參數(shù)資料
型號: LM40
廠商: National Semiconductor Corporation
英文描述: Hardware Monitor with Dual Thermal Diodes and SensorPath Bus
中文描述: 硬件監(jiān)控雙熱二極管和SensorPath總線
文件頁數(shù): 23/27頁
文件大?。?/td> 369K
代理商: LM40
2.0 Register Set
(Continued)
Analog Input Voltage Mapping
Sensor
Number
(SNUM)
0
Voltage Input
+2.5V
Input Voltage
for Nominal
Reading
(code 384 or
180h)
2.5V
Maximum
Input Voltage
(code 510.5)
3.32V to 6V
Register
Reading at
Maximum
Voltage
1FFh
Minimum
Input Voltage
-0.5V to
3.26mV
-0.5V to
2.63mV
3.0V
Register
Reading at
Minimum
Voltage
00h
Resolution
6.51mV
1
+1.2V
1.2V
1.6V to 6V
1FFh
00h
5.86mV
2
+3.3V_SBY
(V+)
+5V
3.3V
4.39V to 6V
1FFh
15Dh
8.59mV
3
5V
6.65V
1FFh
-0.5V to
6.51mV
-0.5V to
15.63mV
00h
13.02mV
4
+12V
12V
15.95V to 16V 1FFh
00h
31.25mV
2.10.4 Voltage Control (Addr: 010 010; 12h)
This register is set to the reset value by a Device Reset.
Reg
Add
Register
Name
R/
W
P
O
R
Val
Bit
15
MSb
Bit
14
Bit
13
Bit
12
Bit
11
Bit
10
Bit
9
Bit
8
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
LSb
010 010
Voltage
Control
R/
W
1Fh
Reserved
EN4 EN3 EN2 EN1 EN0 ATE
Low Rate Function
(Read Only)
1
1
0
0
0
0
0
1
1
1
Bit
4-0
5
Type
RO
R/W
Description
Low Rate Function
ATE (Attention Enable).
When set, this bit enables an Attention Request signal to be generated by the
LM40, if one or more EN0-EN4 bits of this register are set.
0: Attention Request disabled (from enabled Temperature Sensor- default)
1: Attention Request enabled
EN0 (Enable Sensor 0).
When this bit is set, the Voltage Sensor 0 is enabled for voltage measurements.
0: Voltage Sensor disabled (default)
1: Voltage Sensor enabled
EN1-EN4 (Enable Sensor 1-4).
Same as EN0 for Voltage sensors 1-4.
0: Voltage Sensor disabled (default)
1: Voltage Sensor enabled
Reserved.
Will always read "0".
This function is not supported by the LM40 and therefore this field is read only.
6
R/W
10-7
R/W
15-11
RO
2.11 CONVERSION RATE (Addr: 100 000; 20h)
Reg Add
Register Name
R/
W
P
O
R
Val
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LSb
100 000
Conversion Rate
R/
W
2h
Reserved
0
CR1
CR0
0
0
0
0
0
Bit
1-0
Type
RO
Description
These bits control the conversion rate of the LM40 for
CR0 and CR1 (Conversion Rate bits 0 and 1)
more details see
Table Conversion Rate Control
and desciption below.
L
www.national.com
23
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