| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital signal processor utilizing a variable length instruction set in a digital signal circuit to process telephone calls.SOLUTION: A DSP includes a set of three data buses 108, 110, 112 over which data may be exchanged with a register bank 120 and three data memories 102, 103, 104. The register bank 120 has registers accessible by at least two processing units 128, 130. An instruction fetch unit 156 receives instructions of variable length stored in an instruction memory 152. The instruction memory 152 is separate from the set of three data memories 102, 103, 104. |
