compress and expand (compand): A quantization scheme for audio signals in which the input signal is compressed and then, after processing, is reconstructed at the output by expansion. There are two distinct companding schemes:
control register: A register that contains bit fields that define the way a device operates.
control register file: A set of control registers.
CSL: See chip support library.
D
device ID: Configuration register that identifies each peripheral component interconnect (PCI).
digital signal processor (DSP): A semiconductor that turns analog
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 destination).
DSP_autocor: Autocorrelation.
DSP_bexp: Block exponent implementation.
DSP_bitrev_cplx: Complex bit reverse.
DSP_blk_eswap16:
DSP_blk_eswap32:
DSP_blk_eswap64:
Glossary
