EMC1413 datasheet(40/52 Pages) SMSC

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Multiple Channel 1°C Temperature Sensors with Beta Compensation

Datasheet

Revision 1.41 (02-23-12)

SMSC EMC1413 / EMC1414

DATASHEET

APPLICATION NOTE: When measuring a 65nm Intel CPU, the Ideality Setting should be the default 12h. When

measuring a 45nm Intel CPU, the Ideality Setting should be 15h.

7.15

High Limit Status Register

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 Section 6.3.2).

Bit 3 - E3HIGH (EMC1414 only) - 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.

0Fh

0.9960

1Fh

1.0173

2Fh

1.0382

10h

0.9973

20h

1.0187

30h

1.0395

11h

0.9986

21h

1.0200

31h

1.0408

12h

1.0000

22h

1.0213

32h

1.0421

13h

1.0013

23h

1.0226

33h

1.0434

14h

1.0026

24h

1.0239

34h

1.0447

15h

1.0039

25h

1.0252

35h

1.0460

16h

1.0053

26h

1.0265

36h

1.0473

17h

1.0066

27h

1.0278

37h

1.0486

Table 7.20 High Limit Status Register

ADDR.

R/W

DEFAULT

35h

R-C

High Limit

Status

E3HIGH

E2HIGH

E1HIGH

IHIGH

00h

Table 7.19 Substrate Diode Ideality Factor Look-Up Table (BJT Model) (continued)

SETTING

FACTOR

SETTING

FACTOR

SETTING

FACTOR

EMC1413 Datasheet(PDF) 40 Page - SMSC Corporation

EMC1413 Datasheet(HTML) 40 Page - SMSC Corporation

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