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PIC18F2320-I/SP 参数 Datasheet PDF下载

PIC18F2320-I/SP图片预览
型号: PIC18F2320-I/SP
PDF下载: 下载PDF文件 查看货源
内容描述: 28 /40/ 44引脚高性能,增强型闪存微控制器与10位A / D和纳瓦技术 [28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology]
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: 388 页 / 6899 K
品牌: MICROCHIP [ MICROCHIP ]
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PIC18F2220/2320/4220/4320  
5.14 RCON Register  
Note 1: If the BOREN configuration bit is set  
(Brown-out Reset enabled), the BOR bit  
The Reset Control (RCON) register contains flag bits  
that allow differentiation between the sources of a  
device Reset. These flags include the TO, PD, POR,  
BOR and RI bits. This register is readable and writable.  
is ‘1’ on a Power-on Reset. After a Brown-  
out Reset has occurred, the BOR bit will  
be cleared and must be set by firmware to  
indicate the occurrence of the next  
Brown-out Reset.  
2: It is recommended that the POR bit be set  
after  
a Power-on Reset has been  
detected so that subsequent Power-on  
Resets may be detected.  
REGISTER 5-3:  
RCON REGISTER  
R/W-0  
IPEN  
U-0  
U-0  
R/W-1  
RI  
R-1  
TO  
R-1  
PD  
R/W-0  
POR  
R/W-0  
BOR  
bit 7  
bit 0  
bit 7  
IPEN: Interrupt Priority Enable bit  
1= Enable priority levels on interrupts  
0= Disable priority levels on interrupts (PIC16CXXX Compatibility mode)  
bit 6-5 Unimplemented: Read as ‘0’  
bit 4  
RI: RESETInstruction Flag bit  
1= The RESETinstruction was not executed (set by firmware only)  
0= The RESETinstruction was executed causing a device Reset (must be set in software after  
a Brown-out Reset occurs)  
bit 3  
bit 2  
bit 1  
bit 0  
TO: Watchdog Time-out Flag bit  
1= Set by power-up, CLRWDTinstruction or SLEEPinstruction  
0= A WDT time-out occurred  
PD: Power-down Detection Flag bit  
1= Set by power-up or by the CLRWDTinstruction  
0= Cleared by execution of the SLEEPinstruction  
POR: Power-on Reset Status bit  
1= A Power-on Reset has not occurred (set by firmware only)  
0= A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)  
BOR: Brown-out Reset Status bit  
1= A Brown-out Reset has not occurred (set by firmware only)  
0= A Brown-out Reset occurred (must be set in software after a Brown-out Reset occurs)  
Legend:  
R = Readable bit  
W = Writable bit  
‘1’ = Bit is set  
U = Unimplemented bit, read as ‘0’  
‘0’ = Bit is cleared x = Bit is unknown  
- n = Value at POR  
2003 Microchip Technology Inc.  
DS39599C-page 69  
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