參數(shù)資料
      型號: MC68L11D0CFB3
      廠商: MOTOROLA INC
      元件分類: 微控制器/微處理器
      英文描述: 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQFP44
      封裝: 10 X 10 MM, 2 MM HEIGHT, 0.80 MM PITCH, QFP-44
      文件頁數(shù): 80/131頁
      文件大?。?/td> 1640K
      代理商: MC68L11D0CFB3
      MOTOROLA
      RESETS AND INTERRUPTS
      MC68HC11D3
      5-8
      TECHNICAL DATA
      The IRVNE control bit allows internal read accesses to be available on the external
      data bus during factory testing or emulation. Refer to SECTION 4 OPERATING
      MODES AND ON-CHIP MEMORY for more information.
      PSEL[3:0] — Priority Select Bits
      These bits select one interrupt source to be elevated above all other I-bit-related
      sources and can be written to only while the I bit in the CCR is set (interrupts disabled).
      5.4 Interrupts
      The MCU has 18 interrupt vectors that support 22 interrupt sources. The 19 maskable
      interrupts are generated by on-chip peripheral systems. These interrupts are recog-
      nized when the global interrupt mask bit (I) in the condition code register (CCR) is
      clear. The three non-maskable interrupt sources are illegal opcode trap, software in-
      terrupt, and XIRQ pin. Refer to Table 5-4, which shows the interrupt sources and vec-
      tor assignments for each source.
      Table 5-3 Highest Priority Interrupt Selection
      PSEL[3:0]
      Interrupt Source Promoted
      0 0 0 0
      Timer Overflow
      0 0 0 1
      Pulse Accumulator Overflow
      0 0 1 0
      Pulse Accumulator Input Edge
      0 0 1 1
      SPI Serial Transfer Complete
      0 1 0 0
      SCI Serial System
      0 1 0 1
      Reserved (Default to IRQ)
      0 1 1 0
      IRQ (External Pin)
      0 1 1 1
      Real-Time Interrupt
      1 0 0 0
      Timer Input Capture 1
      1 0 0 1
      Timer Input Capture 2
      1 0 1 0
      Timer Input Capture 3
      1 0 1 1
      Timer Output Compare 1
      1 1 0 0
      Timer Output Compare 2
      1 1 0 1
      Timer Output Compare 3
      1 1 1 0
      Timer Output Compare 4
      1 1 1 1
      Timer Input Capture 4/Output Compare 5
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