AR8327-AL1A-R datasheet(166/394 Pages) ETC2

166 / 394 page

166 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch

Atheros Communications, Inc.

166 • June 2011

COMPANY CONFIDENTIAL

3.6.38

PORT5_LEARN_LIMIT

Address 0x06A4

SFT&HW RST

Table 3-144 summarizes the PORT5_LEARN_LIMIT Register

Table 3-144.

Port 5 Learn Limit Control Register

3:2

R/W

IP_PRI_SEL_5

IP priority selected level for QOS.

1:0

R/O

RESERVED

Bit

R/W

Inital

Value

Mnemonic

Description

Bit

R/W

Inital

Value

Mnemonic

Description

31:28

R/O

RESERVED

R/W

IGMP_LEARN_LIMIT_EN_5

1'b1: IGMP Learn Limit enable.

R/W

IGMP_LEARN_LIMIT_DROP_EN

1'b1: if IGMP GROUP ADDR is not in

ARL table or IGMP GROUP ADDR in

ARL but port member is not the source

port, packet should be dropped when

Learned MAC address counter is equal

to IGMP_JOIN_CNT_4

1'b0: if IGMP GROUP ADDR is not in

ARL table or IGMP GROUP ADDR in

ARL but port member is not the source

port, packet should be redirect to cpu

when Learned MAC address counter

is equal to IGMP_JOIN_CNT_4

25:16

R/W

IGMP_JOIN_CNT_5

HARDWARE JOIN IGMP. WHEN

JOIN NEW ENTRY OR NEW PORT TO

IGMP +1, LEAVE OR AGE -1

15:12

R/W

SA_LEARN_STATUS_5

IF LESS THAN 0X7, DYNAMIC CAN

BE FRESH TO SETTING VALUE AND

AGE

R/W

SA_LEARN_LIMIT_EN_5

1'b1: SA Learn Limit enable.

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