Rainbow-electronics DS1972 Instrukcja Użytkownika Pobierz pdf (Strona 10)

DS1972: 1024-Bit EEPROM iButton

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Figure 7-2. Memory Function Flow Chart (continued)

AAh

Read Scratch-

Pad ?

DS1972 sets Scratchpad

Byte Counter = T2:T0

Bus Master RX

TA1 (T7:T0), TA2 (T15:T8)

and E/S Byte

Bus Master RX

Data Byte from Scratchpad

Bus Master RX CRC16

of Command, Address,

E/S Byte, Data Bytes as

sent by the DS1972

Master

TX Reset ?

Bus Master

RX “1”s

Master

TX Reset ?

DS1972

Increments

te Counter

Byte Counter

= E2:E0 ?

From Figure 7

Part

To Figure 7

Part

To Figure 7

Part

From Figure 7

Part

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 22 23

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Rainbow-electronics DS1972 Instrukcja Użytkownika Strona 10