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AM188EM-20VIW 参数 Datasheet PDF下载

AM188EM-20VIW图片预览
型号: AM188EM-20VIW
PDF下载: 下载PDF文件 查看货源
内容描述: 8位/ 16位微控制器 [8-Bit/16-Bit Microcontrollers]
分类和应用: 微控制器
文件页数/大小: 146 页 / 1574 K
品牌: INNOVASIC [ INNOVASIC, INC ]
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IA186EM/IA188EM  
Data Sheet  
8-Bit/16-Bit Microcontrollers  
February 25, 2011  
Description: When device is in halt state, the interrupt caused by a DMA completion will not  
bring the CPU out of the halt state.  
Workaround: Use idle mode instead of halt.  
Errata No. 6  
Problem: Does not clear the interrupt request bit for INT0 upon entering the ISR.  
Description: The interrupt bit for INT0 is not cleared until the interrupt routine is complete.  
Workaround: Do not rely on the bit to be cleared when nesting interrupts.  
Errata No. 7  
Problem: How hardware handshaking for UARTs during a bus hold cycle is handled differently  
between the AMD part and the Innovasic part.  
Description: In the AMD part, hardware handshaking works per the data sheet. The Innovasic  
part will occasionally drive a handshake signal to the incorrect state during bus hold instead of  
tristating the pin.  
Workaround: None. Avoid using hardware handshaking in conjunction with the bus hold  
operation with the Innovasic part UARTs.  
®
IA211050831-19  
UNCONTROLLED WHEN PRINTED OR COPIED  
http://www.Innovasic.com  
Customer Support:  
Page 144 of 146  
1-888-824-4184