module ev552mmu;
   ev552mmu device 'p16v8';
   declarations
   U245_DIR     pin 14 istype 'com';
   U245_G       pin 12 istype 'com';
   ROM_OE       pin 17 istype 'com';
   RAM_WE       pin 18 istype 'com';
   RAM_OE       pin 19 istype 'com';
   U573_CLK     pin 13 istype 'com';
      
   uP_ALE       pin 7;
   uP_PSEN      pin 5;
   uP_A15       pin 6;
   uP_RD        pin 4;
   uP_WR        pin 2;
   uP_P5        pin 3;
   uP_P4        pin 1;
   equations

   U245_DIR     = 0;
   U573_CLK = (!uP_P4 & !uP_WR & uP_A15) # (uP_P4 & !uP_WR & !uP_A15 );
   U245_G = !((!uP_P4 & !uP_RD & uP_A15) # (uP_P4 & !uP_RD & !uP_A15));
   RAM_OE = !((uP_P4 & !uP_RD & uP_A15) # (!uP_P4 & !uP_RD & !uP_A15)
         # (!uP_P5 & !uP_PSEN & !uP_A15));
   RAM_WE = !((uP_P4 & !uP_WR & uP_A15) # (!uP_P4 & !uP_WR & !uP_A15 ));
   ROM_OE = !((uP_P5 & !uP_PSEN) # (!uP_PSEN & uP_A15 ));
   end