Clarification of SPI

Jeff Williams jlw at hpbs1506.boi.hp.com
Fri Apr 8 07:58:27 PDT 1994


There is a statement in rev 12b of SPI on page 22 that has aroused the
interest of a few designers.  I was wondering if any of you could 
enlighten me as to it's meaning.

"The REQ/REQQ and the ACK/ACKQ receivers, after recognizing a negation
transition, shall not respond to a signal reversal for at least 10 ns."

What does this mean?

Regards,
Jeff
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Jeffrey L. Williams                                HP TelNet: 396-5030
Disc Controllers Lab             	 Telephone: (1) (208) 396-5030
Disc Mechanism Division                  Facsimile: (1) (208) 396-6858
Hewlett-Packard Co.                    ARPANET: jlw at hpdmd48.boi.hp.com
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