ds2423 Maxim Integrated Products, Inc., ds2423 Datasheet - Page 11

• 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
2
2
nd
nd
Part
Part
Master TX
Reset
Master RX CRC 16 of Command, Address,
1) To be transmitted or received at Overdrive speed if OD = 1.
2) Reset Pulse to be transmitted at Overdrive speed if OD = 1.
CRC 16 of Data, Counter, Zero Bits
Data, Counter, Zero Bits (1
Y
2)
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.
DS2423 Sets Memory
Value of Memory Page
Master RX 32 Zero Bits
Address = (T15:T0)
N
(Subsequent Passes)
Master RX Counter
Master RX Data
From Memory
Read Memory
TA2 (T15:T8)
TA1 (T7:T0)
Master TX
Y
Master TX
TX Reset?
+ Counter
Master
End of
Page?
TX Reset?
Memory?
Correct?
A5H
Y
End of
Master
CRC
N
Y
Y
Y
2)
11 of 25
2)
st
N
Pass)
N
1)
1)
1)
1)
1)
N
N
Master RX "1"s
1)
DS2423 Increments
Address Counter
1)
N
TX Reset?
Master
Y
2)