Datasheet

DS2480B
23 of 32
READ MEMORY SEQUENCE
Action Sequence Host TX Host RX
Generate Reset Pulse C1 CD or ED
Set Data Mode E1 (nothing)
Skip ROM Command CC CC
Read Memory Command F0 (as sent)
Starting Address TA1 40 (as sent)
Starting Address TA2 00 (as sent)
Read 8 Bytes of Data FF (x8) (data)
Set Command Mode E3 (nothing)
Generate Reset Pulse C1 CD or ED
WRITE EPROM SEQUENCE (DS2505)
Write memory starting at address 40h
Action Sequence Host TX Host RX
Set Vpp dur. = 512µs 29 28
Generate Reset Pulse C1 CD or ED
Set Data Mode E1 (nothing)
Skip ROM Command CC (as sent)
Write Memory Command 0F (as sent)
Starting Address TA1 40 (as sent)
Starting Address TA2 00 (as sent)
*** Send Data Byte (data) (as sent)
Receive CRC16 FF (x2) CRC16
Set Command Mode E3 (nothing)
Generate Program Pulse FD response
Set Data Mode E1 (nothing)
Read Written Byte FF (data)
Go to *** to write the next byte or end the sequence as shown below
Set Command Mode E3 (nothing)
Generate Reset Pulse C1 CD or ED
TEMPERATURE CONVERSION SEQUENCE
Action Sequence Host TX Host RX
Set pullup dur. = 524ms 39 38
Generate Reset Pulse C1 CD or ED
Set Data Mode E1 (nothing)
Skip ROM Command CC (as sent)
Set Command Mode E3 (nothing)
Arm Strong Pullup EF (nothing)
Terminate Pulse F1 response
Set Data Mode E1 (nothing)
Convert Temperature 44 (as sent)
Wait for Pulse Response (nothing) response
Set Command Mode E3 (nothing)
Disarm Strong Pullup ED (nothing)
Terminate Pulse F1 response
Generate Reset Pulse C1 CD or ED