Re: why Target cannot change its mind

["Richard Iachetta" <iachetta@us.ibm.com>]

>I have to say that I have never backed out from my original view:
>"when Either Master or Target is inserting wait cycles, NOT FOR LAST DATA
>(FRAME# = '0'), the opposite partner can change its state (IRDY# or TRDY#)
>without any harm if no accompanying STOP# change !!! That's all."

Weng,

Can you explain why a target would ever want to assert its TRDY# and then
later change its mind before the data was transferred?  What benefit could
be gained by having the bus support that?

Rich Iachetta
IBM Microelectronics Division -- Austin
World Wide Field Design Center
Phone: 512-838-6305   Tie Line: 678-6305