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參數(shù)資料
| 型號(hào)： | 84302 |
| 廠商： | LSI Corporation |
| 英文描述： | 4-Port Fast Ethernet Controller( 4端口快速以太網(wǎng)控制器) |
| 中文描述： | 4端口快速以太網(wǎng)控制器（4端口快速以太網(wǎng)控制器） |
| 文件頁(yè)數(shù)： | 51/96頁(yè) |
| 文件大?。?/td> | 826K |
| 代理商： | 84302 |
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84302 4-Port
Fast Ethernet Controller
4-51
MD400171/C
Table 24. Configuration 3 Register Definition
7
6
5
4
3
2
1
0
CTRROLL
CTRRD
TXSTS_COL
BOFFRST
ROWNT_OR
0
SWRD_DIS
BIDIRBE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit
Symbol
Name
Definition
R/W
Def.
7
CTRROLL
Counter Rollover
Stop Enable
1 = Counters Stop at Maximum Count
0 = Counters Rollover to 0 After Maximum Count
R/W
0
6
CTRRD
Counter Reset On
Read Enable
1 = Counters Reset to 0 When Read (or 1 if a Count
Occurred During Read)
0 = No Reset On Read
R/W
0
5
TXSTS_COL
Transmit Status
Disable On
Collision
1 = Transmit Status Register not updated if Collision
Occurs While Packet is Being Transmitted
0 = Updated
R/W
0
4
BOFFRST
Backoff Counter
Reset
1 = Normal
0 = Reset the Polynomial Counter Used by the
Transmitter to Randomize the Backoff Interval
Upon Collision.
R/W
0
3
ROWNT_OR
ROWNT Override
Select
1 = ROWNT Bit (Bit 3, Config. 1 Reg.) is Forced to
"0" When Device is Put in Full Duplex Mode
0 = Not Forced
R/W
0
2
Reserved, Must Always Remain at Default be
Written to 0 for Proper Operation
R/W
0
1
SWRD_DIS
Status Word
Disable
1 = Status Word Not Appended to End of Receive
Packet
0 = Status Word Appended
R/W
0
0
BIDIRBE
Bidirectional Byte
Enable Select
1 = TXRXBE[3:0] Pins are Bidirectional, i.e.
Inputs During TX FIFO Writes and Outputs
During RX FIFO Reads.
0 = TXRXBE[3:0] Pins are Always Inputs, i.e.
Inputs During TX FIFO Writes and Inputs
During RX FIFO Reads.
R/W
0
Bit 0 Occurs On CDST0/CDST8 Pin
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