參數(shù)資料
型號： PIC12F683-I/MF
廠商： Microchip Technology
文件頁數(shù)： 115/176頁
文件大?。?/td> 0K
描述： IC MCU FLASH 2KX14 8DFN
產(chǎn)品培訓模塊： Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
Digi-Key 應用說明： AN0005 PWM Example with Microchip's CCP Module
AN0005 Example Code
標準包裝： 60
系列： PIC® 12F
核心處理器： PIC
芯體尺寸： 8-位
速度： 20MHz
外圍設備： 欠壓檢測/復位，POR，PWM，WDT
輸入/輸出數(shù)： 5
程序存儲器容量： 3.5KB（2K x 14）
程序存儲器類型： 閃存
EEPROM 大小： 256 x 8
RAM 容量： 128 x 8
電壓 - 電源 (Vcc/Vdd)： 2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 4x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 8-VDFN 裸露焊盤
包裝： 管件
產(chǎn)品目錄頁面： 645 (CN2011-ZH PDF)
配用： AC164324-ND - MODULE SKT FOR MPLAB 8DFN/16QFN
XLT08DFN2-ND - SOCKET TRANSITION ICE 14DIP/8DFN
AC162058-ND - HEADER MPLAB ICD2 FOR PIC12F683
I3-DB12F683-ND - BOARD DAUGHTER ICEPIC3
XLT08DFN-ND - SOCKET TRANSITION ICE 8DFN
AC164032-ND - ADAPTER PICSTART PLUS 8DFN/DIP
AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC
2007 Microchip Technology Inc.
DS41211D-page 41
PIC12F683
5.0
TIMER0 MODULE
The Timer0 module is an 8-bit timer/counter with the
following features:
8-bit timer/counter register (TMR0)
8-bit prescaler (shared with Watchdog Timer)
Programmable internal or external clock source
Programmable external clock edge selection
Interrupt on overflow
Figure 5-1 is a block diagram of the Timer0 module.
5.1
Timer0 Operation
When used as a timer, the Timer0 module can be used
as either an 8-bit timer or an 8-bit counter.
5.1.1
8-BIT TIMER MODE
When used as a timer, the Timer0 module will
increment every instruction cycle (without prescaler).
Timer mode is selected by clearing the T0CS bit of the
OPTION register to ‘0’.
When TMR0 is written, the increment is inhibited for
two instruction cycles immediately following the write.
5.1.2
8-BIT COUNTER MODE
When used as a counter, the Timer0 module will
increment on every rising or falling edge of the T0CKI
pin. The incrementing edge is determined by the T0SE
bit of the OPTION register. Counter mode is selected by
setting the T0CS bit of the OPTION register to ‘1’.
FIGURE 5-1:
BLOCK DIAGRAM OF THE TIMER0/WDT PRESCALER
Note:
The value written to the TMR0 register can
be adjusted, in order to account for the two
instruction cycle delay when TMR0 is
written.
T0CKI
T0SE
pin
TMR0
Watchdog
Timer
WDT
Time-out
PS<2:0>
WDTE
Data Bus
Set Flag bit T0IF
on Overflow
T0CS
Note
1:
T0SE, T0CS, PSA, PS<2:0> are bits in the OPTION register.
2:
SWDTEN and WDTPS<3:0> are bits in the WDTCON register.
3:
WDTE bit is in the Configuration Word register.
0
1
0
1
0
1
8
8-bit
Prescaler
0
1
FOSC/4
PSA
16-bit
Prescaler
16
WDTPS<3:0>
31 kHz
INTOSC
SWDTEN
Sync
2 Tcy
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參數(shù)描述
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