參數(shù)資料
型號(hào): MVTX2601AG
廠商: ZARLINK SEMICONDUCTOR INC
元件分類(lèi): 網(wǎng)絡(luò)接口
英文描述: Unmanaged 24-Port 10/100 Mbps Ethernet Switch
中文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA553
封裝: 37.50 X 37.50 MM, 2.33 MM HEIGHT, MS-034, HSBGA-553
文件頁(yè)數(shù): 44/91頁(yè)
文件大?。?/td> 686K
代理商: MVTX2601AG
MVTX2601
Data Sheet
44
Zarlink Semiconductor Inc.
12.7.4 AVPML – VLAN Priority Map
I
2
C Address h0AD; CPU Address:h503
Accessed by serial interface and I
2
C (R/W)
Registers AVPML, AVPMM, and AVPMH allow the eight VLAN priorities to map into eight internal level transmit
priorities. Under the internal transmit priority, seven is highest priority where as zero is the lowest. This feature
allows the user the flexibility of redefining the VLAN priority field. For example, programming a value of 7 into bit 2:0
of the AVPML register would map VLAN priority 0 into internal transmit priority 7. The new priority is used inside the
2601. When the packet goes out it carries the original priority.
Bit [3:0]:
U2MR: Unicast to Multicast Rate. Units in terms of time base defined in
bits [6:4]. This is used to limit the amount of flooding traffic. The value
in U2MR specifies how many packets are allowed to flood within the
time specified by bit [6:4]. To disable this function, program U2MR to
0. (
Default = 8
)
Bit [6:4]:
TimeBase:
000 = 100 us
001 = 200 us
010 = 400 us
011 = 800 us
100 = 1.6 ms
101 = 3.2 ms
110 = 6.4 ms
111 = 100 us (same as 000)
(Default = 000)
Bit [7]:
Select VLAN tag or TOS (IP packets) to be preferentially picked to map
transmit priority and drop priority (
Default = 0
).
0 – Select VLAN Tag priority field over TOS
1 – Select TOS over VLAN tag priority field
7
6
5
3
2
0
VP2
VP1
VP0
Bit [2:0]:
Priority when the VLAN tag priority field is 0
(Default 0)
Bit [5:3]:
Priority when the VLAN tag priority field is 1
(Default 0)
Bit [7:6]:
Priority when the VLAN tag priority field is 2
(Default 0)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MVTX2601AG2 制造商:Microsemi Corporation 功能描述:
MVTX2602 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Managed 24 Port 10/100 Mbps Ethernet Switch
MVTX2602A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MVTX260x Port Mirroring
MVTX2602AG 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Managed 24 Port 10/100 Mbps Ethernet Switch
MVTX2602AG2 制造商:Microsemi Corporation 功能描述: