am29lv160d.v

在逻辑的系统仿真中使用的FLASH模型（AMD的Am29lv160d）

    //FSM control signals
    reg ULBYPASS ; ////Unlock Bypass Active
    reg ESP_ACT  ; ////Erase Suspend

    reg PDONE    ; ////Prog. Done
    reg PSTART   ; ////Start Programming
    //Program location is in protected sector
    reg PERR     ;

    reg EDONE    ; ////Ers. Done
    reg ESTART   ; ////Start Erase
    reg ESUSP    ; ////Suspend Erase
    reg ERES     ; ////Resume Erase
    //All sectors selected for erasure are protected
    reg EERR     ;

    //Sectors selected for erasure
    reg [SecNum:0] Ers_queue; // = SecNum'b0;
    reg [SubSecNum:0] Ers_sub_queue;

    //Command Register
    reg write ;
    reg read  ;

    //Sector Address
    integer SecAddr = 0;         // 0 - SecNum
    integer SubSect = 0;         // 0 - SubSecNum
    integer SA      = 0;         // 0 TO SecNum
    integer SSA     = 0;         // 0 TO SubSecNum  
    //Address within sector
    integer Address = 0;         // 0 - SecSize


    integer D_tmp0; //0 TO MaxData;
    integer D_tmp1; //0 TO MaxData;

    //A19:A11 Don't Care
    integer Addr ;         //0 TO 16'h7FF# 

    //glitch protection
    wire gWE_n ;
    wire gCE_n ;
    wire gOE_n ;

    reg RST ;
    reg reseted ;

    integer Mem[0:MemSize];
    //Sector Protection Status
    reg [SecNum:0] Sec_Prot; //= SecNum'b0;
    //Sector Protection for first 4 sectors
    //or last 4, depending on chosen model
    reg [SubSecNum:0] SubSec_Prot;

    integer CFI_array[16:90]; 

    // timing check violation
    reg Viol = 1'b0;

    //Address of variable size sector (bottom or top boot sector)
    integer VarSect = -1;
    reg     vs;

    integer WBData[0:1];
    integer WBAddr[0:1];

    reg oe = 1'b0;
    event oe_event;

    event initOK;
    event MergeE;

    //Status reg.
    reg[7:0] Status = 8'b0;

    reg[7:0]  old_bit, new_bit;
    integer old_int, new_int;
    integer wr_cnt;

    integer S_ind = 0;
    integer ind = 0;

    reg[7:0] temp;          
    
    integer i,j,k;

   //TPD_XX_DATA
   time OEDQ_t;
   time CEDQ_t;
   time OENeg_event;
   time CENeg_event;
   reg FROMOE;
   reg FROMCE;
   reg SWITCH;

   integer   OEDQ_01;
   integer   CEDQ_01;

///////////////////////////////////////////////////////////////////////////////
//Interconnect Path Delay Section
///////////////////////////////////////////////////////////////////////////////

    buf   (A19_ipd, A19);
    buf   (A18_ipd, A18);
    buf   (A17_ipd, A17);
    buf   (A16_ipd, A16);
    buf   (A15_ipd, A15);
    buf   (A14_ipd, A14);
    buf   (A13_ipd, A13);
    buf   (A12_ipd, A12);
    buf   (A11_ipd, A11);
    buf   (A10_ipd, A10);
    buf   (A9_ipd , A9 );
    buf   (A8_ipd , A8 );
    buf   (A7_ipd , A7 );
    buf   (A6_ipd , A6 );
    buf   (A5_ipd , A5 );
    buf   (A4_ipd , A4 );
    buf   (A3_ipd , A3 );
    buf   (A2_ipd , A2 );
    buf   (A1_ipd , A1 );
    buf   (A0_ipd , A0 );

    buf   (DQ15_ipd, DQ15);
    buf   (DQ14_ipd, DQ14);
    buf   (DQ13_ipd, DQ13);
    buf   (DQ12_ipd, DQ12);
    buf   (DQ11_ipd, DQ11);
    buf   (DQ10_ipd, DQ10);
    buf   (DQ9_ipd , DQ9 );
    buf   (DQ8_ipd , DQ8 );
    buf   (DQ7_ipd , DQ7 );
    buf   (DQ6_ipd , DQ6 );
    buf   (DQ5_ipd , DQ5 );
    buf   (DQ4_ipd , DQ4 );
    buf   (DQ3_ipd , DQ3 );
    buf   (DQ2_ipd , DQ2 );
    buf   (DQ1_ipd , DQ1 );
    buf   (DQ0_ipd , DQ0 );

    buf   (CENeg_ipd    , CENeg    );
    buf   (OENeg_ipd    , OENeg    );
    buf   (WENeg_ipd    , WENeg    );
    buf   (RESETNeg_ipd , RESETNeg );
    buf   (BYTENeg_ipd  , BYTENeg  );

