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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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T89C5115-RATIM 데이터시트(PDF) 67 Page - ATMEL Corporation |
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T89C5115-RATIM 데이터시트(HTML) 67 Page - ATMEL Corporation |
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67 / 105 page  67 T89C5115 4128A–8051–04/02 Figure 30. PCA Timer/Counter The CMOD register includes three additional bits associated with the PCA. • The CIDL bit which allows the PCA to stop during idle mode. • The WDTE bit which enables or disables the WatchDog function on module 4. • The ECF bit which when set causes an interrupt and the PCA overflow flag CF in CCON register to be set when the PCA timer overflows. The CCON register contains the run control bit for the PCA and the flags for the PCA timer and each module. • The CR bit must be set to run the PCA. The PCA is shut off by clearing this bit. • The CF bit is set when the PCA counter overflows and an interrupt will be generated if the ECF bit in CMOD register is set. The CF bit can only be cleared by software. • The CCF0:1 bits are the flags for the modules (CCF0 for module0...) and are set by hardware when either a match or a capture occurs. These flags also can be cleared by software. CIDL CPS1 CPS0 ECF It CH CL 16 bit up/down counter To PCA modules FPca/6 FPca/2 T0 OVF P1.2 Idle CMOD 0xD9 WDTE CF CR CCON 0xD8 CCF1 CCF0 overflow |
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