
TME-104-CLR-86DX-R0V2.doc
Rev. 0.2
11(
44
)
2.3
LED indicators
The onboard LED indicators provide a very comfortable way to check the board’s status. The boot success,
power status, IDE accesses, Watchdog and Ethernet accesses are all visible.
The LED indicators are located on top of the board, near the PC/104 connector.
Green LED indicates data traffic on COM1.
COM1 TXD
Green LED indicates data traffic on COM2.
COM2 TXD
Red LED lights up whenever the SMC Watchdog was triggered. LED can only be reset by a
power off.
WD_ACTIVE#
Green LEDs show blink codes for debugging.
SMC P10…P12
Green LED will light down if Ethernet runs in duplex mode.
Eth Duplex
Green LED lights up on Ethernet link. It blinks on Ethernet action.
Eth Link/Act
Yellow LED lights down when FPGA is in Suspend. It lights up if configuration has been
realized successfully.
FPGA AWAKE
Green LED lights high up while reading configuration.
FPGA INIT_B
Green LED lights up when FPGA finished reading configuration.
FPGA DONE
Yellow LED indicates data traffic on IDE and MicroSD.
IDE/SD
SMC WD_ACTIVE#
SMC P10
SMC P11
SMC P12
ETH DUPLEX
ETH LINK_ACT
FPGA AWAKE
FPGA INIT_B
FPGA DONE
IDE/SD
COM1 TDX
COM2 TDX