WTS701MFSLASHT datasheet(42/77 Pages) WINBOND

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WTS701

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RESET

The WTS701 processor is initialized to the RESET state when Vcc is first applied to the part.

After a reset condition the device enters the POWER DOWN state. All configuration registers are

initialized to their default values after issuing the PWUP command.

Once the WTS701 is active and a hardware reset is applied on the RESET pin, the WTS701 will be in

IDLE state, and all configuration registers will return to their default values.

POWER DOWN

In this state, the power consumption of the WTS701 is minimal. All analog outputs are tristate, the

crystal interface is deactivated and the microcontroller is stopped. The only commands valid in the

Power Down mode are PWUP, SCLC and RDST. All configuration registers will return to their default

values after issuing the PWUP command.

IDLE

The idle state is first entered with the PWUP command. In this state, the micro-controller is running

and the device is ready to respond to further commands. From the IDLE state, the device can go to

the active CONVERT state or the POWER DOWN state.

CONVERT

This state is initiated by the CONV command. The text located in the internal buffer is converted into

speech and played back to the analog or digital interface according to the state of the configuration

registers. Once the active conversion has finished, the device enters the WAIT state.

WAIT

Once a conversion has finished, the device enters the WAIT state. In this state, audio outputs are still

active. To deactivate, audio outputs and return to the IDLE state an IDLE command is issued.

WTS701MF/T Datasheet(PDF) 42 Page - Winbond