參數(shù)資料
型號: MVTX2802AG
廠商: ZARLINK SEMICONDUCTOR INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: Managed 4-Port 1000 Mbps Ethernet Switch
中文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA596
封裝: 40 X 40 MM, 2.33 MM HEIGHT, MS-034, HSBGA-596
文件頁數(shù): 78/154頁
文件大?。?/td> 1936K
代理商: MVTX2802AG
MVTX2802
Data Sheet
78
Zarlink Semiconductor Inc.
Map TOS field in IP packet into four level transmit priorities:
11.9.1.10 AVDM – VLAN Discard Map
I
2
C Address h047, CPU Address:h509
Accessed by CPU, serial interface and I
2
C (R/W)
Map VLAN priority into frame discard when low priority buffer usage is above threshold. Frames with high
discard (drop) priority will be discarded (dropped) before frames with low drop priority.
0 – Low discard priority
1 – High discard priority
11.9.1.11 TOSDML – TOS Discard Map
I
2
C Address h048, CPU Address:h50A
Accessed by CPU, serial interface and I
2
C (R/W)
Map TOS into frame discard when low priority buffer usage is above threshold
Bit [1:0]:
Mapped priority when TOS is 5
(Default 01)
Bit [4:2]:
Mapped priority when TOS is 6
(Default 110)
Bit [7:5]:
Mapped priority when TOS is 7
(Default 111)
7
6
5
4
3
2
1
0
FD7
FD6
FD5
FD4
FD3
FD2
FD1
FD0
Bit [0]:
Frame discard priority for frames with VLAN transmit priority 0
(Default 0)
Bit [1]:
Frame discard priority for frames with VLAN transmit priority 1
(Default 0)
Bit [2]:
Frame discard priority for frames with VLAN transmit priority 2
(Default 0)
Bit [3]:
Frame discard priority for frames with VLAN transmit priority 3
(Default 0)
Bit [4]:
Frame discard priority for frames with VLAN transmit priority 4
(Default 0)
Bit [5]:
Frame discard priority for frames with VLAN transmit priority 5
(Default 0)
Bit [6]:
Frame discard priority for frames with VLAN transmit priority 6
(Default 0)
Bit [7]:
Frame discard priority for frames with VLAN transmit priority 7
(Default 0)
7
6
5
4
3
2
1
0
FDT7
FDT6
FDT5
FDT4
FDT3
FDT2
FDT1
FDT0
Bit [0]:
Frame discard priority for frames with TOS transmit priority 0
(Default 0)
Bit [1]:
Frame discard priority for frames with TOS transmit priority 1
(Default 0)
Bit [2]:
Frame discard priority for frames with TOS transmit priority 2
(Default 0)
Bit [3]:
Frame discard priority for frames with TOS transmit priority 3
(Default 0)
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