DS_8430_001
78Q8430 Data Sheet
PMCSR. This action will clear the WAKE event and clear the WAKE bit in the HIR and the PMEB primary
output, if it was enabled. If the HNR timer expires before the host clears the WAKE event then the QDR
bit for QUE5 is set triggering the transmission of the HNR frame contained in QUE5. The length of the
HNR timer is determined by the value contained in the Host Not Responding Count Register (HNRCR).
When configuring for Wake On LAN, the host should set the HNRCR with a value based on the longest
anticipated interrupt service latency.
OnNow Packets
The OnNow specification states that an OnNow compliant node must be able to wake up upon the
reception of a frame that matches a reference frame with a byte mask applied. Table 32 contains the
rules on processing OnNow packets.
Table 32: Process Rules for OnNow Packet
Rule# PrevHit PH-Mask Data D-Mask Next Offset Action Interrupt Comment
0x15
0x14
0x13
0x12
0x11
0x10
0x23
0x15
0x14
0x13
0x12
0x11
0x7F
0x7F
0x7F
0x7F
0x7F
0x7F
0x54 0xFF
0x00 0x00
0x04 0xFF
0x05 0xFF
0x06 0xFF
0x07 0xFF
MD
MD
MD
MD
MD
0x00
0x02
0x00
0x00
0x00
NOP
NOP
NOP
NOP
NOP
WAKE
0
0
0
0
0
0
DONE 0x00
Magic Packets
A magic packet is defined to be a frame that contains a specific sequence of bytes anywhere in its USER
field. Table 33 contains the rules on checking for the sequence in a frame and waking the host if it finds a
magic packet.
Table 33: Process Rules for Magic Packet
Rule# PrevHit
PH-Mask Data D-Mask Next
Offset Action Interrupt Comment
0x0F
0x0E
0x0D
0x0C
0x0B
0x0A
0x09
0x08
0x07
0x06
0x05
0x04
0x03
0x02
0x25
0x23
0x01
0x0F
0x0B
0x00
0x0B
0x03
0x08
0x07
0x06
0x05
0x04
0x02
0x7F
0x7F
0x7F
0x7C
0x7F
0x00
0x7F
0x7F
0x7E
0x7F
0x7F
0x7F
0x7F
0x7F
0xFF 0xFF
0xFF 0xFF
0xFF 0xFF
0xFF 0xFF
0xFF 0xFF
0x00 0x00
0x10 0xFF
0x10 0xFF
0x20 0xFF
0x30 0xFF
0x40 0xFF
0x50 0xFF
0x60 0xFF
0x00 0x00
MD
MD
MD
MD
MD
DONE
MD
MD
MD
MD
MD
MD
MD
0x05 TOC
0x05 TOC
0x05 TOC
0x00 DEC
0x00 NOP
0x00 NOP
0x0F TOC
0x00 NOP
0x00 NOP
0x00 NOP
0x00 NOP
0x00 NOP
0x00 DEC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bare Ethernet
IP payload
offset payload
DONE 0x00 WAKE
Rev. 1.2
43
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
