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PIC18F4431-I/PT 参数 Datasheet PDF下载

PIC18F4431-I/PT图片预览
型号: PIC18F4431-I/PT
PDF下载: 下载PDF文件 查看货源
内容描述: 28 /40/ 44引脚增强型闪存微控制器采用纳瓦技术,高性能PWM和A / D [28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D]
分类和应用: 闪存微控制器
文件页数/大小: 392 页 / 3127 K
品牌: MICROCHIP [ MICROCHIP ]
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PIC18F2331/2431/4331/4431  
REGISTER 3-2:  
OSCCON: OSCILLATOR CONTROL REGISTER  
R/W-0  
IDLEN  
bit 7  
R/W-0  
IRCF2  
R/W-0  
IRCF1  
R/W-0  
IRCF0  
R(1)  
R-0  
R/W-0  
SCS1  
R/W-0  
SCS0  
OSTS  
IOFS  
bit 0  
Legend:  
R = Readable bit  
-n = Value at POR  
W = Writable bit  
‘1’ = Bit is set  
U = Unimplemented bit, read as ‘0’  
‘0’ = Bit is cleared x = Bit is unknown  
bit 7  
IDLEN: Idle Enable bit  
1= Idle mode enabled; CPU core is not clocked in power-managed modes  
0= Run mode enabled; CPU core is clocked in power-managed modes  
bit 6-4  
IRCF<2:0>: Internal Oscillator Frequency Select bits  
111= 8 MHz (8 MHz source drives clock directly)  
110= 4 MHz (default)  
101= 2 MHz  
100= 1 MHz  
011= 500 kHz  
010= 250 kHz  
001= 125 kHz  
000= 31 kHz (INTRC source drives clock directly)(2)  
bit 3  
OSTS: Oscillator Start-up Timer Time-out Status bit(1)  
1= Oscillator Start-up Timer time-out has expired; primary oscillator is running  
0= Oscillator Start-up Timer time-out is running; primary oscillator is not ready  
bit 2  
IOFS: INTOSC Frequency Stable bit  
1= INTOSC frequency is stable  
0= INTOSC frequency is not stable  
bit 1-0  
SCS<1:0>: System Clock Select bits  
1x= Internal oscillator block  
01= Secondary (Timer1) oscillator  
00= Primary oscillator  
Note 1: Depends on the state of the IESO bit in Configuration Register 1H.  
2: Default output frequency of INTOSC on Reset.  
DS39616D-page 36  
2010 Microchip Technology Inc.  
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