HT32F52243 datasheet(21/44 Pages) HOLTEK

21 / 44 page

Rev. 1.00

�1 of 44

��to�e� �� 01�

��-Bit A�m® Co�tex®-M0+ MCU

HT��F5��4�/HT��F5��5�

Clock Structure

4-16 MHz

HSE XTAL

8 MHz

HSI RC

�� kHz

LSI RC

Legend:

HSE = High Speed Exte�nal �lo�k

HSI = High Speed Inte�nal �lo�k

LSE = Low Speed Exte�nal �lo�k

LSI = Low Speed Inte�nal �lo�k

��.�68 kHz

LSE �SC

WDTSRC

PLLSRC

AHB P�es�ale�

¸ 1��4�8�16��

FCLK

( f�ee �unning �lo�k)

STCLK

(to SysTi�k)

CK_ADC IP

CK_WDT

WDTEN

CK_REF

CK_HSI/16

CK_HSE/16

CK_SYS/16

CK�UT

CK�UTSRC[�:0]

HSEEN

HSIEN

LSEEN(Note1)

LSIEN(Note1)

fCK_SYS,max = 40 MHz

CK_LSI

CK_LSE

CK_AHB/16

CK_HSI

CK_HSE

PCLK (AFI�� ADC�

SPIx� USART� UARTx�

I�Cx� MCTM� GPTM�

SCTMx� BFTMx� EXTI�

WDT� RTC)

PLL

Clo�k

Monito�

PLLEN

CK_LSE

CK_PLL

ADCEN

CK_LSI

HCLKS

( to SRAM)

HCLKF

( to Flash)

CM0PEN

FMCEN

CM0PEN

SRAMEN

RTCSRC(Note1)

CK_RTC

RTCEN(Note1)

000

001

010

011

100

101

110

CK_SYS

SW[�:0]

¸8

HCLKC

( to Co�texTM-M0+)

CM0PEN

(�ont�ol �y HW)

P�es�ale�

¸1 ~ ��

CK_REF

Divide�

¸�

CKREFPR

HCLKBM

( to Bus Mat�ix)

CM0PEN

BMEN

HCLKAPB

( to APB B�idge)

CM0PEN

APBEN

CK_CRC

( to CRC)

CRCEN

Pe�iphe�als

Clo�k

P�es�ale�

¸ 1��4�8

ADC

P�es�ale�

¸ 1��4�8�...

PCLK

PCLK/�

PCLK/4

PCLK/8

SPIEN

SCIEN

CK_GPI�

( to GPI� po�t)

GPI�DEN

GPI�AEN

CKREFEN

HSI Auto

T�imming

Cont�olle�

CK_LSE

CKIN

00x

011

010

111

110

CK_DIV

( to DIV)

DIVEN

HCLKD

( to PDMA)

DMAEN

Figure 3. Clock Structure

HT32F52243 датащи(PDF) 21 Page - Holtek Semiconductor Inc

HT32F52243 датащи(HTML) 21 Page - Holtek Semiconductor Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

датащи скачать

ссылки URL