Rainbow Electronics DS2506 - Manual (Page 21)

DS2506
21 of 25
READ/WRITE TIMING DIAGRAM Figure 10 (cont’d)
Write-zero Time Slot
Read-data Time Slot
NOTE:
For read-data time slots the optimal sampling point for the master is as close as possible to the end time
of the t
RDV
period without exceeding 15 µs for regular speed or 2 µs for overdrive speed. 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 level. 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).