///////////////////////////////////////////////////////////////////////////////
// Propagation  delay Section
///////////////////////////////////////////////////////////////////////////////
    nmos   (DQ15,   DQ15_zd , 1);
    nmos   (DQ14,   DQ14_zd , 1);
    nmos   (DQ13,   DQ13_zd , 1);
    nmos   (DQ12,   DQ12_zd , 1);
    nmos   (DQ11,   DQ11_zd , 1);
    nmos   (DQ10,   DQ10_zd , 1);
    nmos   (DQ9 ,   DQ9_zd  , 1);
    nmos   (DQ8 ,   DQ8_zd  , 1);
    nmos   (DQ7 ,   DQ7_zd  , 1);
    nmos   (DQ6 ,   DQ6_zd  , 1);
    nmos   (DQ5 ,   DQ5_zd  , 1);
    nmos   (DQ4 ,   DQ4_zd  , 1);
    nmos   (DQ3 ,   DQ3_zd  , 1);
    nmos   (DQ2 ,   DQ2_zd  , 1);
    nmos   (DQ1 ,   DQ1_zd  , 1);
    nmos   (DQ0 ,   DQ0_zd  , 1);

    nmos   (RY  ,   1'b0    , ~RY_zd);

    wire deg;

specify

        // tipd delays: interconnect path delays , mapped to input port delays.
        // In Verilog is not necessary to declare any tipd_ delay variables,
        // they can be taken from SDF file
        // With all the other delays real delays would be taken from SDF file

