參數(shù)資料
型號(hào)： M38198ECFP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 4.2 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁(yè)數(shù)： 48/63頁(yè)
文件大?。?/td> 870K
代理商： M38198ECFP
49
3819 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Fig. WA-4 State transitions of system clock
Switch the mode by the allows shown between the mode blocks. (Do not switch between the mode directly without an allow.)
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.
Timer operates in the wait mode.
When the stop mode is released in middle/high-speed mode, a delay of approximately 0.5 ms occurs automatically by timer 1.
When the stop mode is released in low-speed mode, a delay of approximately 0.125 s occurs automatically by timer 1.
The example assumes that 8 MHz is being applied to the XIN pin and 32 kHz to the XCIN pin.
φ indicates the internal clock.
Low power dissipation mode (
φ =16 kHz)
CM7 = 1 (32 kHz selected)
CM6 = 0 (High-speed)
CM5 = 1 (XIN stopped)
CM4 = 1 (32 kHz oscillating)
CM
6
“1”
“0”
CM
4
“0”
“1”
b7
CPU mode register
(CPUM (CM) : address 003B 16)
CM4 : Port XC switch bit
0 : I/O port function
1 : XCIN-XCOUT oscillating function
CM5 : Main clock (XIN-XOUT) stop bit
0 : Oscillating
1 : Stopped
CM6 : Main clock division ratio selection bit
0 : f(XIN)/2 (high-speed mode)
1 : f(XIN)/8 (middle-speed mode)
CM7 : Internal system clock selection bit
0 : XIN-XOUT selected
(middle/high-speed mode)
1 : XCIN-XCOUT selected
(low-speed mode)
b0
Notes 1 :
2 :
3 :
4 :
5 :
Reset
CM
6
“1”
“0”
CM
4
“1”
“0”
CM
4
“1”
“0”
CM6
“1”
“0”
CM
4
“1”
“0”
CM
7
“1”
“0”
CM6
“1”
“0”
CM
7
“1”
“0”
CM
5
“1”
“0”
CM6
“1”
“0”
CM
5
“1”
“0”
High-speed mode (
φ = 4 MHz)
CM7 = 0 (8 MHz selected)
CM6 = 0 (High-speed)
CM5 = 0 (XIN oscillating)
CM4 = 1 (32 kHz oscillating)
CM6
“1”
“0”
Middle-speed mode (
φ =1 MHz)
CM7 = 0 (8 MHz selected)
CM6 = 1 (Middle-speed)
CM5 = 0 (XIN oscillating)
CM4 = 1 (32 kHz oscillating)
Middle-speed mode (
φ =1 MHz)
CM7 = 0 (8 MHz selected)
CM6 = 1 (Middle-speed)
CM5 = 0 (XIN oscillating)
CM4 = 0 (32 kHz stopped)
High-speed mode (
φ = 4 MHz)
CM7 = 0 (8 MHz selected)
CM6 = 0 (High-speed)
CM5 = 0 (XIN oscillating)
CM4 = 0 (32 kHz stopped)
Low-speed mode (
φ =16 kHz)
CM7 = 1 (32 kHz selected)
CM6 = 1 (Middle-speed)
CM5 = 0 (XIN oscillating)
CM4 = 1 (32 kHz oscillating)
Low-speed mode (
φ = 16 kHz)
CM7 = 1 (32 kHz selected)
CM6 = 0 (High-speed)
CM5 = 0 (XIN oscillating)
CM4 = 1 (32 kHz oscillating)
Low power dissipation mode (
φ =16 kHz)
CM7 = 1 (32 kHz selected)
CM6 = 1 (Middle-speed)
CM5 = 1 (XIN stopped)
CM4 = 1 (32 kHz oscillating)
CM
6
“1”
“0”
CM
5
“0”
“1”
CM
6
“1”
“0”
CM
5
“1”
“0”
相關(guān)PDF資料
PDF描述
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