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COMe-bEP7 Module User Guide
www.kontron.com
// 42
Table 15: ATX Mode
State
PWRBTN#
PWR_OK
V5_StdBy
PS_ON#
VCC
G3
x
x
0V
x
0V
S5
high
low
5V
high
0V
S5
→
S0
PWRBTN
Event
low
→
high
5V
high
→
low
0 V
→
VCC
S0
high
high
5V
low
VCC
5.6.
Single Supply Mode
In single supply mode, without 5V standby the module will start automatically when
VCC power is connected and Power Good input is open or at high level (internal PU
to 3.3V). VCC can be 8.5 V – 20 V.
To power on the module from S5 state press the power button or reconnect VCC.
Suspend/Standby States are not supported in Single Supply Mode.
Table 16: Single Supply Mode
State
PWRBTN#
PWR_OK
V5_StdBy
VCC
G3
0
0
0
0
G3
→
S0
high
open / high
OPEN
connecting
VCC
S5
high
open / high
OPEN
VCC
S5
→
S0
PWRBTN
Event
open / high
OPEN
reconnect
VCC
All ground pins have to be tied to the ground plane of the carrier board.
If any of the supply voltages drops below the allowed operating level
longer than the specified hold-up time, all the supply voltages should be
shut down and left OFF for a time long enough to allow the internal board
voltages to discharge sufficiently.
If the OFF time is not observed, parts of the board or attached peripherals
may work incorrectly or even suffer a reduction of MTBF.
Содержание COMe-bEP7
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Страница 27: ...COMe bEP7 Module User Guide www kontron com 27 Figure 2 Bottom View of COMe bEP7 5 2x COMe interfaces...
Страница 52: ...COMe bEP7 Module User Guide www kontron com 52 HOT Surface Do NOT touch Allow to cool before servicing...