AS3911 datasheet(147/149 Pages) AMSCO

147 / 149 page

ams Datasheet, Confidential: 2013-Oct [2-03]

AS3911 – 147

Ref e r e nc e Guide

External field Detector

Peer Detection Threshold

Collision Avoidance Threshold

Power Supply System

VSP_RF Regulator

VSP_A and VSP_D Regulators

Power-down Support Block

Measurement of Supply Voltages

Communication to External Microcontroller

Serial Peripheral Interface (SPI)

Writing of Data to Addressable Registers (Write Mode)

Reading of Data from Addressable Registers (Read

Mode)

Loading Transmitting Data into FIFO

Reading Received Data from FIFO

Direct Command Mode

Direct Command Chaining

SPI Timing

Interrupt Interface

FIFO Water Level and FIFO Status Registers

Pin MCU_CLK

Direct Commands

Set Default

Clear

Transmit Commands

NFC Field ON Commands

Go to Normal NFC Mode

Analog Preset

Mask Receive Data and Unmask Receive Data

Measure Amplitude

Squelch

Reset Rx Gain

Adjust Regulators

Calibrate Modulation Depth

Calibrate Antenna

Measure Phase

Clear RSSI

Transparent Mode

Calibrate Capacitive Sensor

Measure Capacitance

Measure Power Supply

Start Timers

Registers

IO Configuration Register 1

IO Configuration Register 2

Operation Control Register

Mode Definition Register

Bit Rate Definition Register

ISO14443A and NFC 106kb/s Settings Register

ISO14443B Settings Register 1

ISO14443B and FeliCa Settings Register

Stream Mode Definition Register

Auxiliary Definition Register

Receiver Configuration Register 1

AS3911 Datasheet(PDF) 147 Page - ams AG

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