Portwell COM Express PCOM-B700G User Manual page 44

COM Express™
B47 ESPI_EN
B48 USB0_HOST_PRSNT
B49 SYS_RESET#
Copyright © PORTWELL 2018
This signal is used by the Carrier
to indicate the operating mode of
the LPC/eSPI bus. If pulled down
by the Carrier LPC mode is
selected. If pulled up or left
floating, eSPI is selected if
available. This signal is pulled up
on the Module. This signal is a
"don't care" for Modules that do
not support eSPI
Module USB client may may
detect the presence of a USB host
on USB0. A high value
indicates that a host is present.
Reset button input. Active low
request for module to reset and
reboot. May be falling edge
sensitive. For situations when
SYS_RESET# is not able to
reestablish control of the system,
PWR_OK or a power cycle may be
used
PORTWELL PCOM-B700G User's Guide
I CMOS NA
I CMOS 3.3V Suspend/ 3.3V
I CMOS 3.3V Suspend / 3.3V
PCOM-B700G User's Guide
- -
- -
PU 4.7k
ohm to -
3VSB
44