Technical data

Switches and Indicators Startup and Operation
MVME3100 Single Board Computer Installation and Use (6806800G36A)
29
GENET 2 Activity ACT Blinking Green Activity proportional to bandwidth utilization.
Off No activity
ENET 1 Link/Speed SPEED Off No link
Yellow 10/100Base-T operation
ENET 1 Activity ACT Blinking Green Activity proportional to bandwidth utilization.
Off No activity
Table 2-3 Additional Onboard Status Indicators
Function Label Color Description
User
Defined
LED 2
DS7
(silkscreen)
Green This indicator is illuminated by software assertion of its
corresponding register bit.
User
Defined
LED 3
DS8
(silkscreen)
Green This indicator is illuminated by software assertion of its
corresponding register bit.
Power
Supply Fail
DS1
(silkscreen)
Red This indicator is illuminated to indicate a power supply
fail condition.
sATA 0
Activity
DS4
(silkscreen)
Green sATA 0 or 1 activity in legacy mode (default). sATA 0
activity in DPA mode.
sATA 1
Activity
DS5
(silkscreen)
Green No function in legacy mode (default). sATA 1 activity in
DPA mode.
MPC8540
Ready
DS3
(silkscreen)
Green Indicates that the MPC8540 has completed the reset
operation and is not in a power-down state. The
MPC8540 Ready is multiplexed with the MPC8540
TRIG_OUT so the LED can be programmed to indicate
one of three trigger events based on the value in the
MPC8540 TOSR register.
GENET 1
Link Quality
DS2
(silkscreen)
Off
Slow Blink
Green
Fast Blink
Green
Green
Extremely poor Signal to Noise ratio - cannot receive
data
Poor SNR - receive errors detected
Fair SNR - close to data error threshold
Good SNR on link
GENET 2
Link Quality
DS3 [Same as DS2}
Table 2-2 MVME721 LED Status Indicators (continued)
Function Label Color Description