参数资料
型号: ZL50418/GKC
厂商: ZARLINK SEMICONDUCTOR INC
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA553
封装: 37.50 X 37.50 MM, 2.33 MM HEIGHT, MS-034, HSBGA-553
文件页数: 7/155页
文件大小: 1928K
代理商: ZL50418/GKC
ZL50418
Data Sheet
104
Zarlink Semiconductor Inc.
12.3.4.12
TX_AGE – Tx Queue Aging timer
I2C 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’.
12.3.5
(Group 4 Address) Search Engine Group
12.3.5.1
AGETIME_LOW – MAC address aging time Low
I2C Address h0A8; CPU Address:h400
Accessed by CPU, serial interface and I2C (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.
12.3.5.2
AGETIME_HIGH –MAC address aging time High
I2C Address h0A9; CPU Address h401
Accessed by CPU, serial interface and I2C (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 X100sec). Number of MAC entries = 32K
when 1 MB is used per Bank. Number of entries = 64K when 2 MB is used per Bank.
12.3.5.3
V_AGETIME – VLAN to Port aging time
CPU Address h402
Accessed by CPU (R/W)
Bit [7:0] (Default FF) V_AGETIME X 256 X 100 msec is the age time for the VLAN. This timer is for controlling how
long a port is associated to a particular VLAN. It can use dynamic shrinking of a VLAN domain if no packet arrives
for the VLAN. The ZL50418 does not remove the port from the VLAN domain. It sends an Age VLAN Port Control
Command to the CPU. The CPU has to remove the port.
76
5
0
Tx Queue Agent
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