lxt9785 Intel Corporation, lxt9785 Datasheet - Page 211

• Manufacturer Part Number: lxt9785
• Description: Advanced 8-port 10/100 Mbps Phy Transceivers
• Manufacturer: Intel Corporation

Datasheet
Document Number: 249241
Revision Number: 007
Revision Date: August 28, 2003
Table 96. LED Configuration Register (Address 20, Hex 14) (Sheet 1 of 2)
1. R/W = Read/Write
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.
15:12
11:8
Bit
The secondary LED driver (Receive, Activity, or Error) causes the LED to change state (blink).
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.
Name
LED1
Programming
bits
LED2
Programming
bits
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
Description
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 = Display Isolate Status (Continuous)
0111= Display Receive or Transmit Activity (Stretched)
1000= est 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
1101= Display Link and Activity Status combined
1110= Display Duplex and Collision Status combined
1111 = Display Link and RxER Status combined
0000 = Display Speed Status
0001 = Display Transmit Status
0010 = Display Receive Status
0011 = Display Collision Status
0100 = Display Link Status
0101 = Display Duplex Status
0110 = Display Isolate Status
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
1101= Display Link and Activity Status combined
1110= Display Duplex and Collision Status combined
1111= Display Link and RxER Status combined
(Stretched)
(Stretched)
(Stretched)
(Stretched)
(Stretched)
(Stretched)
3
3
3
3
3
3
2
2
2
2
(Blink)
(Blink)
2
2
(Default)
4
4
Type
R/W
R/W
1
Default
0000
1101
213