| commit | c280d409abd9d81c6ec706556b34a4c3b5806009 | [log] [tgz] |
|---|---|---|
| author | Pirmin Vogel <vogelpi@lowrisc.org> | Fri May 13 14:49:04 2022 +0200 |
| committer | Pirmin Vogel <vogelpi@lowrisc.org> | Fri May 13 21:47:53 2022 +0200 |
| tree | 96a6524b69561a11a7c20f1dcf038ca61a3381e1 | |
| parent | 26c7aa4faa7dfbf19063d58203bd17ce109ddb68 [diff] |
[sca] Disable peripheral clocks during SCA capture To further reduce unwanted noise during SCA captures, it's better to disable the peripheral clocks in addition to the clocks of the bigger modules like (HMAC, OTBN, KMAC, AES). Special care is required for the IO_DIV4_PERI clock as the UART and GPIO modules required for communication with the scope are using this clock. Therefore, this clock can only be disabled during the actual capture and has to be re-enabled afterwards to resume communication. Signed-off-by: Pirmin Vogel <vogelpi@lowrisc.org>
OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.
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