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68HC05PL4 датащи(PDF) 61 Page - Freescale Semiconductor, Inc |
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68HC05PL4 датащи(HTML) 61 Page - Freescale Semiconductor, Inc |
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61 / 98 page ![]() April 30, 1998 GENERAL RELEASE SPECIFICATION MC68HC05PL4 16-BIT PROGRAMMABLE TIMER REV 2.0 9-11 9.7 16-BIT TIMER OPERATION DURING WAIT MODE During WAIT mode the 16-bit timer continues to operate normally and may gener- ate an interrupt to trigger the MCU out of the WAIT mode. 9.8 16-BIT TIMER OPERATION DURING STOP MODE When the MCU enters the STOP mode the free-running counter stops counting (the internal processor clock is stopped). It remains at that particular count value until the STOP mode is exited by applying a low signal to the IRQ pin, at which time the counter resumes from its stopped value as if nothing had happened. If STOP mode is exited via an external reset (logic low applied to the RESET pin) the counter is forced to timer interrupt vector. If a valid input capture edge occurs at the PA2/TCAP pin during the STOP mode the input capture detect circuitry will be armed. This action does not set any ags or “wake up” the MCU, but when the MCU does “wake up” there will be an active input capture ag (and data) from the rst v alid edge. If the STOP mode is exited by an external reset, no input capture ag or data will be present even if a valid input capture edge was detected during the STOP mode. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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