AR8327-AL1A-R datasheet(31/394 Pages) ETC2

31 / 394 page

Atheros Communications, Inc.

AR8327/AR8327N Seven-port Gigabit Ethernet

Switch

•

31

[7:6] RESERVED

[5:0] TCP FLAGS

[7] RULE RESULT

INVERSE EN

[6:0] SOURCE PORT

Table 2-9.

IPv4 Pattern

Table 2-10.

IPv4 Mask

Byte

Name

Description

3:0

DIP MASK

7:4

SIP MASK

IP PROTOCOL MASK

DSCP MASK

11:10

TCP/UDP

DESTINATION PORT

MASK/

TCP/UDP

DESTINATION PORT

HIGH

This can be mask or high definition. See byte 14, bit 1.

13:12

TCP/UDP SOURCE

PORT MASK/

TCP/UDP SOURCE

PORT HIGH

OR ICMP TYPE CODE

MASK

This can be mask or high definition. See byte 14, bit 0.

[7] RESERVED

[6] DHCPV4 MASK

[5] RIPv1 MASK

[4:2] RESERVED

[1] TCP/UDP

DESTINATION MASK

Indicates the definition of bytes 11 and 10.

1'b1: mask;

1'b0: range

[0] TCP/UDP SOURCE

MASK

Indicates the definition of bytes 13 and 12.

1'b1: mask;

1'b0: range

[7:6] RESERVED

[5:0] TCP FLAGS MASK

[7:6] RULE VALID

2'b00:start; 2'b01:continue; 2'b10:end; 2'b11:start&end

[5:3] RESERVED

[2:0] RULE TYPE

These three bits must be 3'b010 to indicate the IPv4 rule.

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