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AL10051N1DL 参数 Datasheet PDF下载

AL10051N1DL图片预览
型号: AL10051N1DL
PDF下载: 下载PDF文件 查看货源
内容描述: 薄膜片式电感器 [THIN FILM CHIP INDUCTOR]
分类和应用: 电感器
文件页数/大小: 66 页 / 368 K
品牌: ABC [ ABC Taiwan Electronics Corp ]
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AL103 Revision 1.0  
3.14.4 Read Cycle Operation  
Read operations are initiated in the same manner as write operations, with the exception that the R/  
W bit of the EEPROM address is set to a “1.”  
Device  
Device  
Start  
Start  
Address  
Stop  
Address  
A
A
A
A
A
A
S
S
8-Bit Word Address  
S
8-Bit Data n  
EEDIO  
Acknowledge  
Acknowledge  
No Acknowledge  
Acknowledge  
Figure 7  
EEPROM Read Cycle  
3.14.5 Reprogramming the EEPROM Configuration  
There are two ways that the system can be reconfigured. Figure 8 shows an application using the  
parallel interface to reprogram the EEPROM. In this application, the parallel port holds the reset  
pins low, which forces the EEDIO pins to go into high impedance. Once the pins are in high  
impedance, the EEPROM can now be programmed by the parallel port. Once the parallel port  
releases the reset pins, the devices will start to download the EEPROM data and reconfigure the  
devices.  
An alternate way of reconfiguring the system is to directly change the register settings of the  
AL103. After initialization, the EEPROM interface can act as a virtual EEPROM. In order for this  
method to work, the EEPROM’s device address must be 000, while the AL103’s address will be  
100. The customer can now program the AL103 as an EEPROM. The read and write timing is the  
same as an EEPROM.  
Because you read as well as write to the AL103, the registers status can be read from the AL103.  
This will serve as a very useful tool for diagnostic of an unmanaged switch.  
9/00  
Reference Only / Allayer Communications  
31  
 
 
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