9150-0125-01 R-1
I
TABLE OF CONTENTS
LIST OF FIGURES .................................................................................................................... VI
1. INTRODUCTION ................................................................................................................... 1
2.1. THEORY OF OPERATION FOR GLOBALSTAR COMMERCIAL IOT .....................................................................5
2.2 QUICK START/CONFIGURATION GUIDELINES ...............................................................................................6
2.3 BLOCK DIAGRAM ........................................................................................................................................6
2.4 CORE COMPONENTS ..................................................................................................................................7
4.2.1 GPIO ..............................................................................................................................................10
4.2.2 Comparator .....................................................................................................................................11
4.2.3 PDM - Pulse Density modulation interface ..........................................................................................11
4.2.4 PPI - Programmable Peripheral Interconnect ......................................................................................12
4.2.5 PWM - Pulse Width Modulation .........................................................................................................12
4.2.6 QDEC - Quadrature Decoder ..............................................................................................................12
4.2.7 RTC - Real Time Counter ..................................................................................................................13
4.2.8 SPI - Serial Peripheral Interface ........................................................................................................13
4.2.9 UART - Universal asynchronous receiver / transmitter ..........................................................................14
5.1 PIN ASSIGNMENTS .................................................................................................................................18
5.2 REFERENCE CIRCUITRY ............................................................................................................................21