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Does the cache change to writethrough mode during the battery refresh?

April 26, 2017battery cache mode Refresh

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Does the cache change to writethrough mode during the battery refresh?

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A. Yes, but only during the discharge period. For approximately 12 minutes (per PCU), the cache will switch to writethrough. After the finishes and the battery starts to recharge, the cache will go back to writebehind mode for the remainder of the refresh cycle. So for an entire refresh, the T3 can be in writethrough cache mode for approximately 20-25 minutes (~12 min. per PCU) of the 20 or so hours the refresh takes.