STLUX385ATR datasheet(28/126 Pages) STMICROELECTRONICS

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Product overview

STLUX

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DocID027870 Rev 1



Status flags:

–

Transmitter/receiver mode flag

–

End of byte transmission flag

–I2C busy flag



Error flags:

–

Arbitration lost condition for master mode

–

Acknowledgment failure after address/ data transmission

–

Detection of misplaced start or stop condition

–

Overrun/underrun if clock stretching is disabled



Interrupt sources:

–

Communication interrupt

–

Error condition interrupt

–

Wakeup from Halt interrupt



Wakeup capability:

–

MCU wakes up from low power mode on address detection in slave mode.

5.8

Analog-to-digital converter (ADC)

The STLUX family includes a 10-bit successive approximation ADC with 8 multiplexed input

channels. The analog input signal can be amplified before conversion by a selectable gain

of 1 or 4(a) times. The analog-to-digital converter can operate either in single or in

continuous/circular modes. The ADC unit has the following main features:



8/6 ADC input channel(b)



10-bit resolution



Single and continuous conversion mode



Independent or fixed channel gain value x1 or x4 to extend dynamic range and

resolution to 12-bit equivalent(a)



Interrupt events:

–

EOC interrupt asserted on end of conversion cycle

–

EOS interrupt asserted on end of conversion sequences

–

SEQ_FULL_EN interrupt assert on sequencer buffer full



ADC input voltage range dependent on selected gain value(b)



Selectable conversion data alignment



Individual registers for up to 8 successive conversions.

a. The gain x4 is available only on the STLUX385A.

b. The number of ADC input channels depends of the STLUX device part number.

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