Holtek HT32F52243 User Manual page 3

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F52243/HT32F52253
Flash Vector Mapping Control Register - VMCR ........................................................................... 55
Flash Manufacturer and Device ID Register - MDID ...................................................................... 56
Flash Page Number Status Register - PNSR ................................................................................ 57
Flash Page Size Status Register - PSSR ...................................................................................... 58
Device ID Register - DIDR ............................................................................................................. 58
Flash Pre-fetch Control Register - CFCR ...................................................................................... 59
Custom ID Register n - CIDRn (n = 0 ~ 3) ..................................................................................... 60
5 Power Control Unit (PWRCU) .............................................................................. 61
Introduction .......................................................................................................................... 61
Features ............................................................................................................................... 62
Functional Descriptions ....................................................................................................... 62
V Power Domain .......................................................................................................................... 62
DD
1.5 V Power Domain ....................................................................................................................... 64
Operation Modes ............................................................................................................................ 64
Register Map ....................................................................................................................... 66
Register Descriptions ........................................................................................................... 67
Power Control Status Register - PWRSR ...................................................................................... 67
Power Control Register - PWRCR ................................................................................................. 68
V Power Domain Test Register - PWRTEST ............................................................................... 70
DD
Low Voltage / Brown Out Detect Control and Status Register - LVDCSR ..................................... 70
6 Clock Control Unit (CKCU) .................................................................................. 72
Introduction .......................................................................................................................... 72
Features ............................................................................................................................... 72
Function Descriptions .......................................................................................................... 74
High Speed External Crystal Oscillator - HSE ............................................................................... 74
High Speed Internal RC Oscillator - HSI ........................................................................................ 75
Auto Trimming of High Speed Internal RC Oscillator - HSI ............................................................ 75
Phase Locked Loop - PLL .............................................................................................................. 76
Low Speed External Crystal Oscillator - LSE ................................................................................. 78
Low Speed Internal RC Oscillator - LSI ......................................................................................... 78
Clock Ready Flag ........................................................................................................................... 78
System Clock (CK_SYS) Selection ................................................................................................ 79
HSE Clock Monitor ......................................................................................................................... 80
Clock Output Capability .................................................................................................................. 80
Register Map ....................................................................................................................... 81
Register Descriptions ........................................................................................................... 82
Global Clock Configuration Register - GCFGR .............................................................................. 82
Global Clock Control Register - GCCR .......................................................................................... 83
Global Clock Status Register - GCSR ........................................................................................... 84
Global Clock Interrupt Register - GCIR .......................................................................................... 85
PLL Configuration Register - PLLCFGR ........................................................................................ 86
PLL Control Register - PLLCR ....................................................................................................... 86
Rev. 1.20 3 of 501 September 19, 2018