ATM90E32AS-AU-R datasheet(25/84 Pages) ATMEL

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M90E32AS [DATASHEET]

Atmel-46003B-SE-M90E32AS-Datasheet_02122015

3.8.4

PARTIAL MEASUREMENT MODE (M MODE)

In this mode, all the measurements are through the same hardware that does the measurement in the normal mode. To

save power, the energy accumulation block and a portion of the DSP computation code will not be running in this mode.

In this mode, There are configuration bits in the PMPwrCtrl register to get lower power if the application allows:

•

Option to turn-off the three analog voltage channel if there is no need to measure voltage and power.

•

Option to lower down the digital clock from 16.384Mhz to 8.192MHz

In Partial Measurement mode, CRC checking will be disabled. The interrupts will not be generated.

Figure-13 Block Diagram in Partial Measurement mode

VDD18 Regulator

Temperature Sensor

Current Detector

ADC-V1

ADC-V2

ADC-V3

ADC-I1

ADC-I2

ADC-I3

SPI Interface

DSP

Energy Metering

(Forward/Reverse

Active/Reactive/CF Generator)

Measure and Monitoring

(V/I/rms / SAG / Phase /

Frequency)

Control Logic

Zero

Crossing

CF Out

Power On Reset

Crystal Oscillator

On-chip

Reference Voltage

Vref

I1P / I1N

V1P / V1N

SCLK

SDO

SDI

OSCI

OSCO

RESET

CF1

ZX0

I2P / I2N

I3P / I3N

V2P / V2N

V3P / V3N

CF2

CF3

CF4

ZX1

ZX2

Power Mode

Configuration

PM1

PM0

IRQ

WarnOut

IRQ0

IRQ1

Warn

Out

Flexible Piece-wise Non-linear

Compensation

Disabled

ATM90E32AS-AU-R Datasheet(PDF) 25 Page - ATMEL Corporation

ATM90E32AS-AU-R Datasheet(HTML) 25 Page - ATMEL Corporation

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