[libre-riscv-dev] barrel processor as I/O and DMA controller

Jacob Lifshay programmerjake at gmail.com
Wed Apr 10 18:31:21 BST 2019


also, the current design has 5 harts, so 1GHz would mean 200Mips per core,
assuming no stalling.

On Wed, Apr 10, 2019, 10:29 Jacob Lifshay <programmerjake at gmail.com> wrote:

> Note that I don't think it would be particularly low power at 1GHz, so we
> will want to run it at a lower clock rate most of the time.
>
> On Wed, Apr 10, 2019, 10:27 Luke Kenneth Casson Leighton <lkcl at lkcl.net>
> wrote:
>
>> On Wed, Apr 10, 2019 at 5:51 PM Jacob Lifshay <programmerjake at gmail.com>
>> wrote:
>> >
>> > I'd expect it to be able to get to 1GHz or so.
>>
>>  fantastic.  so, assuming say 4 time-slices, that's 250mhz per
>> time-slice, that would leave 5 instructions per clock cycle with which
>> to do data transfers @ say 50mhz.
>>
>>  if that is achievable it would mean that we could do e.g. eMMC in
>> software.
>>
>> l.
>>
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>


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