Specifications

Product Technical Specification & Customer Design Guidelines

Interfaces

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WA_DEV_Q64_PTS_001-003 January 9, 2009

Once the "OK" response is issued by the Wireless CPU

, the power supply can be

switched off.

If GR plug-in is used, a level transition from high level to low level can be acted as a

command to de-register from the network and enable the power-OFF sequence. And

then the application must set the ON/OFF signal to high level in order to power-OFF

the Q64 Wireless CPU

correctly.

Figure 32: Power-OFF sequence without GR plug-in in Q64

POWER SUPPLY

ON/OFF

AT COMMAND

STATE OF THE

Wireless CPU

AT+CPOF

Wireless CPU

READY

Wireless CPU

OFF

BB+RF

<22ŸÐ

Network dependent

OK response

Figure 33: Power-OFF sequence with GR plug-in in Q64

Note:

• If the ON/OFF pin is maintained to ON (Low Level), then the Wireless CPU

cannot be switched OFF.