BC66F2332-1
Sub-1GHz Low-IF OOK RF Receiver Flash MCU
Look-up Table Registers – TBLP, TBLH......................................................................................24
Status Register – STATUS..........................................................................................................25
EEPROM Data Memory.......................................................................................26
EEPROM Data Memory Structure ..............................................................................................26
EEPROM Registers ....................................................................................................................26
Reading Data from the EEPROM ..............................................................................................28
Writing Data to the EEPROM......................................................................................................28
Write Protection...........................................................................................................................28
EEPROM Interrupt ......................................................................................................................28
Programming Considerations......................................................................................................29
Oscillators ...........................................................................................................30
Oscillator Overview .....................................................................................................................30
System Clock Configurations......................................................................................................30
Internal RC Oscillator – HIRC .....................................................................................................31
Internal 32kHz Oscillator – LIRC.................................................................................................31
Supplementary Oscillator............................................................................................................31
Operating Modes and System Clocks ..............................................................31
System Clocks ............................................................................................................................31
System Operation Modes............................................................................................................32
Control Register ..........................................................................................................................33
Operating Mode Switching .........................................................................................................35
Standby Current Considerations.................................................................................................38
Wake-up......................................................................................................................................39
Watchdog Timer..................................................................................................39
Watchdog Timer Clock Source....................................................................................................39
Watchdog Timer Control Register...............................................................................................39
Watchdog Timer Operation .........................................................................................................41
Reset and Initialisation.......................................................................................42
Reset Functions ..........................................................................................................................42
Reset Initial Conditions ...............................................................................................................45
Input/Output Ports..............................................................................................47
Pull-high Resistors ......................................................................................................................47
Port A Wake-up ...........................................................................................................................48
I/O Port Control Registers...........................................................................................................48
Pin-Shared Functions..................................................................................................................48
I/O Pin Structures........................................................................................................................50
Programming Considerations......................................................................................................50
Timer Modules – TM ...........................................................................................51
Introduction .................................................................................................................................51
TM Operation ..............................................................................................................................51
TM Clock Source.........................................................................................................................51
TM Interrupts...............................................................................................................................51
TM External Pins.........................................................................................................................52
Rev. 1.10
3
June 16, 2023
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