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LAN9500 Datasheet, PDF (61/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode
LAN950x
TABLE 5-48: WAKEUP FRAME FILTER REGISTER STRUCTURE (LAN9500A/LAN9500AI ONLY)
Filter 4 Byte Mask 0
Filter 4 Byte Mask 1
Filter 4 Byte Mask 2
Filter 4 Byte Mask 3
Filter 5 Byte Mask 0
Filter 5 Byte Mask 1
Filter 5 Byte Mask 2
Filter 5 Byte Mask 3
Filter 6 Byte Mask 0
Filter 6 Byte Mask 1
Filter 6 Byte Mask 2
Filter 6 Byte Mask 3
Filter 7 Byte Mask 0
Filter 7 Byte Mask 1
Filter 7 Byte Mask 2
Filter 7 Byte Mask 3
Reserved
Filter 3
Command
Reserved
Filter 2
Command
Reserved
Filter 1
Command
Reserved
Filter 0
Command
Reserved
Filter 7
Command
Reserved
Filter 6
Command
Reserved
Filter 5
Command
Reserved
Filter 4
Command
Filter 3 Offset
Filter 2 Offset
Filter 1Offset
Filter 0 Offset
Filter 7 Offset
Filter 6 Offset
Filter 5 Offset
Filter 4 Offset
Filter 1 CRC-16
Filter 0 CRC-16
Filter 3 CRC-16
Filter 2 CRC-16
Filter 5 CRC-16
Filter 4 CRC-16
Filter 7 CRC-16
Filter 6 CRC-16
The Filter i Byte Mask defines which incoming frame bytes Filter i will examine to determine whether or not this is a
Wakeup Frame. Table 5-49, describes the byte mask’s bit fields.
Filter x Mask 0 corresponds to bits [31:0]. Where the lsb corresponds to the first byte on the wire.
Filter x Mask 1 corresponds to bits [63:32]. Where the lsb corresponds to the first byte on the wire.
Filter x Mask 2 corresponds to bits [95:64]. Where the lsb corresponds to the first byte on the wire.
Filter x Mask 3 corresponds to bits [127:96]. Where the lsb corresponds to the first byte on the wire.
The following tables define elements common to both WUFF register structures.
TABLE 5-49: FILTER I BYTE MASK BIT DEFINITIONS
FILTER I BYTE MASK DESCRIPTION
Bits
Description
127:0
Byte Mask: If bit j of the byte mask is set, the CRC machine processes byte pattern-offset + j of the
incoming frame. Otherwise, byte pattern-offset + j is ignored.
The Filter i command register controls Filter i operation. Table 5-50 shows the Filter I command register.
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DS00001875A-page 61