22 lines
1.5 KiB
Plaintext
22 lines
1.5 KiB
Plaintext
Field Name Bits Default Description
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ZC_FLUSH 0 0x0 Setting this bit flushes the dirty data from the Z cache.
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Unless ZC_FREE bit is also set, the tags in the cache
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remain valid. A purge is achieved by setting both
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ZC_FLUSH and ZC_FREE. This is a sticky bit and it
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clears itself at the end of the operation.
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POSSIBLE VALUES:
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00 - No effect
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01 - Flush and Free Z cache lines
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ZC_FREE 1 0x0 Setting this bit invalidates the Z cache tags. Unless
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ZC_FLUSH bit is also set, the cachelines are not written
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to memory. A purge is achieved by setting both
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ZC_FLUSH and ZC_FREE. This is a sticky bit that
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clears itself at the end of the operation.
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POSSIBLE VALUES:
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00 - No effect
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01 - Free Z cache lines (invalidate)
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ZC_BUSY 31 0x0 This bit is unused ...
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POSSIBLE VALUES:
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00 - Idle
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01 - Busy
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