Sundance Technology
ST201
PRELIMINARY draft 2
WAKEEVENT |
|
Class | I/O Registers, Control and Status |
Base Address | IoBaseAddress register value |
Address Offset | 0x45 |
Access Mode | Read/Write |
Width | 8 bits |
WakeEvent contains enable bits to control which types of events can generate a wake event to the host system. It also contains status bits indicating the specific events that have occurred.
BIT
0
1
2
3
4
5
6
7
BIT NAME
WakePktEnable
MagicPktEnable
LinkEventEnable
WakePolarity
WakePktEvent
MagicPktEvent
LinkEvent
WakeOnLanEnable
BIT DESCRIPTION
Setting this read/write bit enables the ST201 to generate wake events via a PCI interrupt due to Wake Packet reception. PmeEn must be set in the PowerMgmtCtrl register in order for WakePktEnable to be recog- nized. WakePktEnable has no effect in power mode D0.
Setting this read/write bit enables the ST201 to generate wake events via a PCI interrupt due to Magic Packet reception. MagicPktEnable is set after a ST201 reset. PmeEn must be set in the PowerMgmtCtrl reg- ister in order for MagicPktEnable to be recognized. MagicPktEnable has no effect in power mode D0.
Setting this read/write bit enables the ST201 to generate wake events via a PCI interrupt due to a change in link status (cable connect or dis- connect). PmeEn must be set in the PowerMgmtCtrl register in order for LinkEventEnable to be recognized. LinkEventEnable has no effect in power mode D0.
Setting this read/write bit will cause the Wake pin to be asserted in the HIGH state (default after RESET). MagicPktEnable is set after a ST201 reset.
Indicates that a wake packet (which meets the reception criteria set by driver) has been received. WakePktEvent is masked by WakePktEna- ble, and must be set for WakePktEvent to operate. WakePktEvent is cleared when the WakeEvent register is read.
Indicates that a magic packet has been received. MagicPktEvent is masked by MagicPktEnable, and must be set for MagicPktEvent to operate. MagicPktEvent is cleared when the WakeEvent register is read.
Indicates that a link status event has occurred. LinkEvent is masked by LinkEventEnable, and must be set for LinkEvent to operate. LinkEvent is cleared when the WakeEvent register is read.
Setting this read/write bit puts the ST201 in the WakeOnLan mode regardless of the power management register settings in the configura- tion space.
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