Zilog EZ80F91 - Manual (Page 76)

eZ80F91 Development Kit
User Manual
UM014220-0508 Appendix A—General Array Logic Equations
71
assign nAN_WR =
~((nDIS_EM==1)&(nWR==0)&(nEM_EN==0)&(address==anode));
assign nCT_WR =
~((nDIS_EM==1)&(nWR==0)&(nEM_EN==0)&(address==cathode));
assign nDIS_ETH = ~(nCS);
endmodule