参数资料
型号: S3P9664-SM
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24
封装: 0.300 INCH, SOP-24
文件页数: 120/148页
文件大小: 784K
代理商: S3P9664-SM
RESET
RESET and POWER-DOWN
S3C9664/P9664 (Preliminary Spec)
8-2
Vc (Compare Voltage)
Reference Voltage
Divide Voltage
VDD (Supply Voltage)
Normal Operation
Reset Operation
by LVD
NOTES:
1.
LVD Operation Voltage Range: 2.3 V-6.0 V
2.
LVD Detection Voltage Range: 3.4 V
± 0.4 V
3.
LVD Current Consumption:
Less then 10 uA (normally 5 uA)
4.
LVD Powered Reset Release Time:
more then 500 usec (LVD only, typical)
5.
LVD Simulation Conditions (Hspice Simulation)
Temp: -40 - 80 C
Process Veriation: Worst to best conditions
Test Voltage: 0.0 V-7.0 V
Powered Slew Rate: 5 V/1 usec- 5 V/10 msec
Figure 8-2. LVD Architecture
The following sequence of events occur during a reset operation:
— All interrupts are disabled.
— The watchdog function (basic timer) is enabled.
— Ports 0 and 1 are set to Schmitt trigger input mode and all pull-up resistors are disabled.
— Peripheral control and data registers are disabled and reset to their initial values.
— The program counter is loaded with the ROM reset address, 0100H.
— When the programmed oscillation stabilization time interval has elapsed, the address stored in ROM location
0100H (and 0101H) is fetched and executed.
NOTE
To program the duration of the oscillation stabilization interval, you must make the appropriate settings to
the basic timer control register, BTCON, before entering Stop mode. Also, if you do not want to use the
basic timer watchdog function (which causes a system reset if a basic timer counter overflow occurs),
you can disable it by writing '1010B' to the upper nibble of BTCON.
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