HT32F2755 Просмотр технического описания (PDF) - Holtek Semiconductor

Номер в каталоге

Компоненты Описание

производитель

HT32F2755

Holtek 32-bit Microcontroller with ARM Cortex™-M3 Core

Holtek Semiconductor 

32-bit ARM Cortex™-M3 MCU

HT32F1755/HT32F1765/HT32F2755

Clock Structure

fCSIF_MCK,max = 24MHz

CSIF_MCK

( to CSIF clock output)

CK_MCK

CSIFMEN

Divider

÷2

8 MHz

HSI RC

HSIEN

PLLSRC

PLLEN

1

PLL

0

4-16 MHz

HSE XTAL

HSEEN

CK_HSI

CK_HSE

Prescaler

÷1 ~ 32

CSIFMPRE

CK_PLL

Prescaler

÷1, 2, 3

USBEN

f CK_PLL,max = 144MHz

CK_PLL

fCK_AHB,max = 72MHz

SW[1:0]

fCK_SYS,max = 144MHz

0x

CK_SYS

11

10

AHB

Prescaler

÷ 1,2,4,8

Prescaler

÷1, 2

URnEN

÷8

32.768 kHz CK_LSE

LSE OSC

LSEEN(Note1)

32 kHz CK_LSI

LSI RC

LSIEN(Note1)

CKOUTSRC[2:0]

000

001

010

CKOUT 011

100

101

110

Clock

Monitor

WDTSRC

1

CK_WDT

0

WDTEN

RTCSRC(Note1)

1

CK_RTC

0

RTCEN(Note1)

CK_MCK

CK_AHB/16

CK_SYS/16

CK_HSE/16

CK_HSI/16

CK_LSE

CK_LSI

CM3EN

(control by HW)

DMAEN

CSIFEN

CM3EN

FMCEN

CM3EN

SRAMEN

CM3EN

BMEN

CM3EN

APB0EN

Legend:

HSE = High Speed External clock

HSI = High Speed Internal clock

LSE = Low Speed External clock

LSI = Low Speed Internal clock

Note 1: Those control bits are located at RTC Control Register

(RTC_CTRL)

CM3EN

APB1EN

OPA0EN

WDTEN

ADC

Prescaler

÷ 1,2,4,6,8...

ADCEN

Figure 3. HT32F1755/1765/2755 Clock Structure

fCK_USB,max = 48MHz

CK_USB

fCK_USARTn,max = 72MHz

CK_USART0

CK_USART1

STCLK

(to SysTick)

FCLK

( free running clock)

HCLKC

( to CortexTM-M3)

HCLKD

( to DMA)

CK_CSIF

( to CSIF)

HCLKF

( to Flash)

HCLKS

( to SRAM)

HCLKBM

( to Bus Matrix)

HCLKAPB0

( to APB0 Bridge)

HCLKAPB1

( to APB1 Bridge)

PCLK

(OPA, AFIO,

GPIO Port,

ADC, SPI,

USART, I2C,

GPTM, MCTM,

BFTM, EXTI,

RTC, SCI,

Watchdog Timer)

CK_ADC

Rev. 1.00

20 of 45

August 13, 2012

Share Link: