DS1961S-F5 Maxim Integrated Products, DS1961S-F5 Datasheet - Page 17

• Manufacturer Part Number: DS1961S-F5
• Description: DS1961S 1kb Protected EePROM Ibutton With SHA-1 Engine
• Manufacturer: Maxim Integrated Products

Figure 7-8. MEMORY AND SHA FUNCTIONS FLOW CHART (continued)
From Figure 7
To Figure 7
7th Part
7th Part
DS1961S Sets EN LFS = 0
TA1 (T7:T0), TA2 (T15:T8)
Read Memory ?
Bus Master TX
Address
< 98h ?
F0h
Y
N
Bus Master
RX “1”s
Increments
DS1961S
Address
Counter
Y
N
Y
N
DS1961S Sets Memory
17 of 36
Address = (T15:T0)
Memory Address
Bus Master RX
Data Byte from
TX Reset ?
TX Reset ?
Of Secret
Address
Address
< 97h ?
Master
Master
N
N
Y
N
Y
Y
RX FFh Byte
Bus Master
N
Bus Master
TX Reset ?
RX “1”s
Master
Y