參數(shù)資料
      型號(hào): M38030F6-XXXKP
      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(jī)
      文件頁數(shù): 68/119頁
      文件大小: 1575K
      代理商: M38030F6-XXXKP
      Rev.1.00
      REJ03B0212-0100
      Apr 2, 2007
      Page 68 of 117
      3803 Group (Spec.L)
      Fig 66. State transitions of system clock
      CM
      4
      : Port X
      C
      switch bit
      1 : X
      CIN-
      X
      COUT
      oscillating function
      CM
      5
      : Main clock (X
      IN
      -X
      OUT
      ) stop bit
      0 : Operating
      1 : Stopped
      CM
      7
      , CM
      6
      : Main clock division ratio selection bit
      b7 b6
      0 0 :
      φ
      = f(X
      IN
      )/2 (High-speed mode)
      0 1 :
      φ
      = f(X
      IN
      )/8 (Middle-speed mode)
      1 0 :
      φ
      = f(X
      CIN
      )/2 (Low-speed mode)
      1 1 : Not available
      Reset
      C
      4
      CM
      “0
      ←→
      ”1
      CM
      “1
      ←→
      ”0
      CM
      4
      “1
      ←→
      ”0
      CM
      6
      “1
      ←→
      ”0
      C
      7
      C
      4
      C
      5
      CM
      6
      “1”
      ←→
      ”0”
      CM
      6
      “1”
      ←→
      ”0”
      CPU mode register
      (CPUM : address 003B
      16
      )
      b7
      b4
      CM
      “0
      ←→
      ”1
      CM
      “1
      ←→
      ”0
      High-speed mode
      (f(
      φ
      ) = 4 MHz)
      CM
      7
      =0
      CM
      6
      =0
      CM
      5
      =0 (8 MHz oscillating)
      CM
      4
      =0 (32 kHz stopped)
      High-speed mode
      (f(
      φ
      ) = 4 MHz)
      CM
      7
      =0
      CM
      6
      =0
      CM
      5
      =0 (8 MHz oscillating)
      CM
      4
      =1 (32 kHz oscillating)
      Notes1
      : Switch the mode by the allows shown between the mode blocks. (Do not switch between the modes directly without an allow.)
      2
      : The all modes can be switched to the stop mode or the wait mode and return to the source mode when the stop mode or the
      wait mode is ended.
      3
      : Timer operates in the wait mode.
      4
      : When the stop mode is ended, a delay of approximately 1 ms occurs by connecting prescaler 12 and Timer 1 in middle/high-
      speed mode.
      5
      : When the stop mode is ended, a delay of approximately 0.25 s occurs by Timer 1 and Timer 2 in low-speed mode.
      6
      : Wait until oscillation stabilizes after oscillating the main clock X
      IN
      before the switching from the low-speed mode to middle/
      high-speed mode.
      7
      : The example assumes that 8 MHz is being applied to the X
      IN
      pin and 32 kHz to the X
      CIN
      pin.
      φ
      indicates the internal clock.
      Middle-speed mode
      (f(
      φ
      ) = 1 MHz)
      CM
      7
      =0
      CM
      6
      =1
      CM
      5
      =0 (8 MHz oscillating)
      CM
      4
      =0 (32 kHz stopped)
      Middle-speed mode
      (f(
      φ
      ) = 1 MHz)
      CM
      7
      =0
      CM
      6
      =1
      CM
      5
      =0 (8 MHz oscillating)
      CM
      4
      =1 (32 kHz oscillating)
      Low-speed mode
      (f(
      φ
      ) = 16 kHz)
      CM
      7
      =1
      CM
      6
      =0
      CM
      5
      =0 (8 MHz oscillating)
      CM
      4
      =1 (32 kHz oscillating)
      Low-speed mode
      (f(
      φ
      ) = 16 kHz)
      CM
      7
      =1
      CM
      6
      =0
      CM
      5
      =1 (8 MHz stopped)
      CM
      4
      =1 (32 kHz oscillating)
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