At 02:35 PM 4/25/2005, Stephen Warren wrote: >Freescale have been working with us on a board work-around for the >problem. This basically involves deriving a substitute ATA_ISOLATION >signal from the regular ATA control signals, in some cases.
Are you able to share the circuit they've recommended? Is it as simple as: ISOLATION = ((ATA_CS1 or ATA_IOR) and (ATA_CS0 or ATA_IOR)) This seems like it would be in violation of the setup and hold time requirements for the data bus. I've been told there's a new silicon revision of the MPC5200 due sometime later in the year, but the date keeps getting pushed back. Eric ------------------------------------ Eric Johnson, Electrical Engineer Advanced Communication Design 7901 12th Avenue South Bloomington, MN 55425 Ph: 952-854-4000 Fax: 952-854-5774
