ds2423 Maxim Integrated Products, Inc., ds2423 Datasheet - Page 10

• Manufacturer Part Number: ds2423
• Description: Ds2423 4kbit 1-wire Ram With Counter
• Manufacturer: Maxim Integrated Products, Inc.

MEMORY FUNCTION FLOW CHART Figure 7 cont’d
From Figure 7
To Figure 7
1
1
st
st
RX "1"s
Part
Part
Master
N
N
DS2423 Copies Scratchpad
1)
Data to Memory
DS2423 TX "0"
DS2423 TX "1"
Code Match?
Authorization
TA2 (T15:T8)
TA1 (T7:T0)
Scratchpad
TX Reset?
TX Reset?
Master TX
Master TX
Master TX
E/S Byte
Finished
Copying
AA = 1
Master
Master
Copy
1) To be transmitted or received at Overdrive speed if OD = 1.
2) Reset Pulse to be transmitted at Overdrive speed if OD = 1.
55H
Reset Pulse to be transmitted at normal speed if OD = 0 or if
the DS2423 is to be reset from Overdrive speed to regular
speed.
Y
Y
N
Y
Y
2)
2)
1)
Y
1)
1)
TX Reset?
N
1)
N
RX "1"s
Master
Master
1)
Y
10 of 25
1)
N
ments Address
DS2423 Incre-
Counter
N
Y
from Memory Address
DS2423 sets Memory
Master RX Data Byte
Address = (T15:T0)
Master RX "0"s
TA1 (T7:T0)
TA1 (T7:T0)
TX Reset?
Master TX
Master TX
Memory?
Memory
Master
End of
Read
F0H
N
Y
Y
2)
From Figure 7
1)
To Figure 7
N
3
3
1)
rd
rd
1)
1)
Part
Part