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Z8F082ASH020SC датащи(PDF) 73 Page - Zilog, Inc. |
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Z8F082ASH020SC датащи(HTML) 73 Page - Zilog, Inc. |
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73 / 244 page ![]() PS024705-0405 P R E L I M I N A R Y Interrupt Controller Z8 Encore! XP® F08xA Series Product Specification 55 PA6CENH—Port A Bit[6] or Comparator Interrupt Request Enable Low Bit PAxENL—Port A Bit[x] Interrupt Request Enable Low Bit IRQ2 Enable High and Low Bit Registers Table 41 describes the priority control for IRQ2. The IRQ2 Enable High and Low Bit reg- isters (Tables 42 and 43) form a priority encoded enabling for interrupts in the Interrupt Request 2 register. Priority is generated by setting bits in each register. Reserved—Must be 0. C3ENH—Port C3 Interrupt Request Enable High Bit C2ENH—Port C2 Interrupt Request Enable High Bit Table 40. IRQ1 Enable Low Bit Register (IRQ1ENL) BITS 7 6 5 4 3 2 1 0 FIELD PA7ENL PA6CENL PA5ENL PA4ENL PA3ENL PA2ENL PA1ENL PA0ENL RESET 0 000 00 00 R/W R/WR/W R/WR/W R/WR/W R/WR/W ADDR FC5H Table 41. IRQ2 Enable and Priority Encoding IRQ2ENH[x]IRQ2ENL[x] Priority Description 0 0 Disabled Disabled 0 1 Level 1 Low 1 0 Level 2 Nominal 1 1 Level 3 High where x indicates the register bits from 0–7. Table 42. IRQ2 Enable High Bit Register (IRQ2ENH) BITS 7 6 5 4 3 2 1 0 FIELD Reserved C3ENH C2ENH C1ENH C0ENH RESET 0 000 00 00 R/W R/WR/W R/WR/W R/WR/W R/WR/W ADDR FC7H |
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