Wavecom GS64 Spécifications télécharger pdf (Page 76)

Product Technical Specification & Customer Design Guidelines

Interfaces

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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without

prior written agreement.

WA_DEV_Q64_PTS_001-003 January 9, 2009

Figure 29: ON/OFF circuitry inside Q64

3.14.3

Application

Figure 30: Example of ON/OFF pin connection

3.14.3.1

Power-ON

Whatever the Q64 has embedded GR plug-in or not, once the Wireless CPU

powered, the application must set the ON/OFF signal to low to start the Wireless

CPU

power-ON sequence. The ON/OFF signal must be held low during a minimum

delay of T

on/off-hold

(Minimum hold delay on the ON/OFF signal) to power-ON. After this

delay, an internal mechanism maintains the Q64 in power-ON condition.

During the power-ON sequence, an internal reset is automatically performed by the

Wireless CPU

for 40ms (typically). During this phase, any external reset should be

avoided.

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Wavecom GS64 Spécifications Page 76