AN1154 STMicroelectronics, AN1154 Datasheet - Page 62

• Manufacturer Part Number: AN1154
• Description: 8031-PSD DESIGN TUTORIAL
• Manufacturer: STMicroelectronics

AN1154 - APPLICATION NOTE
parameter Port_B_Dir_Reg=’h0907,Port_B_Cntl_Reg =’h0903;
parameter Port_B_Dout_Reg=’h0905,Port_B_Din_Reg =’h0901;
parameter Port_B_IMC=’h090B,Port_B_Drive_Sel = ’h0909;
parameter Port_B_En_Out=’h090D;
//Port C
parameter Port_C_Dir_Reg=’h0914,Port_C_En_Out =’h091A;
parameter Port_C_Dout_Reg=’h0912,Port_C_Din_Reg =’h0910;
parameter Port_C_IMC=’h0918,Port_C_Drive_Sel = ’h0916;
//Port D
parameter Port_D_Dir_Reg=’h0915,Port_D_Drive_Sel =’h0917;
parameter Port_D_Dout_Reg=’h0913,Port_D_Din_Reg =’h0911;
parameter Port_D_En_Out=’h091B;
//Port AB OMCs
parameter Port_AB_OMC=’h0920,Port_AB_OMC_Mask = ’h0922;
//Port BC OMCs
parameter Port_BC_OMC=’h0921,Port_BC_OMC_Mask = ’h0923;
//Other control registers
parameter FLASH_Protect=’h09C0,EEPROM_Protect = ’h09C2;
parameter PMMR0_Reg=’h09B0,PMMR1_Reg =’h09B2;
parameter PMMR2_Reg=’h09B4,JTAG_En = ’h09C4;
parameter Page_Reg=’h09E0,VM_Reg
=’h09E2;
//
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++
// Defining tasks to simulate 80C31 bus cycles (read, write and psen bus cycles).
// Note that the cycles are shortened for simulation purposes, but the
functionality
// remains the same.
//
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++
//The "write task" implements the 80C31 write bus cycle
task write;
input [15:0] addr_bus;
input [7:0] data_in;
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