I'm trying to program an Xilinx XC4010 on an XS40 board, using the UART of the the 8031. I read the Intel datasheet, and i have a BIG problem. 8031 hasn't a internal program memory and to use an external program memory you must use the /PSEN pin for WO. but the problem is that pin connects directy with the FPGA and I have to program that FPGA using the 8031 .
I anyone can help me please reply.

thank you,
Petre Pircalabu