    // tpd delays

    specparam           tpd_A0_DQ0              =1;
    specparam           tpd_A0_DQ1              =1;
    specparam           tpd_A0_DQ2              =1;
    specparam           tpd_A0_DQ3              =1;
    specparam           tpd_A0_DQ4              =1;
    specparam           tpd_A0_DQ5              =1;
    specparam           tpd_A0_DQ6              =1;
    specparam           tpd_A0_DQ7              =1;
    specparam           tpd_A0_DQ8              =1;
    specparam           tpd_A0_DQ9              =1;
    specparam           tpd_A0_DQ10              =1;
    specparam           tpd_A0_DQ11              =1;
    specparam           tpd_A0_DQ12              =1;
    specparam           tpd_A0_DQ13              =1;
    specparam           tpd_A0_DQ14              =1;
    specparam           tpd_A0_DQ15              =1;
    specparam           tpd_A1_DQ0              =1;
    specparam           tpd_A1_DQ1              =1;
    specparam           tpd_A1_DQ2              =1;
    specparam           tpd_A1_DQ3              =1;
    specparam           tpd_A1_DQ4              =1;
    specparam           tpd_A1_DQ5              =1;
    specparam           tpd_A1_DQ6              =1;
    specparam           tpd_A1_DQ7              =1;
    specparam           tpd_A1_DQ8              =1;
    specparam           tpd_A1_DQ9              =1;
    specparam           tpd_A1_DQ10              =1;
    specparam           tpd_A1_DQ11              =1;
    specparam           tpd_A1_DQ12              =1;
    specparam           tpd_A1_DQ13              =1;
    specparam           tpd_A1_DQ14              =1;
    specparam           tpd_A1_DQ15              =1;
    specparam           tpd_A2_DQ0              =1;
    specparam           tpd_A2_DQ1              =1;
    specparam           tpd_A2_DQ2              =1;
    specparam           tpd_A2_DQ3              =1;
    specparam           tpd_A2_DQ4              =1;
    specparam           tpd_A2_DQ5              =1;
    specparam           tpd_A2_DQ6              =1;
    specparam           tpd_A2_DQ7              =1;
    specparam           tpd_A2_DQ8              =1;
    specparam           tpd_A2_DQ9              =1;
    specparam           tpd_A2_DQ10              =1;
    specparam           tpd_A2_DQ11              =1;
    specparam           tpd_A2_DQ12              =1;
    specparam           tpd_A2_DQ13              =1;
    specparam           tpd_A2_DQ14              =1;
    specparam           tpd_A2_DQ15              =1;
    specparam           tpd_A3_DQ0              =1;
    specparam           tpd_A3_DQ1              =1;
    specparam           tpd_A3_DQ2              =1;
    specparam           tpd_A3_DQ3              =1;
    specparam           tpd_A3_DQ4              =1;
    specparam           tpd_A3_DQ5              =1;
    specparam           tpd_A3_DQ6              =1;
    specparam           tpd_A3_DQ7              =1;
    specparam           tpd_A3_DQ8              =1;
    specparam           tpd_A3_DQ9              =1;
    specparam           tpd_A3_DQ10              =1;
    specparam           tpd_A3_DQ11              =1;
    specparam           tpd_A3_DQ12              =1;
    specparam           tpd_A3_DQ13              =1;
    specparam           tpd_A3_DQ14              =1;
    specparam           tpd_A3_DQ15              =1;
    specparam           tpd_A4_DQ0              =1;
    specparam           tpd_A4_DQ1              =1;
    specparam           tpd_A4_DQ2              =1;
    specparam           tpd_A4_DQ3              =1;
    specparam           tpd_A4_DQ4              =1;
    specparam           tpd_A4_DQ5              =1;
    specparam           tpd_A4_DQ6              =1;
    specparam           tpd_A4_DQ7              =1;
    specparam           tpd_A4_DQ8              =1;
    specparam           tpd_A4_DQ9              =1;
    specparam           tpd_A4_DQ10              =1;
    specparam           tpd_A4_DQ11              =1;
    specparam           tpd_A4_DQ12              =1;
    specparam           tpd_A4_DQ13              =1;
    specparam           tpd_A4_DQ14              =1;
    specparam           tpd_A4_DQ15              =1;
    specparam           tpd_A5_DQ0              =1;
    specparam           tpd_A5_DQ1              =1;
    specparam           tpd_A5_DQ2              =1;
    specparam           tpd_A5_DQ3              =1;
    specparam           tpd_A5_DQ4              =1;
    specparam           tpd_A5_DQ5              =1;
    specparam           tpd_A5_DQ6              =1;
    specparam           tpd_A5_DQ7              =1;
    specparam           tpd_A5_DQ8              =1;
    specparam           tpd_A5_DQ9              =1;
    specparam           tpd_A5_DQ10              =1;
    specparam           tpd_A5_DQ11              =1;
    specparam           tpd_A5_DQ12              =1;
    specparam           tpd_A5_DQ13              =1;
    specparam           tpd_A5_DQ14              =1;
    specparam           tpd_A5_DQ15              =1;
    specparam           tpd_A6_DQ0              =1;
    specparam           tpd_A6_DQ1              =1;
    specparam           tpd_A6_DQ2              =1;
    specparam           tpd_A6_DQ3              =1;
    specparam           tpd_A6_DQ4              =1;
    specparam           tpd_A6_DQ5              =1;
    specparam           tpd_A6_DQ6              =1;
    specparam           tpd_A6_DQ7              =1;
    specparam           tpd_A6_DQ8              =1;
    specparam           tpd_A6_DQ9              =1;
    specparam           tpd_A6_DQ10              =1;
    specparam           tpd_A6_DQ11              =1;
    specparam           tpd_A6_DQ12              =1;
    specparam           tpd_A6_DQ13              =1;
    specparam           tpd_A6_DQ14              =1;
    specparam           tpd_A6_DQ15              =1;
    specparam           tpd_A7_DQ0              =1;
    specparam           tpd_A7_DQ1              =1;
    specparam           tpd_A7_DQ2              =1;
    specparam           tpd_A7_DQ3              =1;
    specparam           tpd_A7_DQ4              =1;
    specparam           tpd_A7_DQ5              =1;
    specparam           tpd_A7_DQ6              =1;
    specparam           tpd_A7_DQ7              =1;
    specparam           tpd_A7_DQ8              =1;
    specparam           tpd_A7_DQ9              =1;
    specparam           tpd_A7_DQ10              =1;
    specparam           tpd_A7_DQ11              =1;
    specparam           tpd_A7_DQ12              =1;
    specparam           tpd_A7_DQ13              =1;
    specparam           tpd_A7_DQ14              =1;
    specparam           tpd_A7_DQ15              =1;
    specparam           tpd_A8_DQ0              =1;
    specparam           tpd_A8_DQ1              =1;
    specparam           tpd_A8_DQ2              =1;
    specparam           tpd_A8_DQ3              =1;
    specparam           tpd_A8_DQ4              =1;
    specparam           tpd_A8_DQ5              =1;
    specparam           tpd_A8_DQ6              =1;
    specparam           tpd_A8_DQ7              =1;
    specparam           tpd_A8_DQ8              =1;
    specparam           tpd_A8_DQ9              =1;
    specparam           tpd_A8_DQ10              =1;
    specparam           tpd_A8_DQ11              =1;
    specparam           tpd_A8_DQ12              =1;
    specparam           tpd_A8_DQ13              =1;
    specparam           tpd_A8_DQ14              =1;
    specparam           tpd_A8_DQ15              =1;
    specparam           tpd_A9_DQ0              =1;
    specparam           tpd_A9_DQ1              =1;
    specparam           tpd_A9_DQ2              =1;
    specparam           tpd_A9_DQ3              =1;
    specparam           tpd_A9_DQ4              =1;
    specparam           tpd_A9_DQ5              =1;
    specparam           tpd_A9_DQ6              =1;
    specparam           tpd_A9_DQ7              =1;