新唐

M052 / M054BN数据表

目录

1

2

3

4

5

概述

································ ················ ··········6

·························································

特点

················ ················ ································ ······ 7

······································································

框图

················ ················ ················ ··············· 11

·······························································

选型表

································ ················ ··············12

·····························································

引脚配置

································ ················ ············13

···························································

5.1 QFN 33引脚

········································································ 13

················ ················ ································ ········

5.2 LQFP 48引脚

······································································· 14

················ ················ ································ ·······

5.3引脚说明

····································································· 15

················ ················ ································ ·····

6

功能说明

················ ································ ······19

·····················································

6.1基于ARMCortex -M0核心

····························································19

································ ················ ···········

6.2系统管理

··································································· 21

················ ················ ································ ···

6.2.1

概观

····································································21

················ ················ ································ ···

6.2.2

系统复位

······························································· 21

································ ················ ···············

6.2.3

系统电源架构

····················································22

················ ································ ···

6.2.4

整个系统内存映射

···················································23

················ ································ ··

6.2.5

整个系统的内存映射表

··········································25

················ ················ ·········

6.2.6

系统定时器（SysTick ）

·······················································25

················ ································ ······

6.2.7

嵌套向量中断控制器（ NVIC ）

····································· 27

································ ·····

6.3时钟控制器

···································································· 28

················ ················ ································ ····

6.3.1

概观

····································································28

················ ················ ································ ···

6.3.2

时钟发生器框图

················································28

················ ················ ···············

6.3.3

系统时钟&系统定时器时钟

·················································30

················ ································

6.3.4

AHB时钟源选择

····················································· 31

················ ································ ·····

6.3.5

外设时钟源选择

··············································· 32

················ ················ ···············

6.3.6

掉电模式（深度睡眠模式）时钟

····································33

································ ···

6.3.7

分频器输出

····················································· 33

················ ································ ·····

6.4通用I / O

································································ 35

································ ················ ················

6.4.1

概观

····································································35

················ ················ ································ ···

6.5 IC串行接口控制器（主/从）

··········································· 37

················ ················ ···········

6.5.1

概观

····································································37

················ ················ ································ ···

6.5.2

特点是什么？

··································································· 38

················ ················ ································ ····

6.6 PWM发生器和捕捉定时器

··················································· 39

················ ································ ···

6.6.1

概观

····································································39

················ ················ ································ ···

6.6.2

特点是什么？

··································································· 40

················ ················ ································ ····

6.7串行外设接口（SPI）

······················································ 41

················ ································ ······

6.7.1

概观

····································································41

················ ················ ································ ···

6.7.2

特点是什么？

··································································· 41

················ ················ ································ ····

6.8定时控制器

···································································· 42

················ ················ ································ ····

6.8.1

概观

····································································42

················ ················ ································ ···

-2-

出版日期： 2012年3月19日

修订版V1.01

2