EMC1428 datasheet(41/53 Pages) MICROCHIP

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1°C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones

Data Sheet

 2014 Microchip Technology Inc.

DS20005275A-page 41

5.16

Hottest Temperature Registers

The Hottest Temperature Registers store the measured hottest temperature of all the selected external

diode channels (see Section 5.22). If no External diodes are selected then the High Byte Register will

read 80h. The data format is the same as the temperature channels.

5.17

Hottest Temperature Status Register

The Hottest Temperature Status Register flags which external diode temperature is hottest. If multiple

temperature channels measure the same temperature and are equal to the hottest temperature, then

hottest status will be based on the measurement order.

Bit 7 - EXT7 - The External Diode 7 channel is the hottest.

Bit 6 - EXT6 - The External Diode 6 channel is the hottest.

Bit 4 - EXT5 - The External Diode 5 channel is the hottest.

011

< 0.29

100

< 0.48

101

< 0.9

110

< 2.33

Disabled

Table 5.21 Hottest Temperature Registers

ADDR

R/W

DEFAULT

32h

Hottest

Temperature

High Byte

Sign

80h

33h

Hottest

Temperature

Low Byte

0.5

0.25

0.125

00h

Table 5.22 Hottest Temperature Register

ADDR

R/W

DEFAULT

34h

Hottest

Temperature

Status

EXT7

EXT6

EXT5

EXT4

EXT3

EXT2

EXT1

INT

00h

Table 5.20 Beta Compensation Look Up Table (continued)

BETAX[2:0]

MINIMUM BETA

210

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