The TMS320DM642 is a high‑performance video/imaging fixed‑point digital signal processor featuring a VLIW architecture, up to eight independent functional units, and extensive peripheral support such as Ethernet, video ports, and audio interfaces. It offers clock rates of 500 MHz, 600 MHz, or 720 MHz and delivers up to 5760 MIPS.
The device includes a 128‑Kbit (16 KB) L1 program cache, a 128‑Kbit (16 KB) L1 data cache, and a 2‑Mbit (256 KB) unified L2 cache. External memory is accessed via a 64‑bit EMIF with a total addressable space of 1024 MB. Peripherals include a 10/100 Mb/s Ethernet MAC, 64‑channel EDMA, three configurable video ports, and a multichannel audio serial port.
| Clock Rate | 500 MHz, 600 MHz, 720 MHz |
|---|---|
| Instruction Cycle Time | 2 ns, 1.67 ns, 1.39 ns |
| MIPS Performance | 4000, 4800, 5760 MIPS |
| L1 Program Cache | 128 Kbit (16 KB) direct‑mapped |
| L1 Data Cache | 128 Kbit (16 KB) 2‑way set‑associative |
| L2 Unified Cache | 2 Mbit (256 KB) unified |
| External Memory Interface | 64‑bit EMIF, 1024 MB address space |
| EDMA Channels | 64 independent channels |
The DSP can operate at 500 MHz, 600 MHz, or 720 MHz.
It can address up to 1024 M‑byte of external memory.