參數(shù)資料
型號: DS2422S
英文描述: 1-Wire Temperature/Datalogger with 8kB Datalog Memory
中文描述: 1 - Wire溫度/數(shù)據(jù)記錄器與8kB的數(shù)據(jù)記錄存儲器
文件頁數(shù): 48/48頁
文件大?。?/td> 444K
代理商: DS2422S
DS2422
48 of 48
MASTER MODE
TX
TX
RX
TX
TX
RX
RX
RX
RX
TX
RX
TX
TX
TX
TX
TX
TX
TX
RX
DATA (LSB FIRST)
<7 FFh bytes>
(Reset)
(Presence)
CCh
AAh
00h
02h
1Fh
<32 data bytes>
(Reset)
(Presence)
CCh
99h
00h
02h
1Fh
<8 FFh bytes>
(Reset)
(Presence)
COMMENTS
Write through the end of the scratchpad
Reset pulse
Presence pulse
Issue “skip ROM” command
Issue “read scratchpad” command
Read TA1, beginning offset=00h
Read TA2, address=0200h
Read E/S, ending offset=1Fh, flags=0h
Read scratchpad data and verify
Reset pulse
Presence pulse
Issue “skip ROM” command
Issue “copy scratchpad” command
TA1
TA2
(AUTHORIZATION CODE)
E/S
Send dummy password
Reset pulse
Presence pulse
STEP 3
Start the new mission.
With only a single DS2422 connected to the bus master, the communication of step 3 looks like this:
MASTER MODE
TX
RX
TX
TX
TX
TX
TX
RX
DATA (LSB FIRST)
(Reset)
(Presence)
CCh
CCh
<8 FFh bytes>
FFh
(Reset)
(Presence)
COMMENTS
Reset pulse
Presence pulse
Issue “skip ROM” command
Issue “start mission” command
Send dummy password
Send dummy byte
Reset pulse
Presence pulse
If step 3 was successful, the MIP bit in the General Status Register will be 1, the MEMCLR bit will be 0 and the
mission start delay will count down.
PACKAGE INFORMATION
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to
www.maxim-ic.com/DallasPackInfo
.)
相關(guān)PDF資料
PDF描述
DS2482-800 Eight-Channel 1-Wire Master
DS2482-100 Single-Channel 1-Wire Master
DS2482S-100 Single-Channel 1-Wire Master
DS2482S-800 Eight-Channel 1-Wire Master
DS2502-E48 48-Bit Node Address Chip
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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