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As I read it either the command timeout limit supplied with the command or supplied with a CONFIGURE STREAM is always in effect, that is, the command will abort if the limit is reached. RC and WC just alter the way in which the error is reported. URG just says do your best to do it as fast as possible. Pete -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 16, 2003 8:49 AM To: [EMAIL PROTECTED] Subject: RE: [t13] ATA7 streaming: RC/WC bit question This message is from the T13 list server. I meant to say READ/WRITE STREAM DMA/PIO The same question still applies. Thanx !!! ----------------------------------------------------------------- Jim Hatfield ATA Interface Firmware & T13 (ATA/ATAPI) Standards Representative Seagate Technology - PSG e-mail: [EMAIL PROTECTED] s-mail: 389 Disc Drive; Longmont, CO 80501 USA voice: 720-684-2120 fax : 720-684-2711 ==================================================== "Mclean, Pete" <Pete_Mclean@m To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]> axtor.com> cc: No Phone Info Subject: RE: [t13] ATA7 streaming: RC/WC bit question Available 01/16/2003 08:15 AM URG, WC, and RC are defined only for READ/WRITE STREAM commands. Regards, Pete -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 15, 2003 3:02 PM To: [EMAIL PROTECTED] Subject: [t13] ATA7 streaming: RC/WC bit question This message is from the T13 list server. Someone please tell me where to go. We seem to have lost part of the specification for READ DMA [EXT] and WRITE DMA [EXT] for when URG=0 and (RC=0 (on read) and WC=0 (on write)) The most recent published version (d1532v1r1a.pdf) says nothing about these cases. I know that the meaning of these was discussed, but I cannot find a trace. -------------------------- What I am <assuming> is this: For read: if URG=0 and RC=0, the CCTO does not apply, and a timeout will not terminate the command For write: (likewise) ----------------------------- Am I way off-base, or does this seem like something we need to explicitly state ? - or - does a different meaning apply ? Thanx !!! ----------------------------------------------------------------- Jim Hatfield ATA Interface Firmware & T13 (ATA/ATAPI) Standards Representative Seagate Technology - PSG e-mail: [EMAIL PROTECTED] s-mail: 389 Disc Drive; Longmont, CO 80501 USA voice: 720-684-2120 fax : 720-684-2711 ====================================================
