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      參數(shù)資料
      型號(hào): HD40A4669
      廠商: Hitachi,Ltd.
      英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
      中文描述: 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計(jì)算機(jī))
      文件頁數(shù): 28/142頁
      文件大?。?/td> 894K
      代理商: HD40A4669
      HD404669 Series
      28
      Bit
      Initial value
      Read/Write
      Bit name
      3
      0
      W
      ESR23
      2
      0
      W
      ESR22
      0
      0
      W
      ESR20
      1
      0
      W
      ESR21
      Detection edge selection register 2 (ESR2: $027)
      ESR21
      0
      1
      ESR20
      0
      1
      0
      1
      INT
      4
      detection edge
      No detection
      Falling-edge detection
      Rising-edge detection
      Falling/Rising-edge detection
      ESR23
      0
      1
      ESR22
      0
      1
      0
      1
      EVND detection edge
      No detection
      Falling-edge detection
      Rising-edge detection
      Falling/Rising-edge detection
      Figure 13 Detection Edge Selection Register 2 (ESR2)
      Table 5 External Interrupt Request Flags (IF0–IF4: $000, $001, $022, $023)
      IF0–IF4
      Interrupt Request
      0
      No
      1
      Yes
      External Interrupt Masks (IM0–IM4: $000, $001, $022, $023):
      Prevent (mask) interrupt requests
      caused by the corresponding external interrupt request flags, as listed in table 6.
      Table 6 External Interrupt Masks (IM0–IM4: $000, $001, $022, $023)
      IM0–IM4
      Interrupt Request
      0
      Enabled
      1
      Disabled (masked)
      相關(guān)PDF資料
      PDF描述
      HD404668 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
      HD404669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
      HD407A4669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
      HD404719FS Five timer/counters
      HD404439FS Five timer/counters
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      參數(shù)描述
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