This message is from the T13 list server.
Please help me to resolve questions about ultra DMA, 1. During initiating an ulta DMA data-in burst, why need the action, "The device may assert DSTROBE tZIORDY after the host has asserted DMACK-"? does it mean that first strobe should be from high to low? Why? 2. I cannot understand why "if STROBE is not in the asserted state, the sender shall return STROBE to the asserted state" ? STROBE is active on edge not on level, why we have to care its state on high or low? Thanks in advance. Subscribe/Unsubscribe instructions can be found at www.t13.org.
