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AR8327-AL1A-R 数据表(PDF) 148 Page - List of Unclassifed Manufacturers

部件名 AR8327-AL1A-R
功能描述  Seven-port Gigabit Ethernet Switch
PDF  394 Pages
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制造商  ETC2 [List of Unclassifed Manufacturers]
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标志 ETC2 - List of Unclassifed Manufacturers

AR8327-AL1A-R 数据表(HTML) 148 Page - List of Unclassifed Manufacturers

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148 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch
Atheros Communications, Inc.
148 • June 2011
COMPANY CONFIDENTIAL
3.6.26
PORT1_LEARN_LIMIT
Address 0x0674
SFT&HW RST
Table 3-132, “Port 1 Learn Limit Register,” on page 148 summarizes the PORT1_LEARN_LIMIT
Register
Table 3-132.
Port 1 Learn Limit Register
7:6
R/W
0
DA_PRI_SEL_1
DA priority selected level for QOS.
There are five levels priority for QOS.
The highest is priority in packet
header.
The others are selected by these bits. If
these bits are set to zero, DA priority is
selected after header. If these bits are
set to n, DA priority is selected after the
priority set to n-1.
5:4
R/W
1
VLAN_PRI_SEL_1
3:2
R/W
2
IP_PRI_SEL_1
DA priority selected level for QOS.
1:0
R/O
0
RESERVED
IP priority selected level for QOS.
Bit
R/W
Inital
Value
Mnemonic
Description
Bit
R/W
Inital
Value
Mnemonic
Description
31:28
R/O
0
RESERVED
27
R/W
0
IGMP_LEARN_LIMIT_EN_1
1'b1: IGMP Learn Limit enable.
26
R/W
0
IGMP_LEARN_LIMIT_DROP_EN
_1
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_1
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_1
25:16
R/W
0
IGMP_JOIN_CNT_1
HARDWARE JOIN IGMP. WHEN
JOIN NEW ENTRY OR NEW PORT TO
IGMP +1, LEAVE OR AGE -1
15:12
R/W
7
SA_LEARN_STATUS_1
IF LESS THAN 0X7, DYNAMIC CAN
BE FRESH TO SETTING VALUE AND
AGE
11
R/W
0
SA_LEARN_LIMIT_EN_1
1'b1: SA Learn Limit enable.



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