Turning The Module Off - Motorola C24 CDMA 1X Hardware Interface Manual

Applicant: Motorola, INC
FIGURE 4 – ON_N power-on timings
VCC
ON_N
CTS_N
RESET_N
2.3.1.2
This section applies only for the C-Lite standard model (without charger).
To turn on the module this signal must be set high. The IGN signal must remain high for the duration of
the module's operation. The module powers down when the IGN signal is returned to its low state.
The following figure illustrates the power-on process using the IGN signal.
FIGURE 5 – IGN power-on timings
VCC
IGN
CTS_N
RESET_N
A typical IGN implementation is shortening IGN to VCC. In this method applying power to the module,
shall also turn on the module simultaneously.
2.3.2

Turning the Module Off

There are several ways to turn the module off:
Asserting the ON_N signal low for a minimum of 1.5 seconds.
Setting the IGN signal low
Low power automatic shut down
AT command
200ms min
<5000ms
Turning on the module using IGN
<5000ms
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C24 Hardware Interface Manual
Version 0.3