Motorola Mobility LLC T56KL1 Manual Do Utilizador

Enable the WKUPO_N signal to wake-up the application from low power by setting ATS100 
to value bigger then zero. ATS102 can be 0 but is 30ms by default for example ATS102=30 
will start WKUPO_N signal 30 millisecond before data send out from UART to Host.

Send data to the application over the serial interface.

Enable the serial interface's Ring Indicator (RI_N) signal.

While H24 is temporarily awake in Idle mode, data may be transmitted on the serial interface. In 
case data is being transmitted in any direction, H24 will not return to low power mode. This is 
regardless of the original wake-up reason or source. H24 will remain awake while data is 
transferred.

Only when the serial interface transfer is completed and the data has been processed, H24 will 
return to low power mode automatically, according to the ATS24 settings (see 

).

The H24 low power mode is enabled and disabled by the AT+MSLEEP command.

To permanently terminate the H24 low power mode, the +MSLEEP=0 command must be used. 
H24 will not return to low power mode until an AT+MSLEEP=1 commands is set again.

This command can be sent only when the serial interface is active.

In case the serial interface is disabled, Hardware Flow control is OFF and WKUP_I is not used,  it 
must first be activated before sending this command. To reactivate the serial interface, a 
temporary termination of the low power mode is required, by sending AT command that will 
catch by the RX line interrupt service routine and will use to wake up the module (The execution 
of the first command after exit Sleep Mode by RX interrupt is not guarantied.

Handled by suspend/resume mechanism.