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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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7733 Scheda tecnica(PDF) 840 Page - Renesas Technology Corp |
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7733 Scheda tecnica(HTML) 840 Page - Renesas Technology Corp |
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840 / 940 page  KEY INPUT INTERRUPT FUNCTION 7736 Group User’s Manual 5–6 5.2.3 Interrupt function ____ The key input interrupt and the INT2 interrupt share the same interrupt vector addresses and interrupt control register. Specify addresses FFF016 and FFF116 (in order wor ds, the vector addresses for the INT 2 /key input interrupt) as the interrupt vector addresses; specify the INT2/key input interrupt control register (address 7F16) as the interrupt control register. Figure 5.2.4 shows the structure of the INT2/key input interrupt control register when the key input interrupt function is selected. The operation at accepting a key input interrupt request is the same as that at accepting an INT2 interrupt request. 5.2 Block description ____ Fig. 5.2.4 Structure of INT2/key input interrupt control register when key input interrupt function is selected b7 b6 b5 b4 b3 b2 b1 b0 INT2 /key input interrupt control register (address 7F16) Bit 4 Must be fixed to “0.” 3 Interrupt request bit 2 1 0 Interrupt priority level selection bits Bit name At reset Undefined 0 0 0 0 0 0 RW Functions 0 0 0: Level 0 (Interrupt is disabled.) 0 0 1: Level 1 0 1 0: Level 2 0 1 1: Level 3 1 0 0: Level 4 1 0 1: Level 5 1 1 0: Level 6 1 1 1: Level 7 b2 b1 b0 0: No interrupt request has occurred. 1: Interrupt request has occurred. 5 7 6 Not implemented. 00 Undefined RW RW RW RW RW RW – – |
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