參數(shù)資料
型號: 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)交換機控制器
文件頁數(shù): 73/85頁
文件大?。?/td> 4222K
代理商: ADM6926
ADM6926
Function Description
3.3.16 Read Counter Control & Status Register
Read Counter Control Register (Offset: 15h), Read Counter Status Register (Offset: 16h)
1.
Read Counter Control Register
Configuration
Description
Bit[8]
Access (busy) bit
Bit[7:0]
Counter Index
2.
Read Counter Status Register
Configuration
Description
Bit[31:0]
The corresponding counter index by the Bit[7:0] is returned here.
3.
Note: This register provides user to read counter if he wants to use fast
management clock (fast than 5mhz).
4.
Rules:
Step 1: Read the Busy bit to check if the read counter module is busy.
Step 2: If the module is free, write the counter index and access bit into the
control register.
Step 3: Poll the Busy bit. If Busy = 1’b1, wait. If Busy = 1’b0, read the status
register.
5.
Example: Users want to read Port 1 Receive Packet Count
Step 1: Read Bit[8] to check if the read counter module is busy
Step 2: If Bit[8] = 0, then write bit[8] = 1’b1, Bit[7:0] = 8’b1 into the register.
Step 3: Then Port 1 Receive Packet Count will be loaded into the Counter Status
Register (Offset: 16h)
Step 4: Read Counter Status Register (Offset: 16h) and the content read is the Port
1 Receive Packet Count.
3.3.17 Reload MDIO Register (Offset: 17h)
Configuration
Description
Bit[0]
Port 0 MDIO Register Reload
1 = Status of Port 0 PHY attached will be reloaded and updated to the switch. After
PHY is reloaded, Bit[0] will be cleared.
Bit[1]
Port 1 MDIO Register Reload
Bit[2]
Port 2 MDIO Register Reload
Bit[3]
Port 3 MDIO Register Reload
Bit[4]
Port 4 MDIO Register Reload
Bit[5]
Port 5 MDIO Register Reload
Bit[6]
Port 6 MDIO Register Reload
Bit[7]
Port 7 MDIO Register Reload
Bit[8]
Port 8 MDIO Register Reload
Bit[9]
Port 9 MDIO Register Reload
Bit[10]
Port 10 MDIO Register Reload
Bit[11]
Port 11 MDIO Register Reload
Bit[12]
Port 12 MDIO Register Reload
Bit[13]
Port 13 MDIO Register Reload
Bit[14]
Port 14 MDIO Register Reload
Bit[15]
Port 15 MDIO Register Reload
Bit[16]
Port 16 MDIO Register Reload
Bit[17]
Port 17 MDIO Register Reload
Bit[18]
Port 18 MDIO Register Reload
Default
1’h0
8’h0
Default
32’h0
ADMtek Inc.
3-57
Default
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
1’b0
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