Why do DSPs with large on-chip RAM have high efficiency?

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Why do DSPs with large on-chip RAM have high efficiency? [Copy link]

At present, the on-chip RAM of DSP is getting bigger and bigger. To design an efficient DSP system, you should choose a DSP with a larger on-chip RAM. Compared with the external memory, the on-chip RAM has the following advantages: 1) The on-chip RAM is faster, which can ensure that the DSP runs without waiting. 2) For the C2000/C3x/C5000 series, some on-chip memories can be accessed twice in one instruction cycle, making the instructions more efficient. 3) The on-chip RAM runs stably and is not affected by external interference, nor will it interfere with the outside. 4) The DSP has multiple buses on the chip. When accessing the on-chip RAM, it will not affect the access of other buses, and the efficiency is higher. The on-chip RAM of DSP is getting bigger and bigger. To design an efficient DSP system, you should choose a DSP with a larger on-chip RAM. Compared with the external memory, the on-chip RAM has the following advantages: 1) The on-chip RAM is faster, which can ensure that the DSP runs without waiting. 2) For the C2000/C3x/C5000 series, some on-chip memories can be accessed twice in one instruction cycle, making the instructions more efficient. 3) The on-chip RAM runs stably and is not affected by external interference, nor will it interfere with the outside. 4) The DSP has multiple buses on the chip, and when accessing the on-chip RAM, it will not affect the access of other buses, which is more efficient.