參數(shù)資料
      型號: M38B54E7XXXFS
      廠商: Renesas Technology Corp.
      英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
      中文描述: 單芯片8位CMOS微機
      文件頁數(shù): 37/70頁
      文件大?。?/td> 864K
      代理商: M38B54E7XXXFS
      MITSUBISHI MICROCOMPUTERS
      38B5 Group
      SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
      36
      PRELIMINARY
      Notice: This s not a final specification.
      Some parametric imits are subject to change.
      FLD Controller
      The 38B5 group has fluorescent display (FLD) drive and control cir-
      cuits.
      The FLD controller consists of the following components:
      40 pins for FLD control pins
      FLDC mode register
      FLD data pointer
      FLD data pointer reload register
      Tdisp time set register
      Toff1 time set register
      Toff2 time set register
      Port P0FLD/port switch register
      Port P2FLD/port switch register
      Port P8FLD/port switch register
      Port P8 FLD output control register
      FLD automatic display RAM (max. 160 bytes)
      A gradation display mode can be used for bright/dark display as a
      display function.
      Fig. 39 Block Diagram for FLD Control Circuit
      P2
      0
      /FLD
      0
      P2
      1
      /FLD
      1
      P2
      2
      /FLD
      2
      P2
      3
      /FLD
      3
      P2
      4
      /FLD
      4
      P2
      5
      /FLD
      5
      P2
      6
      /FLD
      6
      P2
      7
      /FLD
      7
      0004
      16
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      0EFA
      16
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      8
      0000
      16
      0EF9
      16
      8
      P0
      0
      /FLD
      8
      P0
      1
      /FLD
      9
      P0
      2
      /FLD
      10
      P0
      3
      /FLD
      11
      P0
      4
      /FLD
      12
      P0
      5
      /FLD
      13
      P0
      6
      /FLD
      14
      P0
      7
      /FLD
      15
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      0002
      16
      8
      P1
      0
      /FLD
      16
      P1
      1
      /FLD
      17
      P1
      2
      /FLD
      18
      P1
      3
      /FLD
      19
      P1
      4
      /FLD
      20
      P1
      5
      /FLD
      21
      P1
      6
      /FLD
      22
      P1
      7
      /FLD
      23
      0006
      16
      8
      P3
      0
      /FLD
      24
      P3
      1
      /FLD
      25
      P3
      2
      /FLD
      26
      P3
      3
      /FLD
      27
      P3
      4
      /FLD
      28
      P3
      5
      /FLD
      29
      P3
      6
      /FLD
      30
      P3
      7
      /FLD
      31
      0010
      16
      0EFB
      16
      8
      P8
      0
      /FLD
      32
      P8
      1
      /FLD
      33
      P8
      2
      /FLD
      34
      P8
      3
      /FLD
      35
      P8
      4
      /FLD
      36
      P8
      5
      /FLD
      37
      P8
      6
      /FLD
      38
      P8
      7
      /FLD
      39
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      FLD/P
      0F60
      16
      0FFF
      16
      Main address bus
      Local address bus
      F
      Main
      data bus
      Local
      data bus
      FLD blanking interrupt
      FLD digit interrupt
      FLDC mode register
      (0EF4
      16
      )
      FLD data pointer
      reload register
      (0EF8
      16
      )
      FLD data pointer
      (0EF8
      16
      )
      Timing generator
      Address
      decoder
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