Rainbow Electronics DS2422 - Manual (Page 30)

DS2422
30 of 48
Figure 12-3. Memory/Control Function Flow Chart
69H
Read Mem.
[w/PW]&CRC
Master TX
64-Bits [Password]
Master
TX Reset?
CRC OK?
Master RX "1"s
DS2422 sets Memory
Address = (T15:T0)
Master RX Data Byte
from Memory Address
Master TX
TA1 (T7:T0), TA2 (T15:T8)
Password
Accepted?
DS2422 Incre-
ments Address
Counter
End of Page?
Master RX CRC16 of
Command, Address, Data
(1
st Pass); CRC16 of Data
(Subsequent Passes)
End of
Memory?
Master TX
Reset?
Master TX
Reset
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
Decision made
by DS2422
Decision made
by Master
From Figure 12
4 th Part
To Figure 12
4 th Part
To Figure 12
2 nd Part
From Figure 12
2 nd Part