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参数资料
型号： WJLXT971ALC.A4
厂商： INTEL CORP
元件分类： 网络接口
英文描述： DATACOM, ETHERNET TRANSCEIVER, PQFP64
封装： ROHS COMPLIANT, LQFP-64
文件页数： 4/110页
文件大小： 1462K
代理商： WJLXT971ALC.A4
Intel
LXT971A Single-Port 10/100 Mbps PHY Transceiver
Datasheet
101
Document Number: 249414-003
Revision Date: June 18, 2004
Table 59 lists LED configuration bits.
Table 59. LED Configuration Register - Address 20, Hex 14 (Sheet 1 of 2)
Bit
Name
Description
Type 1
Default
20.15:12
LED1
Programming
bits
0000 = Display Speed Status (Continuous, Default)
0001 = Display Transmit Status (Stretched)
0010 = Display Receive Status (Stretched)
0011 = Display Collision Status (Stretched)
0100 = Display Link Status (Continuous)
0101 = Display Duplex Status (Continuous)
0110 = Unused
0111 = Display Receive or Transmit Activity (Stretched)
1000 = Test mode - turn LED on (Continuous)
1001 = Test mode - turn LED off (Continuous)
1010 = Test mode - blink LED fast (Continuous)
1011 = Test mode - blink LED slow (Continuous)
1100 = Display Link and Receive Status combined 2
(Stretched)
3
1101 = Display Link and Activity Status combined 2
(Stretched)
3
1110 = Display Duplex and Collision Status combined 4
(Stretched)
3
1111 = Unused
R/W
0000
20.11:8
LED2
Programming
bits
0000 = Display Speed Status
0001 = Display Transmit Status
0010 = Display Receive Status
0011 = Display Collision Status
0100 = Display Link Status (Default)
0101 = Display Duplex Status
0110 = Unused
0111 = Display Receive or Transmit Activity
1000 = Test mode - turn LED on
1001 = Test mode - turn LED off
1010 = Test mode - blink LED fast
1011 = Test mode - blink LED slow
1100 = Display Link and Receive Status combined
2
(Stretched)3
1101 = Display Link and Activity Status combined
2
(Stretched)3
1110 = Display Duplex and Collision Status combined
4
(Stretched)3
1111 = Unused
R/W
0100
1. R/W = Read /Write. RO = Read Only. LH = Latching High
2. Link status is the primary LED driver. The LED is asserted (solid ON) when the link is up.
The secondary LED driver (Receive or Activity) causes the LED to change state (blink).
Activity causes the LED to blink, regardless of the link status.
3. Combined event LED settings are not affected by Pulse Stretch Register bit 20.1. These display settings
are stretched regardless of the value of 20.1.
4. Duplex status is the primary LED driver. The LED is asserted (solid ON) when the link is full-duplex.
Collision status is the secondary LED driver. The LED changes state (blinks) when a collision occurs.
5. Values are approximations. Not guaranteed or production tested.
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