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AT80C51RA2-RLSIV Datasheet(PDF) 30 Page - ATMEL Corporation

Part # AT80C51RA2-RLSIV
Description  High Performance 8-bit Microcontroller
PDF  86 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT80C51RA2-RLSIV Datasheet(HTML) 30 Page - ATMEL Corporation

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4188F–8051–01/08
AT/TS8xC51Rx2
Figure 6-6.
PCA Capture Mode
6.3.2
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 regis-
ters 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 6-7).
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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