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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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STC89LE53RC Datenblatt(PDF) 81 Page - STCmicro Technology Co,.Ltd |
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STC89LE53RC Datenblatt(HTML) 81 Page - STCmicro Technology Co,.Ltd |
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81 / 165 page  IE: Interrupt Enable Rsgister EA - ET2 ES ET1 EX1 ET0 EX0 (MSB) (LSB) Enable Bit = 1 enables the interrupt . Enable Bit = 0 disables it . Symbol Position Function EA IE.7 disables all interrupts. if EA = 0,no interrupt will be acknowledged. if EA = 1, each interrupt source is individually enabled or disabled by setting or clearing its enable bit. ET2 IE.5 Timer 2 interrupt enable bit ES IE.4 Serial Port interrupt enable bit ET1 IE.3 Timer 1 interrupt enable bit EX1 IE.2 External interrupt 1 enable bit ET0 IE.1 Timer 0 interrupt enable bit EX0 IE.0 External interrupt 0 enable bit IP: Interrupt Priority Low Register - - PT2 PS PT1 PX1 PT0 PX0 (MSB) (LSB) Priority bit = 1 assigns high priority . Priority bit = 0 assigns low priority. Symbol Position Function PT2 IP.5 Timer 2 interrupt priority bit PS IP.4 Serial Port interrupt priority bit. PT1 IP.3 Timer 1 interrupt priority bit PX1 IP.2 External interrupt 1 priority bit PT0 IP.1 Timer 0 interrupt priority bit PX0 IP.0 External interrupt 0 priority bit IPH: Interrupt Priority High Register LSB bit B7 B6 B5 B4 B3 B2 B1 B0 name PX3H PX2H PT2H PSH PT1H PX1H PT0H PX0H PX3H : If set, Set priority for external interrupt 3 highest PX2H : If set, Set priority for external interrupt 2 highest PT2H : If set, Set for Timer 2 interrupt highest PSH : If set, Set priority for serial port highest PT1H : If set, Set priority for Timer 1 interrupt highest PX1H : If set, Set priority for external interrupt 1 highest PT0H : If set, Set priority for Timer 0 interrupt highest PX0H : If set, Set priority for external interrupt 0 highest 81 |
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