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LM95241
www.ti.com
SNIS143E – AUGUST 2006 – REVISED MARCH 2013
P7
P6
P5
P4
P3
P2
P1
P0
Command
P0-P7: Command
Table 6. Register Summary
Name
Status Register
Configuration Register
Remote Diode Filter Control
Command
(Hex)
02h
03h
06h
Power-On
Default Value
(Hex)
-
00h
05h
Read/Write
RO
R/W
R/W
# of used bits
5
5
2
Comments
4 status bits and 1 busy bit
Includes conversion rate control
Controls thermal diode filter
setting
Remote Diode Model Type
30h
01h
R/W
2
Selects the 2N3904 or Intel
Select
processor on 65nm or 90nm
process thermal diode model
Remote Diode TruTherm Mode
07h
01h
6
Enables or disables TruTherm
Control
technology for Remote Diode
measurements
1-shot
0Fh
-
WO
-
Activates one conversion for all
3 channels if the chip is in
standby mode (i.e. RUN/STOP
bit = 1). Data transmitted by the
host is ignored by the LM95241.
Local Temperature MSB
Remote Temperature 1 MSB
Remote Temperature 2 MSB
10h
11h
12h
-
-
-
RO
RO
RO
8
8
8
Local Temperature LSB
Remote Temperature 1 LSB
Remote Temperature 2 LSB
Manufacturer ID
Revision ID
20h
21h
22h
FEh
FFh
-
-
-
01h
A4h
RO
RO
RO
RO
RO
2
3/5
3/5
All unused bits will report zero
All unused bits will report zero
All unused bits will report zero
STATUS REGISTER
(Read Only Address 02h):
D7
Busy
D6
D5
Reserved
D4
D3
R2TME
D2
R1TME
D1
RD2M
D0
RD1M
0
0
0
Bits
7
6-4
3
2
1
Name
Busy
Reserved
Remote 2 TruTherm Mode Enabled
(R2TME)
Remote 1 TruTherm Mode Enabled
(R1TME)
Remote Diode 2 Missing (RD2M)
Description
When set to "1" the part is converting.
Reports "0" when read.
When set to "1" indicates that the TruTherm Mode has been activated for
Remote diode 2. After being enabled TruTherm Mode will take at most one
conversion cycle to be fully active. This bit will be set even if the diode is
desconnected.
When set to "1" indicates that the TruTherm Mode has been activated for
Remote diode 1. After being enabled TruTherm Mode will take at most one
conversion cycle to be fully active. This bit will be set even if the diode is
disconnected.
When set to "1" Remote Diode 2 is missing. (See DIODE FAULT DETECTION
for further details.) Temperature Reading is FFE0h which converts to 255.875
°C if unsigned format is selected or 8000h which converts to –128.000 °C if
signed format is selected. Note, connecting a 3904 transistor to Remote 2
inputs with TruTherm mode active may also cause this bit to be set.
Copyright ? 2006–2013, Texas Instruments Incorporated
Product Folder Links: LM95241
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