[Arm-netbook] Grain-media chips / openipcam - anyone has experience with them?

krasi gichev krasimirr at gmail.com
Tue Feb 26 09:14:36 GMT 2013


2013/2/25 joem <joem at martindale-electric.co.uk>

>
>
Not sure about it, documentation about the core (FA626TE from Faraday-tech)
says that there is an MMU and it is compatible to the ARM MMU.

"The Memory Management Unit (MMU) provides the address translation and
permission check mechanism for memory access. The FA626TE MMU implements
the two-level TLB structure. Level-1 TLB includes an ITLB for the
instruction access look-up and a DTLB for the data access look-up. Both
look-ups are 8-entry fully-associate. Level-2 TLB (UTLB) is a unified 2-way
set-associate TLB structure. TLBs cache the most recently used page
descriptors for the address translation, which greatly improves the overall
performance. Once UTLB misses, the page table walk will be completed
automatically by the hardware.
The FA626TE MMU is compatible with the MMU defined in the ARM Architecture
Reference Manual, second edition, with some minor differences due to the
inherent differences in cache and TLB implementation"
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