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Appendix E
DL305 Memory Map
E–13
DL305 Data Types and Memory Map
Data Registers
The following 8-bit data registers are primarily used with data instructions to store
various types of application data. For example, you could use a register to hold a
timer or counter preset value.
Some data instructions call for two bytes, which will correspond to two consecutive
8-bit data registers such as R401 and R400. The LSB (Least Significant Bit) will be in
register R400 as bit0 and the MSB (Most Significant Bit) will be in register R401 as
bit17.
NOTE: Data Registers are retentive.
DL330 / DL330P
8-Bit Data Registers
407 406 405 404 403 402 401 400
417 416 415 414 413 412 411 410
427 426 425 424 423 422 421 420
437 436 435 434 433 432 431 430
447 446 445 444 443 442 441 440
457 456 455 454 453 452 451 450
467 466 465 464 463 462 461 460
477 476 475 474 473 472 471 470
507 506 505 504 503 502 501 500
517 516 515 514 513 512 511 510
527 526 525 524 523 522 521 520
537 536 535 534 533 532 531 530
547 546 545 544 543 542 541 540
557 556 555 554 553 552 551 550
563 562 561 560
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