參數(shù)資料
型號(hào)： AT83C51RB2XXX-SLSIL
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Microcontroller
中文描述： 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 30/81頁
文件大?。?/td> 1082K
代理商： AT83C51RB2XXX-SLSIL
31
AT80C51RD2/AT83C51Rx2
4113A–8051–09/02
PCA Capture Mode
To use one of the PCA modules in the capture mode either one or both of the CCAPM
bits CAPN and CAPP for that module must be set. The external CEX input for the mod-
ule (on port 1) is sampled for a transition. When a valid transition occurs the PCA
hardware loads the value of the PCA counter registers (CH and CL) into the module's
capture registers (CCAPnL and CCAPnH). If the CCFn bit for the module in the CCON
SFR and the ECCFn bit in the CCAPMn SFR are set then an interrupt will be generated
(see Figure 10).
Figure 10.
PCA Capture Mode
16-bit Software Timer/
Compare Mode
The PCA modules can be used as software timers by setting both the ECOM and MAT
bits in the modules CCAPMn register. The PCA timer will be compared to the module's
capture registers and when a match occurs an interrupt will occur if the CCFn (CCON
SFR) and the ECCFn (CCAPMn SFR) bits for the module are both set (see Figure 11).
CF
CR
CCON
0xD8
CH
CL
CCAPnH
CCAPnL
CCF4 CCF3
CCF2
CCF1 CCF0
PCA IT
PCA Counter/Timer
ECOMn
CCAPMn, n= 0 to 4
0xDA to 0xDE
CAPNn MATn TOGn PWMn ECCFn
CAPPn
Cex.n
Capture
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT83C51RB2XXX-SLSIM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontroller
AT83C51RC2 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller
AT83C51RC2-3CSUL 制造商:IRF 制造商全稱:International Rectifier 功能描述:High Performance 8-bit Microcontroller
AT83C51RC2-3CSUM 制造商:IRF 制造商全稱:International Rectifier 功能描述:High Performance 8-bit Microcontroller
AT83C51RC2-RLTUL 制造商:IRF 制造商全稱:International Rectifier 功能描述:High Performance 8-bit Microcontroller
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