Datasheet

DS2413: 1-Wire Dual Channel Addressable Switch
7 of 18
Figure 6. PIO Function Flow Chart
To ROM Functions
Flow Chart (Figure 10)
Bus Master TX Memory
Function Command
From ROM Functions
Flow Chart (Figure 10)
Y
F5h
PIO Access
Read?
Y
N
Master
TX Reset?
Bus Master RX
PIO Pin Status
Y
N
5Ah
PIO Access
Write?
Bus Master TX new
PIO Output Data Byte
Bus Master TX
inverted new PIO
Output Data B
y
te
Transmission
OK?
DS2413 Updates
PIO Output Latch
Bus Master RX
Confirmation AAh
DS2413 Samples
PIO Pin Status
Bus Master RX
PIO Pin Status
Y
N
Master
TX Reset?
N
Y
Bus Master
RX “1”s
Y
N
Master
TX Reset?
Note 1)
See the command
description for the
exact timing of the
PIO pin sampling
and updating.
N
Y
DS2413 Samples
PIO Pin Status
1
)
1
)
1
)