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AT89C51RC2-3CSIM Datasheet(PDF) 58 Page - ATMEL Corporation |
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AT89C51RC2-3CSIM Datasheet(HTML) 58 Page - ATMEL Corporation |
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58 / 127 page  58 AT89C51RB2/RC2 4180C–8051–12/03 Table 45. IPL0 Register IPL0 - Interrupt Priority Register (B8h) Reset Value = X000 0000b Bit addressable 76 54 32 1 0 - PPCL PT2L PSL PT1L PX1L PT0L PX0L Bit Number Bit Mnemonic Description 7- Reserved The value read from this bit is indeterminate. Do not set this bit. 6 PPCL PCA Interrupt Priority Bit see PPCH for priority level. 5PT2L Timer 2 Overflow Interrupt Priority Bit see PT2H for priority level. 4 PSL Serial Port Priority Bit see PSH for priority level. 3PT1L Timer 1 Overflow Interrupt Priority Bit see PT1H for priority level. 2PX1L External Interrupt 1 Priority Bit see PX1H for priority level. 1PT0L Timer 0 Overflow Interrupt Priority Bit see PT0H for priority level. 0PX0L External Interrupt 0 Priority Bit see PX0H for priority level. |
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