M031/M032
TABLE OF CONTENTS
1 GENERAL DESCRIPTION ............................................................................11
2 FEATURES....................................................................................................12
2.1 M031/M032 Features.................................................................................................. 12
3 PARTS INFORMATION.................................................................................22
3.1 Summary....................................................................................................................... 22
3.2 Package Type .............................................................................................................. 22
3.3 M031/M032 Series Selection Guide......................................................................... 23
3.3.1 M031 Control Series ......................................................................................................23
3.3.2 M032 USB Series...........................................................................................................23
3.3.3 M031/M032 Selection Code .........................................................................................24
4 PIN CONFIGURATION ..................................................................................25
4.1 Pin Configuration......................................................................................................... 25
4.1.1 M031 Series Pin Diagram .............................................................................................25
4.1.2 M031 Series Function Pin Diagram.............................................................................30
4.1.3 M032 Series Pin Diagram .............................................................................................41
4.1.4 M032 Series Function Pin Diagram.............................................................................43
4.2 Pin Description............................................................................................................. 45
4.2.1 M031/M032 Series Pin Description .............................................................................45
4.2.2 M031/M032 Series Multi-function Summary Table....................................................56
4.2.3 M031/M032 Series Multi-function Summary Table Sorted by GPIO.......................64
5 BLOCK DIAGRAM.........................................................................................74
5.1 M031/M032 Block Diagram........................................................................................ 74
6 FUNCTIONAL DESCRIPTION.......................................................................75
6.1 Arm® Cortex®-M0 Core............................................................................................... 75
6.2 System Manager ......................................................................................................... 77
6.2.1 Overview..........................................................................................................................77
6.2.2 System Reset..................................................................................................................77
6.2.3 System Power Distribution............................................................................................83
6.2.4 Power Modes and Wake-up Sources..........................................................................83
6.2.5 System Memory Map.....................................................................................................87
6.2.6 SRAM Memory Orginization .........................................................................................89
6.2.7 Chip Bus Matrix ..............................................................................................................90
6.2.8 IRC Auto Trim..................................................................................................................90
6.2.9 Register Lock Control ....................................................................................................91
6.2.10UART0_TXD/USCI0_DAT0 modulation with PWM...................................................96
6.2.11Register Map...................................................................................................................97
6.2.12Register Description.......................................................................................................98
Feb 25, 2019
Page 2 of 274
Rev. 1.01
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