参数资料
型号: ZL50408GDG2
厂商: CONEXANT SYSTEMS
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA208
封装: 17 X 17 MM, 1.40 MM HEIGHT, LEAD FREE, MO-192, LBGA-208
文件页数: 126/144页
文件大小: 1779K
代理商: ZL50408GDG2
ZL50408
Data Sheet
82
Zarlink Semiconductor Inc.
In Tag based VLAN Mode
12.3.2.5
PVMAP00_3 – Port 0 Configuration Register 3
IC Address: h3E, CPU Address: h0105
Accessed by CPU and IC (R/W)
In Port Based VLAN Mode
In Tag-based VLAN Mode
Bits [3:0]:
PVID [11:8] (Default is 0xF)
Bit [4]:
Untrusted Port.
This register is used to change the VLAN priority field of a packet to a
predetermined priority.
1: VLAN priority field is changed to Bit [7:5] at ingress port (Default)
0: Keep VLAN priority field
Bits [7:5]:
Untag Port Priority (Default 0x7)
Transmit Priority Level 0 (Lowest)
Transmit Priority Level 1
...
Transmit Priority Level 6
Transmit Priority Level 7 (Highest)
Bits [2:0]:
Reserved
Bits [5:3]:
Default transmit priority. Used when Bit [7]=1 (Default 0)
Transmit Priority Level 0 (Lowest)
Transmit Priority Level 1
...
Transmit Priority Level 6
Transmit Priority Level 7 (Highest)
Bit [6]:
Default drop precedence. Used when Bit [7]=1
0 – Drop Precedence Level 0 (Lowest) (Default)
1 – Drop Precedence Level 1 (Highest)
Bit [7]:
Enable Fix Priority (Default 0)
0 - Disable. All frames are analysed. Transmit Priority and Drop Precedence are
based on VLAN Tag, TOS or Logical Port.
1 - Enable. Transmit Priority and Drop Precedence are based on values
programmed in bit [6:3]
Bit [0]:
Not used
Bit [1]:
Ingress Filter Enable
0 - Disable Ingress Filter. Packets with VLAN not belonging to source port are
forwarded, if destination port belongs to the VLAN. Symmetric VLAN. (Default)
1 - Enable Ingress Filter. Packets with VLAN not belonging to source port are
filtered. Asymmetric VLAN.
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