Atx Mode; Single Supply Mode - Kontron COMe-cBTi6R E3845 8GB/16S User Manual

Table of Contents

Advertisement

3.5.5

ATX Mode

By connecting an ATX power supply with VCC and 5VSB, PWR_OK is set to low level and VCC is off. Press the Power Button to
enable the ATX PSU setting PWR_OK to high level and powering on VCC. The ATX PSU is controlled by the PS_ON# signal
which is generated by SUS_S3# via inversion. VCC can be 4.75 - 20V in ATX Mode. On Computer-on-Modules supporting a
wide range input down to 4.75V the input voltage shall always be higher than 5V Standby (VCC > 5VSB).
State
G3
S5
S5
S0
S0
3.5.6

Single Supply Mode

In single supply mode (or automatic power on after power loss) 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). PS_ON# is not used in
this mode and VCC can be 4.75 - 20V.
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.
State
G3
G3
S0
S5
S5
S0
18
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
PWRBTN#
PWR_OK
x
x
high
low
PWRBTN Event
low
high
high
high
PWRBTN#
x
high
high
PWRBTN Event
Signals marked with "x" are not important for the specific power state. There is no
difference if connected or open.
All ground pins have to be tied to the ground plane of the carrier board.
V5_StdBy
0V
5V
5V
5V
PWR_OK
V5_StdBy
x
x
open / high
x
open / high
x
open / high
x
COMe-cBTi6R / Product Specification
PS_ON#
VCC
x
0V
high
0V
high
low
0 V
VCC
low
VCC
VCC
0
connecting VCC
VCC
reconnecting VCC

Advertisement

Table of Contents
loading

Table of Contents