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參數(shù)資料
| 型號： | MDS108AL |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 網(wǎng)絡接口 |
| 英文描述： | MicroFit 3.0 Header Vert CPI 6 ckt 569 |
| 中文描述： | DATACOM, LAN SWITCHING CIRCUIT, PQFP208 |
| 封裝： | 28 X 28 MM, 3.32 MM HEIGHT, PLASTIC, MO-143, QFP-208 |
| 文件頁數(shù)： | 18/37頁 |
| 文件大?。?/td> | 308K |
| 代理商： | MDS108AL |
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MDS108
Data Sheet
18
Zarlink Semiconductor Inc.
12.11 AVDM – VLAN Discard Map
Access: parallel interface and I
2
C, Read/Write
Address: h07
12.12 TOSPM – TOS Priority Map
Access: parallel interface and I
2
C, Read/Write
Address: h08
12.13 PTPRI – Port Priority
Access: parallel interface and I
2
C, Read/Write
Address: h09
Map VLAN tag into frame discard levels (0 = low drop, 1 = high drop).
Bit 0
Frame discard for tag value 0
(Default 0)
Bit 1
Frame discard for tag value 1
(Default 0)
Bit 2
Frame discard for tag value 2
(Default 0)
Bit 3
Frame discard for tag value 3
(Default 0)
Bit 4
Frame discard for tag value 4
(Default 0)
Bit 5
Frame discard for tag value 5
(Default 0)
Bit 6
Frame discard for tag value 6
(Default 0)
Bit 7
Frame discard for tag value 7
(Default 0)
Map TOS field in IP packet into 2 transmit queues (0 = low priority, 1 = high priority).
Bit 0
Mapped priority when TOS is 0
Mapped priority when TOS is 1
1
(Default 0)
Bit 1
1. TOS = 1 means the appropriate 3-bit TOS subfield is “001.
(Default 0)
Bit 2
Mapped priority when TOS is 2
(Default 0)
Bit 3
Mapped priority when TOS is 3
(Default 0)
Bit 4
Mapped priority when TOS is 4
(Default 0)
Bit 5
Mapped priority when TOS is 5
(Default 0)
Bit 6
Mapped priority when TOS is 6
(Default 0)
Bit 7
Mapped priority when TOS is 7
(Default 0)
Enable and configure port-based priorities for ports 0, 1, 2, and 3
Bit 0
EN0
Port 0: Enable; 1 = enabled
(Default 0)
Bit 1
P0
Port 0: Priority; 1 = high, 0 = low
(Default 0)
Bit 2
EN1
Port 1: Enable; 1 = enabled
(Default 0)
Bit 3
P0
Port 1: Priority; 1 = high, 0 = low
(Default 0)
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