Q2686 Wavecom, Q2686 Datasheet - Page 52

• Manufacturer Part Number: Q2686
• Description: Wireless CPU
• Manufacturer: Wavecom

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3.14
This input is used to switch the Wireless CPU
A high-level signal must be provided on the ON/~OFF pin to switch ON the
Wireless CPU
To switch OFF the Wireless CPU
Wireless CPU
Warning:
All external signals must be inactive when the Wireless CPU
avoid any damage when starting and allow the Wireless CPU
correctly.
3.14.1 Operating Sequences
3.14.1.1 Power-ON
Once the Wireless CPU
signal to high to start the Wireless CPU
signal must be held high during a minimum delay of T
delay on the ON/~OFF signal) to power-ON. After this delay, an internal
mechanism maintains the Wireless CPU
During the power-ON sequence, an internal reset is automatically performed by
the Wireless CPU
during this phase.
Once initialization is completed (timing is SIM- and network-dependent), the
AT interface answers "OK" to the application. For further details, please check
the AT Commands Interface Guide [7].
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without
prior written agreement.
WM_PRJ_Q2686_PTS_001-007
ON/∼OFF
Parameter
Signal
ON / ~OFF signal
V
V
IH
IL
®
®
. This signal can be left at high level until switch-off.
can be switched off via the Operating System.
confidential ©
®
Pin number
for 40ms (typical). Any external reset should be avoided
Electrical characteristics of the signals
I/O type
CMOS
CMOS
19
®
is supplied, the application must set the ON/OFF
Pin description
I/O
I
VBATT x 0.8
®
Minimum
, the ON/OFF pin must be released. The
®
I/O type
CMOS
in power-ON condition.
®
power-ON sequence. The ON/OFF
®
Quik Q2686 ON or OFF.
VBATT x 0.2
Maximum
Q2686 Wireless CPU
VBATT
Wireless CPU
on/off-hold
Description
Power-ON
®
®
module is OFF to
to start and stop
(Minimum hold
Unit
®
V
V
Interfaces
March 6, 2007
Page: 51 / 87
®