DS1921H/Z
MEMORY/CONTROL FUNCTION FLOW CHART Figure 10-3
From Figure 10
To Figure 10
th Part
nd Part
4
A5H
N
2
Read Mem.
w/CRC
Y
DS1921 sets
EMCLR = 0
Master TX
TA1 (T7:T0), TA2 (T15:T8)
Decision made
by DS1921
DS1921 sets Memory
Address = (T15:T0)
Y
End of
Memory?
Decision made
by Master
N
Master RX
00 Byte
Master RX Data Byte
from Memory Address
DS1921 Incre-
ments Address
Counter
Y
Master
TX Reset?
N
N
End of Page?
Y
Master RX CRC16 of
Command, Address, Data
(1st Pass); CRC16 of Data
(Subsequent Passes)
Y
CRC OK?
N
Master TX
Reset
To Figure 10
2nd Part
From Figure 10
4th Part
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