參數(shù)資料
型號: ZL50418GKC
廠商: Zarlink Semiconductor Inc.
英文描述: Managed 16-Port 10/100 M + 2-Port 1 G Ethernet Switch
中文描述: 管理16端口10/100平方米端口1個G以太網(wǎng)交換機(jī)
文件頁數(shù): 82/163頁
文件大小: 2122K
代理商: ZL50418GKC
ZL50418
Data Sheet
82
Zarlink Semiconductor Inc.
CPU receive queue status
- Bit [3:0]: Queue 3 to 0 not empty
- Bit [4]: Head of line entry for Queue 0 is valid for too long. CPU Queue 0 has no WRED threshold.
- Bit [7:5]: Head of line entry for Queue 3 to 1 is valid for too long or Queue length is longer than WRED
threshold.
TX_AGE – Tx Queue Aging timer
I
2
C Address: h07;CPU Address:h324
Accessed by CPU, serial interface (RW)
- Bit [5:0]: Unit of 100ms
(Default 8)
Disable transmission queue aging if value is zero. Aging timer for all ports and queues.
This register must be set to 0 for ‘No Packet Loss Flow Control Test’.
14.8 (Group 4 Address) Search Engine Group
14.8.1 AGETIME_LOW – MAC address aging time Low
I
2
C Address h0A8; CPU Address:h400
Accessed by CPU, serial interface and I
2
C (R/W)
The ZL50418 removes the MAC address from the data base and sends a Delete MAC Address Control Command
to the CPU. MAC address aging is enable/disable by boot strap TSTOUT9.
Bit [7:0] Low byte of the MAC address aging timer.
14.8.2 AGETIME_HIGH –MAC address aging time High
I
2
C Address h0A9; CPU Address h401
Accessed by CPU, serial interface and I
2
C (R/W)
Bit [7:0]: High byte of the MAC address aging timer.
The default setting provide 300 seconds aging time. Aging time is based on the following equation:
{AGETIME_TIME,AGETIME_LOW} X (# of MAC entries in the memory X100μsec). Number of MAC entries = 32 K
when 1 MB is used per Bank. Number of entries = 64 K when 2 MB is used per Bank.
7
6
5
0
Tx Queue Agent
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