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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M16C/1N датащи(PDF) 76 Page - Renesas Technology Corp |
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M16C/1N датащи(HTML) 76 Page - Renesas Technology Corp |
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76 / 238 page  Rev.1.00 Oct 20, 2004 page 64 of 222 M16C/1N Group 10. Interrupt REJ09B0007-0100Z (address 004D16) Key input interrupt request Port P10-P13 pull-up select bit Pull-up transistor Port P10 direction register Pull-up transistor Pull-up transistor Pull-up transistor P13/KI3 P12/KI2 P11/KI1 P10/KI0 Interrupt control circuit Key input interrupt control register KI0 input enable bit KI0 input polarity select bit Port P11 direction register KI1 input enable bit KI1 input polarity select bit Port P12 direction register KI2 input enable bit KI2 input polarity select bit Port P13 direction register KI3 input enable bit KI3 input polarity select bit Port P13 direction register b7 b6 b5 b4 b3 b2 b1 b0 Key input enable register KI0EN KI0 input enable bit 0 : Disabled 1 : Enabled KI0PL KI0 input polarity select bit 0 : Falling edge 1 : Rising edges KI1EN KI1 input enable bit 0 : Disabled 1 : Enabled KI1PL KI1 input polarity select bit 0 : Falling edge 1 : Rising edges KI2EN KI2 input enable bit 0 : Disabled 1 : Enabled KI2PL KI2 input polarity select bit 0 : Falling edge 1 : Rising edges KI3EN KI3 input enable bit 0 : Disabled 1 : Enabled KI3PL KI3 input polarity select bit 0 : Falling edge 1 : Rising edges Symbol KIEN Address 009816 When reset 0016 RW RW RW RW RW RW RW RW RW Function Bit name Bit symbol 10.5 Key Input Interrupt _____ When the direction register of any of P10 to P13 is set for input and the KIi (i=0 to 3) input enable bit of this port is set for enabled, if a falling or rising edge is input to that port, a key input interrupt is generated. A key input interrupt can also be used as a key-on wakeup function for cancelling the wait mode or stop mode. Figure 10.14 shows the block diagram of the key input interrupts. When the appropriate signal ("L" for a pin that has falling edge selected and "H" for a pin that has rising edge selected) is input to a pin for the input inhibit process has not been executed, inputs to the other pins are not detected as interrupts. _____ _____ You should overwrite the KIi (i=0 to 3) input polarity select bit or the KIi (i =0 to 3) input enable bit only _____ under conditions where the key input interrupt is disabled. After overwriting the KIi (i=0 to 3) input polarity _____ select bit or the KIi (i=0 to 3) input enable bit, clear the interrupt request bit, and then enable the key input interrupt. Figure 10.14 Block diagram of key input interrupt Figure 10.15 Key input enable register |
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