PNI RM3000 Sensor Suites - Manual (Page 2)

Table of Contents
1 COPYRIGHT & WARRANTY INFORMATION ............................................................ 4
2 INTRODUCTION .......................................................................................................... 5
3 SPECIFICATIONS ....................................................................................................... 6
3.1 GEOMAGNETIC SENSOR SUITE CHARACTERISTICS .............................. 6
3.2 SEN-XY AND SEN-Z CHARACTERISTICS .................................................... 7
3.3 3D MAGIC CHARACTERISTICS .................................................................... 8
3.4 TYPICAL SENSOR SUITE OPERATING PERFORMANCE .......................... 9
3.5 DIMENSIONS AND PACKAGING ................................................................. 13
3.5.1 Sen-XY Dimensions & Packaging .................................................... 13
3.5.2 Sen-Z Dimensions & Packaging ....................................................... 14
3.5.3 Sen-Z Shield Dimensions & Packaging ............................................ 16
3.5.4 3D MagIC Dimensions and Packaging ............................................. 17
3.6 SOLDERING ................................................................................................. 18
4 GEOMAGNETIC SENSOR SUITE OVERVIEW & SET-UP ...................................... 20
4.1 OVERVIEW ................................................................................................... 20
4.2 LAYOUT ........................................................................................................ 22
4.2.1 Sensor Orientation ............................................................................ 22
4.2.2 Local Magnetic Field Considerations ............................................... 22
4.2.3 Other Layout Considerations ............................................................ 23
4.3 3D MAGIC PIN-OUT ..................................................................................... 23
4.4 SPI TIMING REQUIREMENTS ..................................................................... 27
4.5 IDLE MODE ................................................................................................... 28
5 3D MAGIC OPERATION – STANDARD MODE ....................................................... 29
5.1 CYCLE COUNT REGISTERS ....................................................................... 29
5.2 SINGLE-AXIS MEASUREMENT (SAM) OPERATION ................................. 31
5.2.1 SAM SPI Activity Sequence ............................................................. 31
5.2.2 SAM Command Byte ........................................................................ 32
5.2.3 Making a Single-Axis Measurement ................................................. 32
5.3 MULTI-AXIS MEASUREMENT (MAM) OPERATION ................................... 33
5.3.1 MAM SPI Activity Sequence ............................................................. 33
5.3.2 MAM Command Byte ....................................................................... 33
5.3.3 MAM Axes Select Byte ..................................................................... 34
5.3.4 Making a Multi-Axis Measurement ................................................... 34
6 3D MAGIC OPERATION – LEGACY MODE ............................................................. 36
6.1 LEGACY OPERATION .................................................................................. 36
6.1.1 Legacy Operation SPI Activity Sequence......................................... 37
6.1.2 Legacy Command Byte .................................................................... 37
6.1.3 Making a Legacy Measurement ....................................................... 38
6.2 ENHANCED LEGACY OPERATION ............................................................ 39
6.2.1 Clock Divide Command Byte ............................................................ 40
6.2.2 Clock Divide Register ....................................................................... 40
6.2.3 Command Sequence for Setting Clock Divide Value ....................... 41
6.2.4 Changes to the Period Select Value ................................................ 41