In SX Microcontrollers, SX/B Compiler and SX-Key Tool, xinsong wrote:

Hi, I met a problem once I am using the DLP-245SY-G which uses the SX48 controller. Actually I am using the application TOKEN 245SY. 
Every time, when I read or write the Port B, C, E, the Port D databus will go HIGH. What's the link between Port D with other Ports?

 

I don't know is the problem relating to the SX48 chip or not? 

 

Thanks.

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