[FRAM71] Pre-Production Batch
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03-04-2015, 05:15 PM
(This post was last modified: 03-04-2015 05:15 PM by Hans Brueggemann.)
Post: #49
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RE: [FRAM71] Pre-Production Batch
(02-27-2015 04:32 PM)Dave Frederickson Wrote: Can you elaborate on Feature 3) from the Feb 12 email which states: you may assign the same FRAM space (base) to multiple chips this is actually not a feature but a side-effect, and probably not useful at all. it is just saying that it is ok to assign different chips to the same F-Block, i.e., the same F-Block will be mirrored in multiple address spaces. if, for example chip_0 is assigned as ROM to F-Block_0, and chip_1 is assigned as RAM to F-Block_0, then you can circumvent the write protection of the ROM by writing to chip_1 instead. However, the SYSRAM area has a different write-protection to prevent that. hans |
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