- DSTREAM enables JTAG, SWD, and trace connection to ARM processor-based devices
- VSTREAM is a virtual interface to connect software debuggers to hardware assisted verification systems
- Realview ICE (RVI) legacy units provide debug-only target connection
Compare Debug Connections
| Product | DSTREAM | VSTREAM | RVI (legacy) |
|---|---|---|---|
| Functionality | Debug, Trace | Debug | Debug |
| Target type | Hardware | RTL model | Hardware |
| Target connectivity | JTAG, SWD | EDA | JTAG, SWD |
| Host connectivity | USB, Ethernet | Ethernet | USB, Ethernet |
| Tools support | DS-5 RVDS (debug) | DS-5 RVDS | DS-5 RVDS |
| JTAG frequency | 60 MHz | - | 50 MHz |
| Memory download | 2,500 KB/s | 400 KB/s | 1,500 KB/s |
| Trace interface | SWO, 16-bit | - | SWO |
| Trace buffer | 4 GB | - | - |
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