參數(shù)資料
型號: M37150M8-XXXFP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.95 MHz, MICROCONTROLLER, PDSO42
封裝: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁數(shù): 137/142頁
文件大?。?/td> 1712K
代理商: M37150M8-XXXFP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
M37150M6/M8/MA/MC/MF-XXXFP, M37150EFFP
93
Rev. 1.0
8.13. RESET CIRCUIT
When the oscillation of a quartz-crystal oscillator or a ceramic reso-
nator is stable and the power source voltage is 5 V ± 10 %, hold the
RESET pin at LOW for 2
s or more, then return to HIGH. Then, as
shown in Figure 8.13.2, reset is released and the program starts from
the address formed by using the content of address FFFF16 as the
high-order address and the content of the address FFFE16 as the
low-order address. The internal states of the microcomputer at reset
are shown in Figures 8.2.2 to 8.2.5.
An example of the reset circuit is shown in Figure 8.13.1.
The reset input voltage must be kept 0.9 V or less until the power
source voltage surpasses 4.5 V.
Fig.8.13.2 Reset Sequence
Fig.8.13.1 Example of Reset Circuit
Power source voltage 0 V
Reset input voltage 0 V
4.5 V
0.9 V
Power on
Vcc
RESET
Vss
Microcomputer
1
5
4
3
0.1
F
M51953AL
XIN
φ
RESET
Internal RESET
SYNC
Address
Data
32768 count of XIN
clock cycle (See note 3)
Reset address from the vector table
?
01, S
01, S-1 01, S-2
FFFE
FFFF
ADH,
ADL
?
ADL
ADH
Notes 1 : f(XIN) and f(
φ) are in the relation : f(XIN) = 2f (φ).
2 : A question mark (?) indicates an undefined state that
depends on the previous state.
3 : Immediately after a reset, timer 3 and timer 4 are
connected by hardware. At this time, “FF16” is set
in timer 3 and “0716” is set to timer 4. Timer 3 counts down
with f(XIN)/16, and reset state is released by the timer 4
overflow signal.
相關PDF資料
PDF描述
M37150MF-XXXFP 8-BIT, MROM, 8.95 MHz, MICROCONTROLLER, PDSO42
M37150MC-XXXFP 8-BIT, MROM, 8.95 MHz, MICROCONTROLLER, PDSO42
M37151MC-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
M37151MF-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
M37151M6-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
相關代理商/技術參數(shù)
參數(shù)描述
M37150MA 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37150MA-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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