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AR8327-AL1A-R 数据表(PDF) 181 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) 181 Page - List of Unclassifed Manufacturers

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Atheros Communications, Inc.
AR8327/AR8327N Seven-port Gigabit Ethernet
Switch
•
181
Table 3-153, “QM Control Register,” on page 181 summarizes the QM_CTRL_REG Register
Table 3-153.
QM Control Register
Bit
R/W
Inital
Value
Mnemonic
Description
31:30
R/O
0
RESERVED
29:28
R/O
0
RESERVED
27:26
R/O
0
RESERVED
25:24
R/O
0
RESERVED
23:11
R/O
0
RESERVED
10
R/W
0
QM_FUNC_TEST
1'b1: function test, qm should drop all
packets from port1,2,3,4,5
9
R/W
0
MS_FC_EN
Multicast server flow control enable
8
R/O
0
RESERVED
7
R/W
0
RATE_DROP_EN
drop packet enable due to rate limit.
1'b1: switch will drop frames due to
rate limit.
1'b0: switch would use flow control to
the source port due to rate limit, if the
port won't stop switch will drop frame
from that port.
6
R/W
0
FLOW_DROP_EN
1'b1: packet could be drop due to flow
control except the highest priority
packet.
1'b0: switch won't drop packets due to
flow control
5:0
R/W
'hE
FLOW_DROP_CNT
Max free queue could be use after the
port has been flow control. Then
packets should be drop except the
highest priori.
Default value 'hE is set to normal
packets which length is no more than
1518 bytes. For jumbo frame, 'd33 is
commanded.



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