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A--9
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