DS1923
iButton Hygrochron Temperature/Humidity
Logger with 8KB Data-Log Memory
Command-Specific 1-Wire Communication Protocol—Color Codes
Master-to-Slave
Slave-to-Master
1-Wire Communication Examples
Write Scratchpad, Reaching the End of the Scratchpad (Cannot Fail)
RST PD Select WS
TA
<Data to EOS>
CRC-16
FF Loop
Read Scratchpad (Cannot Fail)
RST PD Select RS
TA-E/S <Data to EOS>
CRC-16
FF Loop
Copy Scratchpad with Password (Success)
RST PD Select CPS TA-E/S
<PW/Dummy>
Busy
AA Loop
Copy Scratchpad with Password (Fail TA-E/S or Password)
RST PD Select CPS TA-E/S
<PW/Dummy>
FF Loop
Read Memory with Password and CRC (Success)
RST PD Select RMC TA
<PW/Dummy>
<Data to EOP>
<32 Bytes>
CRC-16
CRC-16
FF Loop
Loop
Read Memory with Password and CRC (Fail Password or Address)
RST PD Select RMC TA
<PW/Dummy>
FF Loop
Clear Memory with Password
RST PD Select CM
<PW/Dummy>
FFh
FF Loop
To verify success, read the General Status register at address 0215h. If MEMCLR is 1, the command was
executed successfully.
46
Maxim Integrated
相关PDF资料
DS1961S-F3# IBUTTON EEPROM 1KBit F3
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DS1977-F5# IBUTTON EEPROM 32KBit F5
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DS1985-F3+ IBUTTON 16KBit ADD-ONLY F3
相关代理商/技术参数
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