Power Leds; External Speaker; Figure 12. Location Of The D11 Dual-Color Led - VersaLogic BayCat VL-EPM-31ECP Hardware Reference Manual

P LED
OWER S
Figure 12 shows the location of the dual green/yellow LED. This dual LED indicates the
following:

The green LED illuminates when all power rails are within specified limits and indicates
that the board is in the S0 power state. If any power rail is not within specified limits, the
green LED will not illuminate. The green LED blinks at a slow rate when the processor
is in a sleep or hibernate mode indicating that the sustain rail power is still within
specified limits

The yellow LED is a fault indicator that illuminates if there is a problem with the
processor booting. (Software can also be used to turn on this LED to indicate a major
software failure.)
The power LED on the VL-CBR-4005B5 indicates that the paddleboard is being powered by the
+3.3 V supply (though it does not indicate that all S0 power supplies are within specified limits).
The LED is lit only when the board is in the S0 power state. If the board enters a Sleep or
Hibernate mode, the LED will not be lit.

External Speaker

A miniature 8 Ω speaker can be connected between user I/O connector J4, pin 15 (SPKR#) and
J4, pin 13 (V3P3). A speaker is provided on the CBR-4005B paddleboard. See Figure 31 on page
64 for the location of the speaker on the CBR-4005B paddleboard.
EPM-31 Hardware Reference Manual

Figure 12. Location of the D11 Dual-color LED

Board Features
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