se98pw NXP Semiconductors, se98pw Datasheet - Page 17

• Manufacturer Part Number: se98pw
• Description: Se98 So-dimm Smbus/i2c-bus Temperature Sensor
• Manufacturer: NXP Semiconductors

NXP Semiconductors
SE98_2
Product data sheet
8.5.2 Lower Boundary Alarm Trip register (16-bit read/write)
8.5.3 Critical Alarm Trip register (16-bit read/write)
The value is the lower threshold temperature value for Alarm mode. The data format is
2’s complement with bit 2 = 0.25 C. RFU bits will always report zero. Interrupts will
respond to the presently programmed boundary values. If boundary values are being
altered in-system, it is advised to turn off interrupts until a known state can be obtained to
avoid superfluous interrupt activity.
Table 12.
Table 13.
The value is the critical temperature. The data format is 2’s complement with
bit 2 = 0.25 C. RFU bits will always report zero.
Table 14.
Table 15.
Bit
Symbol
Reset
Access
Bit
15:13
12
11:2
1:0
Bit
Symbol
Reset
Access
Bit
15:13
12
11:2
1:0
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Symbol
RFU
SIGN
LBT
RFU
Symbol
RFU
SIGN
CT
RFU
Lower Boundary Alarm Trip register bit allocation
Lower Boundary Alarm Trip register bit description
Lower Boundary Alarm Trip register bit allocation
Critical Alarm Trip register bit description
R/W
R/W
15
15
R
R
0
0
7
0
7
0
Rev. 02 — 7 January 2008
RFU
RFU
R/W
R/W
14
14
R
R
0
0
6
0
6
0
Description
reserved; always 0
Sign (MSB)
Lower Boundary Alarm Trip Temperature (LSB = 0.25 C)
reserved; always 0
Description
reserved; always 0
Sign (MSB)
Critical Alarm Trip Temperature (LSB = 0.25 C)
reserved; always 0
R/W
R/W
13
13
R
R
0
0
5
0
5
0
LBT[5:0]
CT[5:0]
SO-DIMM SMBus/I
SIGN
SIGN
R/W
R/W
R/W
R/W
12
12
0
0
4
0
4
0
R/W
R/W
R/W
R/W
11
11
0
0
3
0
3
0
2
C-bus temperature sensor
R/W
R/W
R/W
R/W
10
10
0
0
2
0
2
0
LBT[9:6]
CT[9:6]
© NXP B.V. 2008. All rights reserved.
R/W
R/W
9
0
R
9
0
R
1
0
1
0
RFU
RFU
SE98
R/W
R/W
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8
0
8
0
R
R
0
0
0
0