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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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C161PI Scheda tecnica(PDF) 12 Page - Infineon Technologies AG |
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C161PI Scheda tecnica(HTML) 12 Page - Infineon Technologies AG |
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12 / 82 page  &3, Data Sheet 10 1999-07 RSTIN 76 78 I/O Reset Input with Schmitt-Trigger characteristics. A low level at this pin while the oscillator is running resets the C161PI. An internal pullup resistor permits power-on reset using only a capacitor connected to 9 SS. A spike filter suppresses input pulses <10 ns. Input pulses >100 ns safely pass the filter. The minimum duration for a safe recognition should be 100 ns + 2 CPU clock cycles. In bidirectional reset mode (enabled by setting bit BDRSTEN in register SYSCON) the RSTIN line is internally pulled low for the duration of the internal reset sequence upon any reset (HW, SW, WDT). See note below this table. Note: To let the reset configuration of PORT0 settle and to let the PLL lock a reset duration of ca. 1 ms is recommended. RST OUT 77 79 O Internal Reset Indication Output. This pin is set to a low level when the part is executing either a hardware-, a software- or a watchdog timer reset. RSTOUT remains low until the EINIT (end of initialization) instruction is executed. NMI 78 80 I Non-Maskable Interrupt Input. A high to low transition at this pin causes the CPU to vector to the NMI trap routine. When the PWRDN (power down) instruction is executed, the NMI pin must be low in order to force the C161PI to go into power down mode. If NMI is high, when PWRDN is executed, the part will continue to run in normal mode. If not used, pin NMI should be pulled high externally. Table 1 Pin Definitions and Functions (continued) Symbol Pin Num. TQFP Pin Num. MQFP Input Outp. Function |
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