User`s manual

288 fop <= ‘FLASHOP_READ;

289 state <= HOME;

290 end

291

292 default:

293 begin

294 status <= ‘STATUS_BAD_MANUFACTURER;

295 faddress <= 0;

296 state <= HOME;

297 end

298

299 endcase

300 else

301 fop <= ‘FLASHOP_IDLE;

302

303 function [39:0] nib2char;

304 input [3:0] nib;

305 begin

306 case (nib)

307 4’h0: nib2char = 40’b00111110_01010001_01001001_01000101_00111110;

308 4’h1: nib2char = 40’b00000000_01000010_01111111_01000000_00000000;

309 4’h2: nib2char = 40’b01100010_01010001_01001001_01001001_01000110;

310 4’h3: nib2char = 40’b00100010_01000001_01001001_01001001_00110110;

311 4’h4: nib2char = 40’b00011000_00010100_00010010_01111111_00010000;

312 4’h5: nib2char = 40’b00100111_01000101_01000101_01000101_00111001;

313 4’h6: nib2char = 40’b00111100_01001010_01001001_01001001_00110000;

314 4’h7: nib2char = 40’b00000001_01110001_00001001_00000101_00000011;

315 4’h8: nib2char = 40’b00110110_01001001_01001001_01001001_00110110;

316 4’h9: nib2char = 40’b00000110_01001001_01001001_00101001_00011110;

317 4’hA: nib2char = 40’b01111110_00001001_00001001_00001001_01111110;

318 4’hB: nib2char = 40’b01111111_01001001_01001001_01001001_00110110;

319 4’hC: nib2char = 40’b00111110_01000001_01000001_01000001_00100010;

320 4’hD: nib2char = 40’b01111111_01000001_01000001_01000001_00111110;

321 4’hE: nib2char = 40’b01111111_01001001_01001001_01001001_01000001;

322 4’hF: nib2char = 40’b01111111_00001001_00001001_00001001_00000001;

323 endcase

324 end

325 endfunction

326

327 wire [159:0] data_dots;

328 assign data_dots = {nib2char(frdata[15:12]), nib2char(frdata[11:8]),

329 nib2char(frdata[7:4]), nib2char(frdata[3:0])};

330

331 wire [239:0] address_dots;

332 assign address_dots = {nib2char({ 1’b0, faddress[22:20]}),

333 nib2char(faddress[19:16]),