COMMELL QE-E70 - Manual (Page 20)

LN-D70 User’s Manual
- 20 -
2.3.10
Signal Description
VCC Power Supply +5VDC ±5%.
VCC_5V_SB Standby Power Supply +5VDC ±5%.
VCC_RTC 3 V backup cell input. VCC_RTC should be connected to a 3V
backup cell for RTC operation and storage register non-volatility
in the absence of system power.
(VCC_RTC = 2.4 - 3.3 V).
GND Power Ground.
2.3.11
Signal Description
PWGIN High active input for the QsevenR module indicates that all power
rails located on the carrier board are ready for use.
PWRBTN# Power Button: Low active power button input. This signal is
triggered on the falling edge.
2.3.12
Signal Description
RSTBTN# Reset button input. This input may be driven active low by an
external circuitry to reset the QsevenR module.
BATLOW# Battery low input. This signal may be driven active low by
external circuitry to signal that the system battery is low or may
be used to signal some other external battery management
event.
SUS_STAT# Suspend Status: indicates that the system will be entering a low
power state soon.
SUS_S3# S3 State: This signal shuts off power to all runtime system
components that are not maintained during S3 (Suspend to
Ram), S4
or S5 states.
The signal SUS_S3# is necessary in order to support the optional