emc1403 Standard Microsystems Corp., emc1403 Datasheet - Page 40

• Manufacturer Part Number: emc1403
• Description: 1 Degree C Temperature Sensor With Beta Compensation
• Manufacturer: Standard Microsystems Corp.

ADDR.
APPLICATION NOTE: When measuring a 65nm Intel CPUs, the Ideality Setting should be the default 12h. When
Revision 1.30 (05-06-08)
6.15
35h
6.16
ADDR.
36h
SETTING
13h
14h
15h
16h
17h
R-C
R/W
R-C
R/W
The High Limit Status Register contains the status bits that are set when a temperature channel high
limit is exceeded. If any of these bits are set, then the HIGH status bit in the Status Register is set.
Reading from the High Limit Status Register will clear all bits if. Reading from the register will also
clear the HIGH status bit in the Status Register.
The ALERT pin will be set if the programmed number of consecutive alert counts have been met and
any of these status bits are set.
The status bits will remain set until read unless the ALERT pin is configured as a comparator output
(see
Bit 3 - E3HIGH - This bit is set when the External Diode 3 channel exceeds its programmed high limit.
Bit 2 - E2HIGH - This bit is set when the External Diode 2 channel exceeds its programmed high limit.
Bit 1 - E1HIGH - This bit is set when the External Diode 1 channel exceeds its programmed high limit.
Bit 0 - IHIGH - This bit is set when the Internal Diode channel exceeds its programmed high limit.
The Low Limit Status Register contains the status bits that are set when a temperature channel drops
below the low limit. If any of these bits are set, then the LOW status bit in the Status Register is set.
Reading from the Low Limit Status Register will clear all bits. Reading from the register will also clear
the LOW status bit in the Status Register.
High Limit Status Register
Low Limit Status Register
Table 6.19 Substrate Diode Ideality Factor Look-Up Table (BJT Model) (continued)
REGISTER
High Limit
Status
Section
REGISTER
Low Limit
measuring 45nm Intel CPUs, the Ideality Setting should be 15h.
FACTOR
Status
1.0013
1.0026
1.0039
1.0053
1.0066
5.3.2).
B7
-
Table 6.20 High Limit Status Register
Table 6.21 Low Limit Status Register
B7
-
B6
-
SETTING
B6
23h
24h
25h
26h
27h
-
DATASHEET
B5
-
B5
-
40
B4
-
B4
-
FACTOR
1.0226
1.0239
1.0252
1.0265
1.0278
E3HIG
E3L
B3
OW
H
B3
1°C Temperature Sensor with Beta Compensation
E2L
OW
B2
E2HIG
B2
H
SETTING
E1LOW
33h
34h
35h
36h
37h
B1
E1HIG
B1
H
SMSC EMC1403/EMC1404
ILOW
B0
IHIG
B0
H
FACTOR
1.0434
1.0447
1.0460
1.0473
1.0486
DEFAULT
Datasheet
DEFAULT
00h
00h