Answers Database

XC5200: Express Mode Bitstream loaded to the same pins as Peripheral Download.


Record #885

Product Family:  Hardware

Product Line:  5200

Problem Title:
XC5200:	Express Mode Bitstream loaded to the same pins as Peripheral
Download.



Problem Description:



Solution 1:

The 5200 Express configuration mode downloads data at a frequency of a byte per
configuration clock.  The order this byte is downloaded is the same as it would
be
downloaded in Peripheral Configuration Mode.  The MSB of the Bit File goes to D0

and the LSB of each of the bit file goes to D7.

For Example:
The First two bytes of data in the 5200 bit file are:
The Fill Byte:	  11111111
The Preamble:  11110010
Therefore the first byte of data would be:
D0=1 , D1=1, D2=1, D3=1, D4=1, D5=1, D6=1, D7=1
And the second byte of data would be:
D0=1 , D1=1, D2=1, D3=1, D4=0, D5=0, D6=1, D7=0



End of Record #885