This message is from the T13 list server.
On Thu, 26 Sep 2002 09:19:16 -0600, James Hatfield wrote: >This message is from the T13 list server. >OK. Let me summarize what appears to have been said. >Tell me if this does not correctly reflect the current discussion. > >bit 10 words capacity >word 83 100-103 < 137GB Valid? Reason why invalid >------- ------- -------- ------ ------------------ > 0 0 no no 48-bit must be set > if cap>137GB > 0 0 yes yes > 0 non-zero no no 48-bit must be set > if cap>137GB > 0 non-zero yes ??? (in question) HL: This is (or should be) invalid. If word 83 bit 10 is 0 then words 100-103 should be zero. If word 83 bit 10 is 1 then words 100-103 should be non-zero but may contain a capacity value less than or equal to 137GB. > 1 0 no no SHALL report real capacity > if 48-bit supported > 1 0 yes no SHALL report real capacity > if 48-bit supported > 1 non-zero no yes > 1 non-zero yes ??? (in question) HL: There should be no question here. A device of any capacity should be able to support 48-bit LBA, even a 32MB CFA device should be allowed to support 48-bit LBA. > [...] >The only question (for me) is whether to CHANGE the wording for words >100-103 >from: "is mandatory if the 48-bit Address feature set is supported." >to: "is mandatory if the 48-bit Address feature set is enabled." Supported I understand. What do you mean by "enabled"? Isn't this one of those features that is always enabled if it is supported just like 28-bit LBA is always enabled if supported? *** Hale Landis *** www.ata-atapi.com ***
