DS1922T Maxim, DS1922T Datasheet - Page 17
DS1922T
Manufacturer Part Number
DS1922T
Description
The DS1922L/T temperature logger iButtons® are rugged, self-sufficient systems that measure temperature and record the result in a protected memory section
Manufacturer
Maxim
Datasheet
1.DS1922L.pdf
(52 pages)
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Figure 6. Register Pages Map
* The left entry in the ACCESS column is valid between missions. The right entry shows the applicable access type while a
mission is in progress.
ADDRESS
020Ah
020Bh
020Ch
020Dh
0200h
0201h
0202h
0203h
0204h
0205h
0206h
0207h
0208h
0209h
020Eh
020Fh
0210h
0211h
0212h
0213h
0214h
0215h
0216h
0217h
0218h
CENT
BIT 7
BOR
______________________________________________________________________________________
0
0
0
0
0
0
1
0
1
1
Temperature Logger iButton with 8KB
Low Byte
12/24
BIT 6
0
0
0
0
1
0
1
1
1
10 Years
10 Seconds
10 Minutes
(No Function with the DS1922L/DS1922T)
(No Function with the DS1922L/DS1922T)
(No Function with the DS1922L/DS1922T)
(No Function with the DS1922L/DS1922T)
20 Hour
AM/PM
SUTA
BIT 5
0
0
1
0
1
0
10 Date
10 Hour
Months
WFTA
BIT 4
High Threshold
Low Threshold
RO
10
Center Byte
0
0
1
0
1
High Byte
High Byte
Low Byte
Low Byte
MEMCLR
BIT 3
(X)
0
0
1
0
0
High Byte
Single Seconds
BIT 2
Single Minutes
TLFS
Single Months
Single Hours
Single Years
Single Date
0
0
1
0
0
0
ETHA
EHSS
BIT 1
THF
MIP
0
0
0
Data-Log Memory
EOSC
BIT 0
ETLA
ETL
TLF
0
0
0
Alarm Status
Temperature
Temperature
Temperature
RTC Control
Time Clock
FUNCTION
Registers
Mission
Counter
General
Sample
Alarms
Control
Enable
Latest
Alarm
Status
Delay
Real-
Rate
Start
—
—
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ACCESS*
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
17
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