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SH7052 Datasheet(PDF) 402 Page - Renesas Technology Corp |
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SH7052 Datasheet(HTML) 402 Page - Renesas Technology Corp |
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402 / 919 page  376 Sample Setup Procedure for One-Shot pulse Output: An example of the setup procedure for one-shot pulse output is shown in figure 10.56. 1. Set the first-stage counter clock ø' in prescaler register 1 (PSCR1), and select the second-stage counter clock ø" with the CKSEL bit in timer control register8 TCR8. 2. Set port K control registers H and L (PKCRH, PKCRL) corresponding to the waveform output port to ATU one-shot pulse output. Also set the corresponding bit to 1 in the port K IO register (PKIOR) to specify the output attribute. 3. Set the one-shot pulse width in the down-counter (DCNT) corresponding to the port set in (2). If necessary, a timer interrupt request can be sent to the CPU when the down-counter underflows by making the appropriate setting in the interrupt enable register (TIER8). 4. Set the corresponding bit (DST8A to DST8P) to 1 in the down-count start register (DSTR) to start the down-counter (DCNT). Select counter clock 1 Set port-ATU-II connection 2 Set pulse width 3 Start down-count 4 One-shot pulse output Start Figure 10.56 Sample Setup Procedure for One-Shot Pulse Output |
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