5.6.3.7Initiating an Ultra DMA data out burst
5.6.3.2 contains the values for the timings for each of the Ultra DMA Modes.
DMARQ |
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|
|
(device) | tUI |
|
|
DMACK- |
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|
|
(host) |
|
|
|
| tENV |
|
|
| tACK |
|
|
STOP |
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|
|
(host) | tLI |
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|
| tUI |
| |
| tZIORDY |
|
|
DDMARDY- |
|
|
|
(device) |
|
|
|
| tACK |
|
|
HSTROBE |
| tDZFS |
|
(host) |
|
| |
|
|
| |
|
| tDVS | tDVH |
DD(15:0) |
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|
|
(host) |
|
|
|
| tACK |
|
|
DA0, DA1, DA2 |
|
|
|
|
|
| |
Note: |
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|
The definitions for the STOP, DDMARDY- and HSTROBE signal lines are not in effect until DMARQ and DMACK- are asserted.
Figure 5.15 Initiating an Ultra DMA data out burst
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