參數(shù)資料
型號: M30218MFCFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 46/161頁
文件大小: 2043K
代理商: M30218MFCFP
Under
development
Tentative Specifications REV.A
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
14
Reset
Reset
There are two kinds of resets; hardware and software. In both cases, operation is the same after the reset.
(See “Software Reset” for details of software resets.) This section explains on hardware resets.
When the supply voltage is in the range where operation is guaranteed, a reset is effected by holding the
reset pin level “L” (0.2VCC max.) for at least 20 cycles. When the reset pin level is then returned to the “H”
level while main clock is stable, the reset status is cancelled and program execution resumes from the
address in the reset vector table.
Figure DA-1 shows the example reset circuit. Figure DA-2 shows the reset sequence.
Figure DA-1. Example reset circuit
RESET
VCC
0.8V
RESET
VCC
0V
5V
4.0V
Example when f(XIN) = 10MHz and VCC = 5V
.
BCLK
Address
BCLK
24cycles
FFFFC16
FFFFE16
Content of reset vector
XIN
RESET
More than 20 cycles are needed
(Internal clock)
(Internal address
signal)
Figure DA-2. Reset sequence
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