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Preliminary
Model Number :
UJ160ABPSN-B
12. Serial ATA Features (continue)
12-3.HIPM( Host Initiated link Power Management )
HIPM is a method which controls Serial ATA interface power states by host controller.
Logical Unit supports this feature. Host shall issue IDENTIFY PACKET DEVICE before
initiate power management transition requests, and check the response data whether
HIPM is supported or not.
12-4. HIPM State Changes
required
Partial
5
PARTIAL
1: A power-on or hard reset always returns the Interface Power State to the PHYRDY state from any state.
2: In the case of required Partial, the drive receive PMREQ_P from host.
3: In the case of required Slumber, the drive receive PMREQ_S from host.
4: If the drive issues PMNAK, the status changes into PHYRDY.
5: If the drive issues PMACK, the status changes into PARTIAL.
6: If the drive issues PMACK, the status changes into SLUMBER.
7: If the drive or host issues COMWAKE(or COMRESET/COMINIT), the status changes into PHYRDY.
KOK-B3-001-T6 Issue 5
Power ON
2
PHYRDY
4
7
Panasonic System Networks Co.,Ltd
1
3
4
7
Optical Devices Business Unit
PAGE
14
/
required
Slumber
6
SLUMBER
24
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