Date: Sat, 14 Dec 1996 23:20:08 -0800 From: Amancio Hasty <hasty@rah.star-gate.com> To: hackers@freebsd.org Subject: PCI 2.1 Byte Enables? Message-ID: <199612150720.XAA00409@rah.star-gate.com>
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Hi, I am writing a device driver for a PCI video capture board, Brooktree Bt848,as part of a dma risc instruction it requires : byte count and 4 bits for PCI byte enables. Can anyone guess what the PCI byte enables are for? Supposedley, the Bt848 is PCI 2.1 compliant. I have the databook for the Bt848 however it does not explain what the PCI byte enables field is for. I will probably contact again Brooktree next week if no one here knows what the field is for. Tnks, Amancio
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