Holtek HT32F52220 User Manual page 3

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F52220/HT32F52230
Flash Vector Mapping Control Register - VMCR .......................................................................... 50
Flash Manufacturer and Device ID Register - MDID ..................................................................... 51
Flash Page Number Status Register - PNSR ............................................................................... 52
Flash Page Size Status Register - PSSR ..................................................................................... 53
Device ID Register - DID ............................................................................................................... 54
Flash Pre-fetch Control Register - CFCR ..................................................................................... 55
Custom ID Register n - CIDRn ( n = 0 ~3) ..................................................................................... 56
5 Power Control Unit (PWRCU) .............................................................................. 57
Introduction .......................................................................................................................... 57
Features ............................................................................................................................... 58
Functional Descriptions ....................................................................................................... 58
V Power Domain .......................................................................................................................... 58
DD
1.5 V Power Domain ....................................................................................................................... 60
Operation Modes ............................................................................................................................ 60
Register Map ....................................................................................................................... 62
Register Descriptions ........................................................................................................... 63
Power Control Status Register - PWRSR ...................................................................................... 63
Power Control Register - PWRCR ................................................................................................. 64
V Power Domain Test Register - PWRTEST ............................................................................... 66
DD
Low Voltage / Brown Out Detect Control and Status Register - LVDCSR ..................................... 67
6 Clock Control Unit (CKCU) .................................................................................. 69
Introduction .......................................................................................................................... 69
Features ............................................................................................................................... 71
Function Descriptions .......................................................................................................... 71
High Speed External Crystal Oscillator - HSE ............................................................................... 71
High Speed Internal RC Oscillator - HSI ........................................................................................ 72
Phase Locked Loop - PLL .............................................................................................................. 73
Low Speed Internal RC Oscillator - LSI ......................................................................................... 74
Clock Ready Flag ........................................................................................................................... 74
System Clock (CK_SYS) Selection ................................................................................................ 75
HSE Clock Monitor ......................................................................................................................... 76
Clock Output Capability .................................................................................................................. 76
Register Map ....................................................................................................................... 77
Register Descriptions ........................................................................................................... 78
Global Clock Configuration Register - GCFGR .............................................................................. 78
Global Clock Control Register - GCCR .......................................................................................... 80
Global Clock Status Register - GCSR ........................................................................................... 82
Global Clock Interrupt Register - GCIR .......................................................................................... 83
PLL Configuration Register - PLLCFGR ........................................................................................ 84
PLL Control Register - PLLCR ....................................................................................................... 84
AHB Configuration Register - AHBCFGR ...................................................................................... 85
AHB Clock Control Register - AHBCCR ........................................................................................ 86
Rev. 1.10 3 of 366 November 09, 2018