Rainbow-electronics DS2505 Manuel d'utilisateur télécharger pdf (Page 20)

DS2505

20 of 24

READ/WRITE TIMING DIAGRAM Figure 10 (cont’d)

NOTE:

For read-data time slots the optimal sampling point for the master is as close as possible to the end of the

RDV

period without exceeding the 15 µs window. For the case of a read-one time slot, this maximizes the

amount of time for the pull-up resistor to recover the line to a high land. For a read-zero time slot it

ensures that a read will occur before the fastest 1-Wire device releases the line (t

RELEASE

= 0).

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Rainbow-electronics DS2505 Manuel d'utilisateur Page 20