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PNI RM3100 User Manual

PNI RM3100
41 pages
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User Manual
RM3100 & RM2100
Geomagnetic Sensor

Table of Contents

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PNI RM3100 Specifications

General IconGeneral
BrandPNI
ModelRM3100
CategoryMotherboard
LanguageEnglish

Summary

Specifications

Geomagnetic Sensor Characteristics

Presents performance specifications for the geomagnetic sensor, including measurement range, gain, sensitivity, and noise.

Sen-XY-f and Sen-Z-f Characteristics

Details absolute maximum ratings and characteristics for Sen-XY-f and Sen-Z-f sensor coils, covering parameters like inductance and resistance.

MagI2C Characteristics

Defines absolute maximum ratings and recommended operating conditions for the MagI2C ASIC, including voltage, current, and temperature.

Geomagnetic Sensor Overview & Set-Up

SPI Timing Requirements

Specifies the timing parameters for SPI communication, including valid data setup, hold times, and clock polarity configurations.

I²C Requirements

Outlines the I2C interface requirements, including slave addressing and supported communication modes like standard, fast, and high speed.

MagI2C Operation

Set the Cycle Count Registers

Explains how to set the Cycle Count Registers (0x04-0x09) to configure sensor oscillation cycles for gain and resolution.

Initiate Continuous Measurement Mode

Describes how to initiate Continuous Measurement Mode (CMM) using the CMM register (0x01) and its bits for axis selection and DRDY.

Setting CMM Update Rate with TMRC

Details how to set the Continuous Measurement Mode update rate using the TMRC register (0x0B), referencing available data rates.

Initiate a Single Measurement

Explains how to initiate a single measurement using the POLL register (0x00), specifying which axes to measure.

Confirm New Data Ready

Discusses methods to determine if measurement data is ready, including monitoring the DRDY line, MISO pin, or reading the STATUS register.

Read the Measurement Results

Explains how to read the 3-byte measurement results from the Results Registers for each axis, stored in 2's complement format.