| ??? 07/31/10 02:30 Read: times |
#177539 - early DSP's had no converters Responding to: ???'s previous message |
The thing that distinguished early DSP's was the Multiplier-ACcumulator. In combination with their pipeline, they could process digital data very quickly and concisely with very few instructions for some tasks, e.g. FIR filter. IIRC, the FIR filter didn't require much aside from a MAC, and if it got its data from a codec or parallel port, and sent its data to a codec or parallel port, the task was done.
If you can find it, you can look at the TMS32010, which was the earliest DSP I ever encountered, though I once had someone tell me that the 8x300 was a DSP as well. A microprocessor was an execution engine/ALU with only the ability to use external memory, both ROM and RAM, and external I/O, while a microcontroller was a single-chip computer, (mostly, since the Fairchild F8 was a multi-chip microcontroller) having ROM, RAM, and I/O on board. It has become rather a grey area, however. |
| Topic | Author | Date |
| µ-controllers, µ-processors and DSPs | 01/01/70 00:00 | |
| No-on last question. | 01/01/70 00:00 | |
| early DSP's had no converters | 01/01/70 00:00 | |
| Signal Processing | 01/01/70 00:00 | |
Digitial signal processing is mainly math. | 01/01/70 00:00 | |
| it's all marketing | 01/01/70 00:00 | |
| There really isn't a true distinction anymore. | 01/01/70 00:00 | |
| 8051 + MAC | 01/01/70 00:00 | |
| I know. | 01/01/70 00:00 | |
| There is some confusion.... | 01/01/70 00:00 | |
| DSP designed for concurrency of simple operations | 01/01/70 00:00 | |
| Still some confusion... | 01/01/70 00:00 | |
| processor/processing, and absolute time contra clock cycles | 01/01/70 00:00 | |
| You're being too practical | 01/01/70 00:00 | |
| No magic ISR advantage for uC in relation to uP | 01/01/70 00:00 |