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AT80C51RA2-RLSIV Datasheet(PDF) 42 Page - International Rectifier |
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AT80C51RA2-RLSIV Datasheet(HTML) 42 Page - International Rectifier |
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42 / 85 page ![]() 42 4188E–8051–08/06 AT/TS8xC51Rx2 Table 6-18. IP Register IP - Interrupt Priority Register (B8h) Reset Value = X000 0000b Bit addressable 76 543 210 - PPC PT2 PS PT1 PX1 PT0 PX0 Bit Number Bit Mnemonic Description 7- Reserved The value read from this bit is indeterminate. Do not set this bit. 6 PPC PCA interrupt priority bit Refer to PPCH for priority level. 5PT2 Timer 2 overflow interrupt Priority bit Refer to PT2H for priority level. 4PS Serial port Priority bit Refer to PSH for priority level. 3PT1 Timer 1 overflow interrupt Priority bit Refer to PT1H for priority level. 2 PX1 External interrupt 1 Priority bit Refer to PX1H for priority level. 1PT0 Timer 0 overflow interrupt Priority bit Refer to PT0H for priority level. 0 PX0 External interrupt 0 Priority bit Refer to PX0H for priority level. |
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