參數(shù)資料
型號(hào): ADM6926
廠商: Electronic Theatre Controls, Inc.
英文描述: 26 port 10/100 Mbps Ethernet Switch Controller
中文描述: 26端口10/100 Mbps以太網(wǎng)交換機(jī)控制器
文件頁(yè)數(shù): 74/85頁(yè)
文件大?。?/td> 4222K
代理商: ADM6926
ADM6926
Function Description
Configuration
Bit[19]
Bit[20]
Bit[21]
Bit[22]
Bit[23]
Bit[24]
Bit[25]
Description
Default
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
Port 19 MDIO Register Reload
Port 20 MDIO Register Reload
Port 21 MDIO Register Reload
Port 22 MDIO Register Reload
Port 23 MDIO Register Reload
Port 24 MDIO Register Reload
Port 25 MDIO Register Reload
3.3.18 Spanning Tree Port State 0 (Offset: 18h)
Configuration
Bit[1:0]
Port 0 Spanning Tree Port Status
Bit[3:2]
Port 1 Spanning Tree Port Status
Bit[5:4]
Port 2 Spanning Tree Port Status
Bit[7:6]
Port 3 Spanning Tree Port Status
Bit[9:8]
Port 4 Spanning Tree Port Status
Bit[11:10]
Port 5 Spanning Tree Port Status
Bit[13:12]
Port 6 Spanning Tree Port Status
Bit[15:14]
Port 7 Spanning Tree Port Status
Bit[17:16]
Port 8 Spanning Tree Port Status
Bit[19:18]
Port 9 Spanning Tree Port Status
Bit[21:20]
Port 10 Spanning Tree Port Status
Bit[23:22]
Port 11 Spanning Tree Port Status
Bit[25:24]
Port 12 Spanning Tree Port Status
Bit[27:26]
Port 13 Spanning Tree Port Status
Bit[29:28]
Port 14 Spanning Tree Port Status
Bit[31:30]
Port 15 Spanning Tree Port Status
Note:
The ADM6926 supports 4 port status to support Spanning Tree Protocol
00 = Forwarding State. The port acts as the normal mode.
01 = Disabled State. The port entity will not transmit and receive any packets. Learning is
disabled in this state.
10 = Learning State. The port entity will only transmit and receive management packets.
All other packets are discarded.
Learning is enabled for all good frames.
11 = Blocking-not-Listening. Only the management packets defined by the ADM6926
will be received and transmitted.
All other packets are discarded by the port entity. Learning is disabled in this state.
3.3.19 Spanning Tree Port State 1 (Offset: 19h)
Configuration
Description
Bit[1:0]
Port 16 Spanning Tree Port Status
Bit[3:2]
Port 17 Spanning Tree Port Status
Bit[5:4]
Port 18 Spanning Tree Port Status
Bit[7:6]
Port 19 Spanning Tree Port Status
Bit[9:8]
Port 20 Spanning Tree Port Status
Bit[11:10]
Port 21 Spanning Tree Port Status
Bit[13:12]
Port 22 Spanning Tree Port Status
Bit[15:14]
Port 23 Spanning Tree Port Status
Description
Default
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
ADMtek Inc.
3-58
Default
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
2’h0
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