Holtek HT32F52342 User Manual page 6

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F52342/HT32F52352
Register Descriptions ......................................................................................................... 178
EXTI Source Selection Register 0 - ESSR0 ................................................................................ 178
EXTI Source Selection Register 1 - ESSR1 ................................................................................ 179
GPIO x Configuration Low Register - GPxCFGLR, x = A, B, C, D ............................................... 180
GPIO x Configuration High Register - GPxCFGHR, x = A, B, C, D ............................................. 181
10 Nested Vectored Interrupt Controller (NVIC) .................................................. 182
Introduction ........................................................................................................................ 182
Features ............................................................................................................................. 183
Function Descriptions ........................................................................................................ 184
SysTick Calibration ....................................................................................................................... 184
Register Map ..................................................................................................................... 184
11 External Interrupt/Event Controller (EXTI) ...................................................... 185
Introduction ........................................................................................................................ 185
Features ............................................................................................................................. 185
Function Descriptions ........................................................................................................ 186
Wakeup Event Management......................................................................................................... 186
External Interrupt/Event Line Mapping ......................................................................................... 187
Interrupt and Debounce ................................................................................................................ 187
Register Map ..................................................................................................................... 188
Register Descriptions ......................................................................................................... 189
EXTI Interrupt Configuration Register n - EXTICFGRn, n = 0 ~ 15 ............................................. 189
EXTI Interrupt Control Register - EXTICR ................................................................................... 190
EXTI Interrupt Edge Flag Register - EXTIEDGEFLGR ................................................................ 191
EXTI Interrupt Edge Status Register - EXTIEDGESR ................................................................. 192
EXTI Interrupt Software Set Command Register - EXTISSCR .................................................... 193
EXTI Interrupt Wakeup Control Register - EXTIWAKUPCR ........................................................ 194
EXTI Interrupt Wakeup Polarity Register - EXTIWAKUPPOLR ................................................... 195
EXTI Interrupt Wakeup Flag Register - EXTIWAKUPFLG ........................................................... 196
12 Analog to Digital Converter (ADC) .................................................................. 197
Introduction ........................................................................................................................ 197
Features ............................................................................................................................. 198
Function Descriptions ........................................................................................................ 199
ADC Clock Setup .......................................................................................................................... 199
Channel Selection ......................................................................................................................... 199
Conversion Mode .......................................................................................................................... 199
Start Conversion on External Event .............................................................................................. 202
Sampling Time Setting .................................................................................................................. 203
Data Format .................................................................................................................................. 203
Analog Watchdog.......................................................................................................................... 203
Interrupts ....................................................................................................................................... 204
PDMA Request ............................................................................................................................ 204
Rev. 1.30 6 of 656 September 28, 2018