DSC 3486/2 is a high-performance embedded 64-bit microprocessor produced by IDT. The microprocessor has 64-bit integer operations, 64-bit registers, is based on the MIPS RISC architecture, supports 100MHz, 133MHz, 150MHz, 180MHz, 200MHz and 267MHz operating frequencies, and its 32-bit bus interface brings 64-bit performance to 32-bit system cost.
The IDT79RC4640 is a low‑cost 64‑bit RISController from Integrated Device Technology, targeting embedded applications such as routers, printers, and multimedia game systems. It offers high‑performance integer and DSP operations, a configurable cache system, and a full MIPS‑III instruction set.
The handbook describes the processor architecture, pipeline, cache hierarchy, floating‑point coprocessor, system control coprocessor, and memory management features, providing developers with the information needed to integrate and program the device.
| Operating frequencies | 100 MHz, 133 MHz, 150 MHz, 180 MHz, 200 MHz, 267 MHz |
|---|---|
| Integer multiply‑add performance | 133.5 M Mul‑Add/sec @267 MHz |
| Floating‑point performance | 89 MFlops @267 MHz |
| Bus bandwidth | 500 MB/sec |
| Dhrystone MIPS | 352 MIPS |
It supports 100 MHz, 133 MHz, 150 MHz, 180 MHz, 200 MHz, and 267 MHz.
The processor can perform 133.5 million multiply‑add operations per second at 267 MHz.