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On Mon, 07 Oct 2002 09:25:08 +0200, Stephane Cattaneo wrote: >This message is from the T13 list server. >Regarding when you have two devices, with two different speeds, can I >use the fastest speed of the two to communicate with both of them ? and >I mean communicate with each max speed for each device. (and not use the >slowest speed to communicate with both of them) It lookslike it works, >but I want a confirmation by the specialist.... The answer to your question is found in Note 5 in the "Register transfer to/from device" table. In one word the answer is "NO". My question would be: Why do you think you can violate the PIO timing of the slower device on the interface and still expect that device to respond correctly to writes to the registers? Think about what happens if the slower device, while not selected, fails to see a Soft Reset or a change in the DEV bit value. *** Hale Landis *** www.ata-atapi.com ***
