HC89F0332 datasheet(2/161 Pages) HOLYCHIP

2 / 161 page

HC89F0332/0322/0312

产品简介................................................................................................................................................................6

1.1

功能特性 .......................................................................................................................................................6

1.2

应用注意 .......................................................................................................................................................8

1.3

系统框图 .......................................................................................................................................................9

1.4

引脚配置 .....................................................................................................................................................10

1.5

引脚描述 ..................................................................................................................................................... 11

1.6

外设功能引脚全映射模块

PTM ................................................................................................................16

CPU .....................................................................................................................................................................17

2.1

CPU 特性 ....................................................................................................................................................17

2.2

CPU 相关寄存器.........................................................................................................................................17

存储器..................................................................................................................................................................19

3.1

程序存储器（

FLASH）.............................................................................................................................19

3.2

数据存储器（

RAM） ................................................................................................................................27

3.3

特殊功能寄存器（

SFR） ..........................................................................................................................28

系统时钟..............................................................................................................................................................32

4.1

系统时钟特性 .............................................................................................................................................32

4.2

内部时钟 .....................................................................................................................................................33

4.3

外部时钟 .....................................................................................................................................................33

4.4

系统时钟相关寄存器 .................................................................................................................................34

电源管理..............................................................................................................................................................39

5.1

电源管理特性 .............................................................................................................................................39

5.2

空闲模式 .....................................................................................................................................................39

5.3

掉电模式 .....................................................................................................................................................39

5.4

电源管理相关寄存器 .................................................................................................................................40

复位......................................................................................................................................................................41

6.1

复位特性 .....................................................................................................................................................41

6.2

POR（POWER-ON RESET）复位.................................................................................................................41

6.3

BOR（BROWN-OUT RESET）复位 .............................................................................................................41

6.4

外部

RST 复位............................................................................................................................................41

6.5

外部端口低压检测复位 .............................................................................................................................42

6.6

软件复位 .....................................................................................................................................................42

6.7

看门狗（

WDT）复位 ................................................................................................................................42

6.8

堆栈溢出复位 .............................................................................................................................................42

6.9

复位相关寄存器 .........................................................................................................................................43

通用及复用

I/O...................................................................................................................................................46

7.1

通用及复用

I/O 特性..................................................................................................................................46

7.2

I/O 模式.......................................................................................................................................................46

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