ATM90E32AS-AU-R datasheet(22/84 Pages) ATMEL

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M90E32AS [Datasheet]

Atmel-46003B-SE-M90E32AS-Datasheet_02122015

3.8.2

IDLE MODE (I MODE)

In Idle mode, all functions are shut off.

The analog blocks' power supply is powered but circuits are set into power-down mode, i.e, power supply applied but all

current paths are shut off. There is very low current since only very low device leakage could exist in this mode.

The digital I/Os' supply is powered.

In I/O and analog interface, the input signals from digital core (which is not powered) will be set to known state as described

in Table-3. The PM1 and PM0 pins which are controlled by external MCU are active and can configure the M90E32AS to

other modes.

Figure-11 Block Diagram in Idle Mode

Please note that since the digital I/O is not shut off, the I/O circuit is active in the Idle mode. The application shall make sure

that valid logic levels are applied to the I/O.

Table-3 lists digital I/O and power pins’ states in Idle mode. It lists the requirements for inputs and the output level for out-

put.

Table-3 Digital I/O and Power Pin States in Idle Mode

Name

I/O type

Type

Pin State in Idle Mode

Reset

LVTTL

Input level shall be VDD33.

ILVTTL

I/O set in input mode.

Input level shall be VDD33 or VSS.

SCLK

LVTTL

I/O set in input mode.

Input level shall be VDD33 or VSS.

SDO

LVTTL

I/O set in input mode.

Input level shall be VDD33 or VSS.

SDI

LVTTL

I/O set in input mode.

Input level shall be VDD33 or VSS.

PM1

PM0

ILVTTL

As defined in Table-2.

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) 22 Page - ATMEL Corporation

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