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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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C8051F360 Fiches technique(PDF) 92 Page - Silicon Laboratories |
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C8051F360 Fiches technique(HTML) 92 Page - Silicon Laboratories |
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92 / 289 page  C8051F360/1/2/3/4/5/6/7/8/9 Rev. 1.1 92 On exit from the PCA interrupt service routine, the CIP-51 will return to the ADC0 Window Comparator ISR. On execution of the RETI instruction, SFR Page 0x00 used to access the PCA registers will be auto- matically popped off of the SFR Page Stack, and the contents of the SFRNEXT register will be moved to the SFRPAGE register. Software in the ADC0 ISR can continue to access SFR’s as it did prior to the PCA interrupt. Likewise, the contents of SFRLAST are moved to the SFRNEXT register. Recall this was the SFR Page value 0x0F being used to access OSCICN before the ADC0 interrupt occurred. See Figure 9.7 below. Figure 9.7. SFR Page Stack Upon Return From PCA Interrupt 0x00 (ADC0) 0x0F (OSCICN) SFRPAGE SFRLAST SFRNEXT SFR Page 0x00 Automatically popped off of the stack on return from interrupt SFRNEXT popped to SFRPAGE SFRLAST popped to SFRNEXT |
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