SM39R16A6
内嵌
16KB
具有
ISP
功½的
Flash
和
1K+256BRAM
的
8
½控制器
1.5.6
Example of software reset
MOV TAKEY, #55h
MOV TAKEY, #0AAh
MOV TAKEY, #5Ah; enable SWRES write attribute
MOV SWRES, #0FFh ; software reset MCU
1.6
时钟源
默认时钟来自于内部22.1184MhzOSC时钟信号,其时钟应用于初始化阶段,其主要的工½是确定时钟源½用的正常运
行。
内部时钟源来源于不同分频的内部OSC如表
表
1‑ 1: Selection of clock source
Clock source
external crystal (use XTAL1 and XTAL2 pins )
external crystal (only use XTAL1, the XTAL2 define as I/O)
22.1184MHz from internal OSC
22.1184MHz/2 from internal OSC
22.1184MHz/4 from internal OSC
22.1184MHz/8 from internal OSC
22.1184MHz/16 from internal OSC
对于来源于内部OSC的频率,这将有些许误差,在应用程序中需要精确的频率时,须注意½用. 最大误差如表
表
1‑ 2: Temperature with variance
Temperature Max Variance
±2%
25℃
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M04
Ver 0.4
SM39R16A6
06/11/2013
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