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ATMEGA16L-8MI 参数 Datasheet PDF下载

ATMEGA16L-8MI图片预览
型号: ATMEGA16L-8MI
PDF下载: 下载PDF文件 查看货源
内容描述: 8位AVR微控制器具有16K字节的系统内可编程闪存 [8-bit AVR Microcontroller with 16K Bytes In-System Programmable Flash]
分类和应用: 闪存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: 315 页 / 2880 K
品牌: ATMEL [ ATMEL ]
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succeeding positive clock edge. As indicated by the two arrows tpd,max and tpd,min, a  
single signal transition on the pin will be delayed between ½ and 1½ system clock  
period depending upon the time of assertion.  
When reading back a software assigned pin value, a nop instruction must be inserted as  
indicated in Figure 25. The out instruction sets the “SYNC LATCH” signal at the positive  
edge of the clock. In this case, the delay tpd through the synchronizer is one system  
clock period.  
Figure 25. Synchronization when Reading a Software Assigned Pin Value  
SYSTEM CLK  
r16  
0xFF  
nop  
in r17, PINx  
out PORTx, r16  
INSTRUCTIONS  
SYNC LATCH  
PINxn  
0xFF  
0x00  
r17  
t
pd  
50  
ATmega16(L)  
2466E–AVR–10/02  
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