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PIC16F627-04I/SO 参数 Datasheet PDF下载

PIC16F627-04I/SO图片预览
型号: PIC16F627-04I/SO
PDF下载: 下载PDF文件 查看货源
内容描述: 基于闪存的8位CMOS微控制器 [FLASH-Based 8-Bit CMOS Microcontrollers]
分类和应用: 闪存微控制器和处理器外围集成电路光电二极管PC时钟
文件页数/大小: 160 页 / 1657 K
品牌: MICROCHIP [ MICROCHIP ]
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PIC16F62X  
4.2.2.6  
PCON REGISTER  
The PCON register contains flag bits to differentiate  
between a Power-on Reset, an external MCLR reset,  
WDT reset or a Brown-out Detect.  
Note: BOD is unknown on Power-on Reset. It  
must then be set by the user and checked  
on subsequent resets to see if BOD is  
cleared, indicating  
a
brown-out has  
occurred. The BOD status bit is a "don’t  
care" and is not necessarily predictable if  
the brown-out circuit is disabled (by  
programming  
BOREN  
bit  
in  
the  
Configuration word).  
REGISTER 4-6: PCON REGISTER (ADDRESS 8Eh)  
U-0  
U-0  
U-0  
U-0  
R/W-1  
U-0  
R/W-q  
R/W-q  
BOD  
bit0  
OSCF  
POR  
R = Readable bit  
W = Writable bit  
bit7  
U = Unimplemented bit, read  
as ’0’  
-n = Value at POR reset  
bit 7-4,2:Unimplemented: Read as '0'  
bit 3:  
bit 1:  
bit 0:  
OSCF: INTRC/ER oscillator speed  
1= 4 MHz typical(1)  
0= 37 KHz typical  
POR: Power-on Reset Status bit  
1= No Power-on Reset occurred  
0= A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)  
BOD: Brown-out Detect Status bit  
1= No Brown-out Reset occurred  
0= A Brown-out Reset occurred (must be set in software after a Brown-out Reset occurs)  
Note 1: When in ER oscillator mode, setting OSCF = 1 will cause the oscillator speed to change to the speed  
specified by the external resistor.  
DS40300B-page 24  
Preliminary  
1999 Microchip Technology Inc.