DS1921H_12 MAXIM [Maxim Integrated Products], DS1921H_12 Datasheet - Page 19
![no-image](/images/no-image-200.jpg)
DS1921H_12
Manufacturer Part Number
DS1921H_12
Description
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
1.DS1921H_12.pdf
(45 pages)
- Current page: 19 of 45
- Download datasheet (2Mb)
MEMORY/CONTROL FUNCTION FLOW CHART Figure 10-2
From Figure 10
To Figure 10
1
1
st
st
Part
RX "1"s
Part
Master
N
N
DS1921 Copies Scratchpad
TA1 (T7:T0), TA2 (T15:T8)
Data to Memory
DS1921 TX "0"
DS1921 TX "1"
Code Match?
Authorization
DS1921 sets
Scratchpad
EMCLR = 0
TX Reset?
TX Reset?
Master TX
Master TX
Finished
E/S Byte
Copying
AA = 1
Master
Master
Copy
55H
Y
Y
N
Y
Y
Y
N
N
TX Reset?
RX "1"s
Master
Master
Y
19 of 45
N
ments Address
DS1921 Incre-
Counter
N
TA1 (T7:T0), TA2 (T15:T8)
Y
from Memory Address
DS1921 sets Memory
Master RX Data Byte
Address = (T15:T0)
Master RX "0"s
DS1921 sets
EMCLR = 0
TX Reset?
Master TX
Memory?
Memory
Master
End of
Read
F0H
N
Y
Y
From Figure 10
To Figure 10
N
3
3
rd
rd
Part
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