欢迎访问ic37.com |
会员登录 免费注册
发布采购

EM78P809NP 参数 Datasheet PDF下载

EM78P809NP图片预览
型号: EM78P809NP
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器 [8-BIT Microcontroller]
分类和应用: 微控制器
文件页数/大小: 75 页 / 532 K
品牌: ELAN [ ELAN MICROELECTRONICS CORP ]
 浏览型号EM78P809NP的Datasheet PDF文件第23页浏览型号EM78P809NP的Datasheet PDF文件第24页浏览型号EM78P809NP的Datasheet PDF文件第25页浏览型号EM78P809NP的Datasheet PDF文件第26页浏览型号EM78P809NP的Datasheet PDF文件第28页浏览型号EM78P809NP的Datasheet PDF文件第29页浏览型号EM78P809NP的Datasheet PDF文件第30页浏览型号EM78P809NP的Datasheet PDF文件第31页  
EM78P809N  
8-Bit Microcontroller  
4.3 Special Purpose Registers  
A
(Accumulator)  
Internal data transfer, or instruction operand holding.  
It cannot be addressed.  
CONT (Control Register)  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
WDTO  
/INT  
WDTP1  
WDTP0  
WDTE  
PSR2  
PSR1  
PSR0  
CONT register is both readable and writable.  
Bit 7 ( WDTO ) : WDT output select  
WDTO = “0” : Interrupt request  
WDTO = “1” : Internal reset  
Bit 6 ( /INT ) : Interrupt enable flag  
/INT = “0” : masked by DISI or hardware interrupt  
/INT = “1” : enabled by ENI/RETI instructions  
Bit 5 ~ Bit 4 ( WDTP1 ~ WDTP0 ) : WDT prescaler bits.  
WDTP1  
WDTP0  
Operating Mode  
0
0
1
1
0
1
0
1
1:4  
1:16  
1:64  
1:256  
Bit 3 ( WDTE ) : WDT enable control.  
WDTE = “0” : Disable  
WDTE = “1” : Enable  
Bit 2 ( PSR2 ) ~ Bit 0 ( PSR0 ) : TCC prescaler bits.  
PSR2  
PSR1  
PSR0  
Operating Mode  
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
1:2  
1:4  
1:8  
1:16  
1:32  
1:64  
1:128  
1:256  
Product Specification (V1.0) 07.26.2005  
23  
(This specification is subject to change without further notice)  
 复制成功!