欢迎访问ic37.com |
会员登录 免费注册
发布采购

PIC16C71-04/SO 参数 Datasheet PDF下载

PIC16C71-04/SO图片预览
型号: PIC16C71-04/SO
PDF下载: 下载PDF文件 查看货源
内容描述: 8位CMOS微控制器与A / D转换器 [8-Bit CMOS Microcontrollers with A/D Converter]
分类和应用: 转换器微控制器
文件页数/大小: 176 页 / 1596 K
品牌: MICROCHIP [ MICROCHIP ]
 浏览型号PIC16C71-04/SO的Datasheet PDF文件第30页浏览型号PIC16C71-04/SO的Datasheet PDF文件第31页浏览型号PIC16C71-04/SO的Datasheet PDF文件第32页浏览型号PIC16C71-04/SO的Datasheet PDF文件第33页浏览型号PIC16C71-04/SO的Datasheet PDF文件第35页浏览型号PIC16C71-04/SO的Datasheet PDF文件第36页浏览型号PIC16C71-04/SO的Datasheet PDF文件第37页浏览型号PIC16C71-04/SO的Datasheet PDF文件第38页  
PIC16C71X  
When assigned to the Timer0 module, all instructions  
writing to the TMR0 register (e.g. CLRF 1, MOVWF 1,  
6.3  
Prescaler  
An 8-bit counter is available as a prescaler for the  
Timer0 module, or as a postscaler for the Watchdog  
Timer, respectively (Figure 6-6). For simplicity, this  
counter is being referred to as “prescaler” throughout  
this data sheet. Note that there is only one prescaler  
available which is mutually exclusively shared between  
the Timer0 module and the Watchdog Timer. Thus, a  
prescaler assignment for the Timer0 module means  
that there is no prescaler for the Watchdog Timer, and  
vice-versa.  
BSF  
1,x....etc.) will clear the prescaler. When  
assigned to WDT, a CLRWDT instruction will clear the  
prescaler along with the Watchdog Timer. The pres-  
caler is not readable or writable.  
Note: Writing to TMR0 when the prescaler is  
assigned to Timer0 will clear the prescaler  
count, but will not change the prescaler  
assignment.  
The PSA and PS2:PS0 bits (OPTION<3:0>) determine  
the prescaler assignment and prescale ratio.  
FIGURE 6-6: BLOCK DIAGRAM OF THE TIMER0/WDT PRESCALER  
Data Bus  
8
CLKOUT (=Fosc/4)  
M
U
X
1
0
0
1
M
U
X
RA4/T0CKI  
pin  
SYNC  
2
Cycles  
TMR0 reg  
T0SE  
T0CS  
Set flag bit T0IF  
on Overflow  
PSA  
0
1
8-bit Prescaler  
M
U
X
Watchdog  
Timer  
8
8 - to - 1MUX  
PS2:PS0  
PSA  
1
0
WDT Enable bit  
M U X  
PSA  
WDT  
Time-out  
Note: T0CS, T0SE, PSA, PS2:PS0 are (OPTION<5:0>).  
DS30272A-page 34  
1997 Microchip Technology Inc.  
 
 复制成功!