We are using National's DP83865DVH in our design. For boundary scan, we are using BSDL model from National Semi-conductor. During boundary scan, when I use DP83865DVH from lot number (VS542AC), the device ID fetched by JTAG tool is 0x1801701F matching with the BSDL. But, when I use DP83865DVH from Lot number (VS925RA), the device id fetch by boundary scan tool is 0x0801701F not matching with the BSDL model. Please Guide. The BSDL works fine for chip with ID 0x1801701F but does not work for 0x0801701F. ]