Global Clock Status Register - Gcsr - Holtek HT32F50231 User Manual

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F50231/HT32F50241
Global Clock Status Register – GCSR
This register indicates the clock ready status.
Offset: 0x008
Reset value: 0x0000_0028
31
Type/Reset
23
Type/Reset
15
Type/Reset
7
Reserved
Type/Reset
Bits Field
[5] LSIRDY
[4] LSERDY
[3] HSIRDY
[2] HSERDY
Rev. 1.00
30 29 28
22 21 20
14 13 12
6 5 4
LSIRDY LSERDY
RO 1 RO
Descriptions
Internal Low Speed Clock Ready Flag
0: Internal 32 kHz RC oscillator clock is not ready
1: Internal 32 kHz RC oscillator clock is ready
Set by hardware to indicate that the LSI is stable to be used.
External Low Speed Clock Ready Flag
0: External 32.768 kHz RC oscillator clock is not ready
1: External 32.768 kHz RC oscillator clock is ready
Set by hardware to indicate that the LSE is stable to be used.
Internal High Speed Clock Ready Flag
0: Internal RC oscillator clock is not ready
1: Internal RC oscillator clock is ready
Set by hardware to indicate that the HSI is stable to be used.
External High Speed Clock Ready Flag
0: External crystal oscillator clock is not ready
1: External crystal oscillator clock is ready
Set by hardware to indicate that the HSE is stable to be used.
81 of 486
27 26
Reserved
19 18
Reserved
11 10
Reserved
3 2
HSIRDY HSERDY
0 RO 1 RO 0
25 24
17 16
9 8
1 0
Reserved
July 31, 2018