Re: Triton DMA

H. Peter Anvin (hpa@transmeta.com)
29 Nov 1997 21:12:41 GMT

Followup to: <34805F22.3436C59@pobox.com>
By author: mlord <mlord@pobox.com>
In newsgroup: linux.dev.kernel
>
> It is implemented in hardware.
>
> And, it is only a crc16 rather than crc32 (had it wrong in earlier
> post).
> We just need to add detect/retry logic for CRC errors,
> which are signalled to us by a new bit in the IDE ERROR register.
>
> Just cuz it's IDE doesn't mean the designers were clueless.
>

Yes, the new IDE modes seem to be aiming to make IDE more and more
like SCSI. However, it is still, AFAIK, an at least partially
unterminated bus limited to about 50 cm in length.

I guess I don't really understand the quest to turn IDE into SCSI,
especially since SCSI is *still* very much more versatile than IDE; I
have yet to see an IDE scanner...

-hpa

-- 
    PGP: 2047/2A960705 BA 03 D3 2C 14 A8 A8 BD  1E DF FE 69 EE 35 BD 74
    See http://www.zytor.com/~hpa/ for web page and full PGP public key
        I am Bahá'í -- ask me about it or see http://www.bahai.org/
   "To love another person is to see the face of God." -- Les Misérables