Intel PCI Wakeup Packet Length, Wakeup Packet Memory 128 Bytes, Flexible Filter Length Table

Register Descriptions

13.6.7Wakeup Packet Length

WUPL (05900h; R/W)

This register indicates the length of the first wakeup packet received. It is valid if one of the bits in the Wakeup Status Register (WUSR) is set. It can be written for diagnostic purposes and is not cleared by any reset.

31 12 11 0

Reserved

Length

Field	Bit(s)	Initial Value	Description
LEN	11:0	X	Length of wakeup packet. (If jumbo frames is enabled and the
			packet is longer than 2047 bytes this field is 2047.)

13.6.8Wakeup Packet Memory (128 Bytes)

WUPM (05A00h - 05A7Ch; R/W)

This register is read-only and it is used to store the first 128 bytes of the wakeup packet for software retrieval after system wakeup. It can be written for diagnostic purposes and is not cleared by any reset.

	31			0
				WUPD
Field		Bit(s)	Initial	Description
			Value
WUPD		31:0	X	Wakeup Packet Data

13.6.9Flexible Filter Length Table

FFLT (05F00h - 05F18h; R/W)

The Flexible Filter Length Table stores the minimum packet lengths required to pass each of the Flexible Filters. Any packets that are shorter than the programmed length won’t pass that filter. Each Flexible Filter considers a packet that doesn’t have any mismatches up to that point to have passed the Flexible Filter when it reaches the required length. It does not check any bytes past that point.

All reserved fields read as 0b’s and ignore writes.

334 Software Developer’s Manual