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M38B53M4-059FP датащи(PDF) 86 Page - Mitsubishi Electric Semiconductor |
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M38B53M4-059FP датащи(HTML) 86 Page - Mitsubishi Electric Semiconductor |
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86 / 355 page ![]() 1-70 38B5 Group User’s Manual HARDWARE FUNCTIONAL DESCRIPTION SUPPLEMENT Timing After Interrupt The interrupt processing routine begins with the machine cycle fol- lowing the completion of the instruction that is currently in execution. Figure 78 shows a timing chart after an interrupt occurs, and Figure 79 shows the time up to execution of the interrupt processing routine. Fig. 78 Timing chart after interrupt occurs Fig. 79 Time up to execution of interrupt processing routine PCH PCL PSAL AH S, SPSS-2, SPS S-1, SPS PC BL BH AL, AH Address bus Data bus Not used : CPU operation code fetch cycle (This is an internal signal which cannot be observed from the external unit.) : Vector address of each interrupt : Jump destination address of each interrupt : “0016” or “0116” SYNC BL, BH AL, AH SPS WR RD SYNC φ 7 to 23 cycles (4 MHz, 1.75 µs to 5.75 µs) Interrupt request occurs Main routine Interrupt processing routine 2 cycles5 cycles Waiting time for pipeline post- processing Push onto stack vector fetch Interrupt operation starts 0 to 16 cycles |
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