EM78P809N

8-BIT

微控制器

产品

规范

D

OC

. V

版为

1.0

ELAN MCCROELECTRONICS CORP 。

2005年7月

商标声明：

IBM是注册商标和PS / 2是IBM公司的一个注册商标。

Windows是微软公司的注册商标。

ELAN和ELAN标志

是义隆电子股份有限公司的商标。

版权

2005年义隆电子股份有限公司

版权所有

台湾印刷

本规范的内容如有更改，恕不另行通知。义隆电子假设

不承担任何责任有关的准确性，充分性，或本规范的完整性。义隆

微电子公司不承诺更新或保持当前包含的信息和材料

本说明书中。这些信息和材料可能会改变，以符合每个确认订单。

在任何情况下，义隆电子股份有限公司做出责任归咎于错误的任何索赔，遗漏或

包含在本规范中的信息或资料不准确等。义隆电子股份不得

对于因使用这些资料而引起的直接的，间接的，特别的偶然或必然的损失

或材料。

本说明书中描述的软件（如果有） ，都是依据授权或保密协议提供，

可以使用或只能按照该协议的条款复制。

义隆电子产品不得用于生命支持设备，装置或系统。利用

在这类应用中，义隆电子股份有限公司的产品不支持，是禁止的。

本规格书的任何部分均不得转载或传播任何形式或通过

ANY是指未经义隆电子的明确书面许可。

义隆电子股份有限公司

总部：

12号，创新路1号

新竹科学工业园区

台湾新竹30077

联系电话： +886 3 563-9977

传真： +886 3 563-9966

http://www.emc.com.tw

香港：

义隆电子（香港）微电子

集团有限公司

RM 。 1005B ， 10 /女帝国中心

么68号，尖沙咀

香港九龙

电话： +852 2723-3376

传真： +852 2723-7780

elanhk@emc.com.hk

深圳：

义隆电子股份有限公司

深圳有限公司

SSMEC大厦， 3楼，高新南大道

深圳市高新技术产业园区

深圳，广东，中国

电话： +86（755） 2601-0565

传真： +86（755） 2601-0500

美国：

Elan公司信息

科技集团

1821萨拉托加大道， 250套房

萨拉托加， CA 95070

美国

联系电话： +1 408 366-8223

传真： +1 408 366-8220

欧洲：

义隆电子股份有限公司。

（欧洲）

Siewerdtstrasse 105

8050瑞士苏黎世

电话： +41 43 299-4060

传真： +41 43 299-4079

http://www.elan-europe.com

上海：

义隆电子股份有限公司

上海总公司，有限公司

23 /栋。 ＃ 115巷572 ，碧波路

张江高科技园区

上海，中国

电话： +86 021 5080-3866

传真： +86 021 5080-4600

目录

目录

1一般Description····························································································1

2 Features···············································································································1

2.1

2.2

中央处理器

········································································································································1

Applications·····························································································································2

3针Assignment···································································································3

4针Description····································································································3

4功能说明

··························································································5

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

功能块Diagram·······································································································5

工作寄存器

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

特殊用途Registers····································································································23

CPU运行模式

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

AD转换器

························································································································29

时基定时器和如Keytone发电机

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

UART（通用异步Receiver/Transmitter)························································33

SPI （串行外设接口）

···························································································36

定时器/计数器2

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

4.10定时器/计数器3

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

4.11定时器/计数器4

····················································································································44

4.12 TCC / WDT & Prescaler··········································································································46

4.13 I / O Ports································································································································47

4.14 RESET和Wake-up············································································································47

4.15 Interrupt·································································································································54

4.16振荡器

·······························································································································55

4.17代码选项寄存器

···········································································································58

4.18电源的注意事项

·····································································································59

4.19指令集

·······················································································································61

产品规格（ V1.0 ） 2005年7月26日

iii

目录

5绝对最大额定值

·············································································63

5.1

5.2

绝对最大额定值

··································································································63

推荐工作Conditions···················································································63

6电气特性

·················································································64

6.1

6.2

6.3

DC电气特性

································································································64

AC电气特性

··································································································67

定时Diagram····················································································································68

APPENDIX···············································································································69

套餐类型：

······························································································································69

规范的修订历史记录

VERSION

0.9

1.0

初步

最初的版本

修订说明

日期

2004/03/04

2005/07/26

iv

产品规格（ V1.0 ） 2005年7月26日

EM78P809N

8位微控制器

1

概述

该EM78P809N是一个8位微处理器，低功耗，高速CMOS

技术和

高抗噪性。

它有一个内置的8K × 13位的电气一次性

可编程只读存储器（OTP -ROM）。它提供

多重保护位

to

防止用户OTP存储器代码的入侵。七选位也可

满足用户的要求。

上其OTP -ROM中的特征， EM78P809N能够提供一种方便的方式

开发和验证用户的程序。此外，用户可以利用

义隆烧录器能够轻松地编写自己的开发代码。

2

特点

2.1 CPU

工作电压： 2.5V 5.5V

工作温度范围： -40 ° C 85°C

工作频率范围（基于2个时钟）

晶振模式：为1MHz 8MHz的为4.5V ，为1MHz 4MHz的在2.5V

RC模式：为1MHz 4MHz时在2.5V

低功耗：

通常情况下0.8

A,

在睡眠模式

8K

×

13位片内ROM

多重安全位，以防止OTP存储器代码入侵

一个配置寄存器容纳用户的要求

144

×

8位片内寄存器（ SRAM ，通用寄存器）

4个双向I / O端口（ 22针）

高灌电流输出引脚： 14引脚

10个可编程上拉I / O引脚

10个可编程拉低I / O引脚

8级堆栈用于子程序嵌套

高性能MCU：每个指令周期两个时钟

15中断（外部： 4 ，内部： 11 ）

可编程自由运行看门狗定时器

1

产品规格（ V1.0 ） 2005年7月26日

（此规格如有变更，恕不另行通知）