【8位闪存微控制器与运算放大器&比较HT45F23/HT45F43修订： 1.20日期： 20】,IC型号HT45F43,HT45F43 PDF资料,HT45F43经销商,ic,电子元器件-51电子网

8位闪存微控制器与运算放大器&比较

HT45F23/HT45F43

修订： 1.20

日期： 2011年9月15日

功能................................................. .............................................. 7

CPU特性........................................................................................................7

外设特性................................................ ................................................ 7

概述................................................ ............................ 8

框图................................................ ..................................... 9

引脚分配................................................ ................................... 9

引脚说明................................................ .................................. 10

绝对最大额定值............................................... .............. 12

直流特性................................................ .......................... 13

AC特征................................................ .......................... 16

OP放大器电气特性........................................... 17

比较器电气特性............................................ 18

LDO 2.4V ............................................... ............................................. 18

LDO 3.3V ............................................... ............................................. 18

上电复位特性............................................. ......... 19

系统架构................................................ ......................... 20

时序和流水线............................................... ......................................... 20

节目Counter..................................................................................................21

堆....................................................................................................................21

算术逻辑单元

ALU ................................................. .......................... 22

闪存程序存储器............................................... ......................................... 22

Structure...............................................................................................................22

特Vectors.....................................................................................................22

查找Table.......................................................................................................24

表程序示例............................................... ........................................ 25

在电路编程............................................... ..................... 26

RAM数据存储器............................................... .............................. 27

Structure...............................................................................................................27

特殊功能寄存器............................................... .................................... 28

间接寻址寄存器

IAR0 ， IAR1 ............................................... .......... 28

内存指针

MP0 ， MP1 ............................................... ............................... 29

银行指针

BP ................................................. ............................................... 30

累加器

ACC ................................................. ............................................. 30

修订版1.20

2011年9月15日

程序计数器低字节寄存器

PCL..................................................................30

查表寄存器

TBLP ， TBLH ............................................... ................. 30

状态寄存器

状态................................................. .................................. 31

EEPROM数据存储器............................................... ...................... 32

EEPROM数据存储器结构.............................................. .......................... 32

EEPROM Registers..............................................................................................32

从EEPROM中读取数据............................................. ............................ 33

写数据到EEPROM ............................................. .................................. 33

写保护....................................................................................................34

EEPROM中断................................................ ............................................... 34

编程注意事项................................................ ............................... 34

编程实例................................................ ....................................... 34

Oscillator............................................................................................35

振荡器Overview...............................................................................................35

系统时钟配置............................................... ................................. 35

外部晶体/陶瓷振荡器

HXT ................................................. ......... 36

外部RC振荡器

ERC ................................................. .............................. 37

外部振荡器

EC........................................................................................37

内部RC振荡器

HIRC ................................................. .............................. 37

外部32.768kHz晶体振荡器

LXT ................................................. ....... 37

LXT低功耗功能............................................. ......................... 38

内部32kHz振荡器

LIRC...........................................................................39

辅助振荡器................................................ .................................... 39

运行模式和系统时钟............................................. 39

系统Clocks......................................................................................................39

系统操作模式............................................... ...................................... 40

控制寄存器...................................................................................................42

快速唤醒.......................................................................................................43

工作模式切换和唤醒........................................... ................... 44

正常模式切换到低速模式............................................ ............... 45

低速模式转换到正常模式切换............................................ ............... 46

在进入休眠模式0 .............................................. .................................... 46

在进入休眠模式1 .............................................. .................................... 47

进入空闲模式0 .............................................. ....................................... 47

进入空闲模式1 .............................................. ....................................... 47

静态电流注意事项............................................... ............................ 48

Wake-up...............................................................................................................48

编程注意事项................................................ ............................... 49

看门狗定时器................................................ ................................ 49

看门狗定时器时钟源.............................................. ............................... 49

看门狗定时器控制寄存器.............................................. ........................... 50

看门狗定时器操作............................................... .................................... 50

