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UPD17072 데이터시트(PDF) 82 Page - Renesas Technology Corp |
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UPD17072 데이터시트(HTML) 82 Page - Renesas Technology Corp |
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82 / 228 page ![]() µPD17072,17073 80 Figure 11-10. Configuration of Interrupt Edge Select Register Note For the function of the BTM1CK flag, refer to 12.3.1 Outline of basic timer 1. Note that as soon as the interrupt request issuing edge is changed by the IEG flag, the interrupt request signal may be issued. Suppose that the IEG flag is set to “1” (specifying the falling edge) and that a high level is input to the INT pin, as shown in Table 11-2. If the IEG flag is cleared at this time, the edge detector circuit judges that a rising edge has been input, and issues an interrupt request. Flag symbol b3 0 b2 I N T b1 B T M 1 C K b0 I E G Name Address (BANK1) 56H Read/ Write R/W Sets input edge to issue interrupt request of INT pin Rising edge Falling edge 0 1 Sets time interval at which IRQBTM1 flag is setNote 32 ms (31.25 Hz) 8 ms (125 Hz) 0 1 Detects status of INT pin Low level is input to INT pin High level is input to INT pin 0 1 Fixed to “0” Power-ON Clock stop CE 0 0 0 0 0 0 0 0 0 0 Interrupt edge select register At reset |
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