KSZ8795 Evaluation Board User’s Guide
Micrel Inc.
Page 9
1/28/2015
4.5 LED indicators
Ethernet Port LEDs
There are four columns of LED indicators on the board, one column for each of the four ports. The
LED indicators are programmable to two different modes. You can program the LED mode through
Register 11 bits [5:4]. The mode definitions are shown in Table below. There are two LEDs per
port. The naming convention is “LEDx_y”, where “x” is the port number, and “y” is the number of
the LED for that port.
Table 3 LED Modes
Register 11 bits [5:4]
00
01
10
11
LEDx_1
Speed
ACT
Duplex
Duplex
LEDx_0
Link/ACT
Link
Link/ACT
Link
LED1_y are assigned to port 1
LED2_y are assigned to port 2
LED3_y are assigned to port 3
LED4_y are assigned to port 4
Gigabit Port LED
The board also has a Gigabit port LED D3 to indicate the link-up speed for port 5.
Green Color: 1G Link
Red Color: 100M Link
Orange Color: 10M Link
Power LED
The board also has a power LED D7 for the 3.3V power supply. D7 LED indicates Power on and
off.
