WJLXT972MLC.A4 S L7U9 Intel, WJLXT972MLC.A4 S L7U9 Datasheet - Page 87
WJLXT972MLC.A4 S L7U9
Manufacturer Part Number
WJLXT972MLC.A4 S L7U9
Description
Manufacturer
Intel
Datasheet
1.WJLXT972MLC.A4_S_L7U9.pdf
(92 pages)
Specifications of WJLXT972MLC.A4 S L7U9
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Datasheet
Document Number: 302875-005
Revision Date: 27-Oct-2005
Table 54. LED Configuration Register - Address 20, Hex 14 (Sheet 1 of 2)
Table 54
20.15:12
20.11:8
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.
3. Combined event LED settings are not affected by Pulse Stretch Register bit 20.1. These display settings
4. Duplex status is the primary LED driver. The LED is asserted (solid ON) when the link is full-duplex.
5. Values are approximations. Not guaranteed or production tested.
Bit
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.
are stretched regardless of the value of 20.1.
Collision status is the secondary LED driver. The LED changes state (blinks) when a collision occurs.
lists LED configuration bits.
LED1
Programming
bits
LED2
Programming
bits
Name
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
(Stretched)
1101 = Display Link and Activity Status combined
(Stretched)
1110 = Display Duplex and Collision Status combined
(Stretched)
1111 = Unused
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
(Stretched)
1101 = Display Link and Activity Status combined
(Stretched)
1110 = Display Duplex and Collision Status combined
(Stretched)
1111 = Unused
Intel
3
3
3
3
3
3
®
LXT972M Single-Port 10/100 Mbps PHY Transceiver
Description
2
2
2
2
4
4
Type
R/W
R/W
1
Default
0000
0100
87
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