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= XTeic | ||
Jan Oleksiewicz <[email protected]> | ||
:appversion: 0.34.8 | ||
:appversion: 0.34.9 | ||
:toc: | ||
:toclevels: 5 | ||
:sectnums: | ||
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@@ -263,6 +263,18 @@ that their task driven machine "reduces interrupt latency and jitter" compared t | |
even though it does exactly the opposite when there is more than one | ||
(async) interrupt to handle (which happens in <<spracs0a>> example) | ||
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==== Xh3irq | ||
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Xh3irq extension (as implemented by hazard3) <<hazard3>> provides nested and vectored | ||
interrupt handling that is conceptually similar to CLIC (`mnxti`) trampoline. | ||
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Unlike CLIC, dispatcher has to index pointer array in software (by using index from `meinext`) | ||
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Example handler implements only jumptable but it can be easily convertod into pointer table. | ||
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Access to configuration bits of all 512 inputs is performed by inline windowing of configuration | ||
CSRs, which is incompatible with zicsrind. | ||
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=== overwiew/discussion of some concepts/features | ||
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==== whole app must be doable in C/C++ | ||
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@@ -2277,3 +2289,4 @@ high frequency interrupts which can be handled by `teic.wfi.n4ign` instead. | |
* [[[spruge6b, 51]]] https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/5504.2803x-CLA-_2800_1_2900_.pdf | ||
* [[[spracw5a, 52]]] https://www.ti.com/lit/an/spracw5a/spracw5a.pdf | ||
* [[[CV32RT, 53]]] https://arxiv.org/pdf/2311.08320 | ||
* [[[hazard3, 54]]] https://github.com/Wren6991/Hazard3/blob/stable/doc/hazard3.pdf |