Si5342-EVB
Rev. 1.0
5
5. Status LEDs
D5, D7, D14, D15, D16, and D17 are status LEDs indicating the device alarms currently asserted. D11 is
illuminated when USB +5 V supply voltage is present. D12 and D13 are status LEDs showing on-board MCU
activity.
Figure 3. Status LEDs
Si5342
EVB
Status
LEDs
Location
Silkscreen
Color
Status
Function
Indication
D5
INTRB
Blue
MCU INTR (Interrupt) active
D7
LOLB
Blue
MCU INTR (Interrupt) active
D14
LOS0B*
Blue
IN0 Loss of Signal indicator
D15
LOS1B*
Blue
IN0 Loss of Signal indicator
D16
LOS3B*
Blue
IN0 Loss of Signal indicator
D17
LOS2B*
Blue
IN0 Loss of Signal indicator
D11
+5V MAIN
Green Main USB +5V present
D12
READY
Green MCU Ready
D13
BUSY
Green MCU Busy
Note:
The LOSxB LEDs may be dim when the EVB is first plugged in. Once
ClockBuilderPro is launched, the LEDs will begin to function normally.
