DS2413 Maxim, DS2413 Datasheet - Page 16

• Manufacturer Part Number: DS2413
• Description: The DS2413 is a dual-channel programmable I/O 1-Wire® chip
• Manufacturer: Maxim

Figure 13. Noise Suppression Scheme
COMMAND-SPECIFIC 1-Wire COMMUNICATION PROTOCOL—LEGEND
COMMAND-SPECIFIC 1-Wire COMMUNICATION PROTOCOL—COLOR CODES
PIO ACCESS READ (CANNOT FAIL)
PIO ACCESS WRITE (SUCCESS)
PIO ACCESS WRITE (
Master to slave
RST
RST
RST
V
HY
V
V
PUP
0V
SYMBOL
TH
FF loop
Select
PIOW
PIOR
RST
PD
PD
PD
PD
Select
Select
Select
Slave to master
Case A
1-Wire Reset Pulse generated by master.
1-Wire Presence Pulse generated by slave.
Command and data to satisfy the ROM function protocol.
Command "PIO Access Read".
Command "PIO Access Write".
Indefinite loop where the master reads FF bytes.
PIOR
PIOW
PIOW
INVALID DATA BYTE
<PIO Status Byte>
<PIO Output data>
<PIO Output data>
Continues until master sends Reset Pulse
t
GL
Case B
t
REH
16 of 18
Loop until master sends Reset Pulse
)
<PIO Output data>
<invalid data byte>
DESCRIPTION
t
REH
t
Case C
GL
<AAh>
FF loop
<PIO Status Byte>