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TS80C32X2-LCBR 参数 Datasheet PDF下载

TS80C32X2-LCBR图片预览
型号: TS80C32X2-LCBR
PDF下载: 下载PDF文件 查看货源
内容描述: 8位CMOS微控制器0-60兆赫 [8-bit CMOS Microcontroller 0-60 MHz]
分类和应用: 微控制器和处理器外围集成电路异步传输模式ATM时钟
文件页数/大小: 54 页 / 584 K
品牌: TEMIC [ TEMIC SEMICONDUCTORS ]
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TS80C52X2  
XTAL1  
XTAL1:2  
X2 bit  
CPU clock  
STD Mode  
X2 Mode  
STD Mode  
Figure 2. Mode Switching Waveforms  
The X2 bit in the CKCON register (See Table 4.) allows to switch from 12 clock cycles per instruction to 6 clock  
cycles and vice versa. At reset, the standard speed is activated (STD mode). Setting this bit activates the X2 feature  
(X2 mode).  
CAUTION  
In order to prevent any incorrect operation while operating in X2 mode, user must be aware that all peripherals  
using clock frequency as time reference (UART, timers) will have their time reference divided by two. For example  
a free running timer generating an interrupt every 20 ms will then generate an interrupt every 10 ms. UART with  
4800 baud rate will have 9600 baud rate.  
8
Rev. B - Jan. 25, 1999  
Preliminary