BA45F6746
CO/GAS Detector Flash MCU with LCD/LED Driver
I/O Port Control Registers...........................................................................................................71
I/O Port Source Current Selection...............................................................................................71
Pin-shared Functions ..................................................................................................................73
I/O Pin Structures........................................................................................................................79
Programming Considerations......................................................................................................79
Timer Modules – TM ...........................................................................................80
Introduction .................................................................................................................................80
TM Operation ..............................................................................................................................80
TM Clock Source.........................................................................................................................80
TM Interrupts...............................................................................................................................81
TM External Pins.........................................................................................................................81
Programming Considerations......................................................................................................82
Standard Type TM – STM ...................................................................................83
Standard TM Operation...............................................................................................................83
Standard Type TM Register Description .....................................................................................84
Standard Type TM Operation Modes..........................................................................................88
Periodic Type TM – PTM.....................................................................................98
Periodic TM Operation ...............................................................................................................98
Periodic Type TM Register Description ......................................................................................98
Periodic Type TM Operating Modes..........................................................................................104
Voltage Regulator – LDO.................................................................................. 116
CO/Gas Detector AFE....................................................................................... 117
CO/Gas Detector AFE Registers............................................................................................... 117
Input Offset Calibration .............................................................................................................120
CO/Gas Detector AFE Application Description .........................................................................120
Analog to Digital Converter ............................................................................121
A/D Converter Overview ...........................................................................................................121
Register Descriptions................................................................................................................122
A/D Converter Operation ..........................................................................................................126
A/D Converter Reference Voltage.............................................................................................127
A/D Converter Input Signals......................................................................................................128
Conversion Rate and Timing Diagram ......................................................................................128
Summary of A/D Conversion Steps...........................................................................................129
Programming Considerations....................................................................................................130
A/D Conversion Function ..........................................................................................................130
Temperature Measurement Function ........................................................................................131
A/D Conversion Programming Examples..................................................................................131
Universal Serial Interface Module – USIM ......................................................133
SPI Interface .............................................................................................................................133
I2C Interface ..............................................................................................................................141
UART Interface..........................................................................................................................150
LCD Driver.........................................................................................................166
LCD Display Data Memory........................................................................................................166
LCD Clock Source.....................................................................................................................167
Rev. 1.30
4
July 25, 2023