LULXT9785MBC.D0-865133 Cortina Systems Inc, LULXT9785MBC.D0-865133 Datasheet - Page 204
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LULXT9785MBC.D0-865133
Manufacturer Part Number
LULXT9785MBC.D0-865133
Description
Manufacturer
Cortina Systems Inc
Datasheet
1.LULXT9785MBC.D0-865133.pdf
(221 pages)
Specifications of LULXT9785MBC.D0-865133
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LXT9785/LXT9785E
Datasheet
249241, Revision 11.0
16 April 2007
Table 97
Cortina Systems
LED Configuration Register (Address 20, Hex 14)
®
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.
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
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
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)
2
2
(Blink)
(Default)
4
4
7.0 Register Definitions
Type
R/W
R/W
1
Page 204
Default
0000
1101
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