修订版1.20

2011年9月15日

复位和初始化............................................... ...................... 52

复位功能...................................................................................................52

复位初始条件............................................... .......................................... 54

输入/输出端口.............................................. ............................... 57

拉Resistors................................................................................................57

PA口唤醒....................................................................................................58

I / O端口控制寄存器............................................ ......................................... 58

端口B NMOS开漏控制寄存器........................................... ............... 59

I / O引脚结构............................................. .................................................. ..59

编程注意事项................................................ ............................... 60

定时/计数器.............................................. ......................... 61

配置定时/计数器输入时钟源..................................... 61

定时寄存器

TMR0 ， TMR1L ， TMR1H ............................................. .............. 61

定时器控制寄存器

TMR0C ， TMR1C ............................................... ........... 63

配置定时器模式.............................................. ................................... 63

配置事件计数器模式............................................. ....................... 64

配置脉冲宽度测量模式............................................ ..... 64

可编程分频器

PFD ................................................. ............ 65

预分频器..............................................................................................................66

I / O Interfacing.......................................................................................................68

定时/计数器引脚内部过滤器........................................... .................... 68

编程注意事项................................................ ............................... 68

定时程序示例............................................... ........................................ 69

脉宽调制器............................................... ...................... 70

PWM Operation....................................................................................................70

6 + 2 PWM模式...................................................................................................71

7 + 1 PWM模式...................................................................................................72

PWM输出控制............................................... ............................................. 73

模拟到数字转换.............................................. ................ 74

A / D概述.......................................................................................................74

A / D转换器寄存器说明............................................ .......................... 74

A / D转换器数据寄存器

ADRL ， ADRH ............................................... ...... 75

A / D转换器控制寄存器

ADCR ，钢芯铝绞线， ADPCR .................................. 75

A / D Operation.......................................................................................................77

A / D输入引脚......................................................................................................78

A / D转换步骤摘要........................................... ........................... 79

编程注意事项................................................ ............................... 79

A / D转换Function...........................................................................................80

A / D编程实例............................................. ..................................... 81

串行接口模块

SIM...........................................................82

SPI Interface.........................................................................................................82

SPI寄存器.......................................................................................................83

修订版1.20

2011年9月15日

SPI Communication..............................................................................................86

C接口.........................................................................................................88

C总线Communication........................................................................................92

C总线启动Signal..............................................................................................92

从机地址......................................................................................................93

C总线读/写信号............................................ ........................................ 93

C总线从机地址确认信号............................................ ............. 93

C总线数据和确认信号............................................ ..................... 93

外围时钟输出............................................... .................... 95

外围时钟操作............................................... .................................... 95

SCOM功能的LCD .............................................. ..................... 96

LCD操作.....................................................................................................96

LCD偏置Control..................................................................................................97

LDO功能.......................................................................................................98

运算放大器................................................ ...................... 99

运算放大器寄存器............................................... ............................. 99

运算放大器工作............................................... ........................... 102

运算放大器的功能............................................... ........................... 103

比较................................................. ................................... 107

比较器的操作................................................ ........................................ 107

比较寄存器................................................ ........................................ 107

比较器功能................................................ ........................................ 110

Interrupts..........................................................................................114

中断寄存器................................................ .............................................. 114

中断Operation..............................................................................................114

中断优先级..................................................................................................115

外部中断................................................ ................................................ 117

外部设备中断............................................... ................................ 119

定时/计数器中断............................................. ................................ 119

SPI / I

C接口中断............................................... .................................... 120

多功能中断.............................................. .......................................... 120

A / D中断.......................................................................................................120

时基中断............................................... ............................................. 121

外部设备中断............................................... ................................ 122

比较器中断................................................ .......................................... 122

EEPROM中断................................................ ............................................. 122

LVD中断......................................................................................................122

中断唤醒功能............................................. ................................... 123

编程注意事项................................................ ............................. 123

Buzzer...............................................................................................123

掉电模式和唤醒........................................... ........ 126

在进入空闲或休眠模式............................................ ......................... 126

修订版1.20

2011年9月15日