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By the way, the legacy I remember here says i x1F0 Data = xD0D0 when BSY:DRQ != x08 ... the intent of the design is to imitate Pio data read when BSY=1. Commonly that is two copies of the x3F6 AlternateStatus, which at that time is commonly xD0. x4402 Pat LaVarre [EMAIL PROTECTED] http://members.aol.com/plscsi/ >>> Hale Landis 03/26/02 11:25AM >>> This message is from the T13 list server. On Fri, 8 Mar 2002 12:30:35 -0800, Eschmann, Michael K wrote: >This message is from the T13 list server. >Hale, >What would be the scope of the drive responding with a data value of 0x33cc >or 0xcc33? Does this happen only if the data read immediately follows the >writing of the device/head register, or is this going to happen all the >time? I think I said the device shall respond to a read of the Data register with this value anything the Data register is read and the device status is BSY=0 DRQ=0.
