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| EW31244SL7QV Datasheet, PDF (52/252 Pages) Intel Corporation – Intel® 31244 PCI-X to Serial ATA Controller | |||
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Intel® 31244 PCI-X to Serial ATA Controller
Functional Blocks
Figure 18.
COMINIT always originates from the device. COMINIT is used by the device to initiate the
initialization sequence of the serial bus, similar to what a COMRESET does. This is electrically
identical to COMRESET except it originates from the device. After the initialization sequence is
completed, the communication link between the controller and the device is established and normal
operation may begin. Figure 18 shows a COMINIT sequence.
COMINIT Sequence
COMWAKE may originate from either the controller or the device. COMWAKE is used to bring
the PHY out of a power-down state.
52
April 2004
Developerâs Manual
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