参数资料
型号: M306K9F8LRP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP144
封装: 16 X 16 MM, 0.40 MM PITCH, PLASTIC, TQFP-144
文件页数: 30/101页
文件大小: 2590K
代理商: M306K9F8LRP
Reset
Rev.1.00
Jun 06, 2003
page 17 of 290
M16C/6K9 Group
Fig.VB-2 Reset sequence
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 the hardware reset.
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.
Fig.VB-1 shows the example reset circuit. Fig.VB-2 shows the reset sequence.
Fig.VB-1 Example reset circuit
Internal
clock
Φ
Address
Content of reset vector
Single chip
mode
BCLK
24cycles
FFFFE16
XIN
RESET
FFFFC16
More than 20 cycles are needed
RESET
VCC
0.6V
RESET
VCC
0V
3.3V
3.0V
Example when VCC = 3.3V
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