Fujitsu MHM2150AT Manual/User Guide - Page 168
Normal DMA data transfer, shows the correct DMA data transfer protocol.
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5.5 Ultra DMA Feature Set f) When the command execution is completed, the device clears both BSY and DRQ bits and asserts the INTRQ signal. Then, the host reads the Status register. g) The host resets the DMA channel. Figure 5.7 shows the correct DMA data transfer protocol. f g d d f e d f e Figure 5.7 Normal DMA data transfer C141-E104-03EN 5-91
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5.5
Ultra DMA Feature Set
C141-E104-03EN
5-91
f)
When the command execution is completed, the device clears both BSY and
DRQ bits and asserts the INTRQ signal.
Then, the host reads the Status
register.
g)
The host resets the DMA channel.
Figure 5.7 shows the correct DMA data transfer protocol.
Figure 5.7
Normal DMA data transfer
f
d
e
e
d
g
d
f
f