EMC1813 datasheet(16/102 Pages) MICROCHIP

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Table 5-1. Temperature Data Format

Temperature (°C)

Default Range 0°C to 127°C

Extended Range

-64°C to 191°C

Diode Fault

000 0000 0000

-64

000 0000 0000

000 0000 0000 (Note 1)

-1

000 0000 0000

001 1111 1000

000 0000 0000 (Note 2)

010 0000 0000

0.125

000 0000 0001

010 0000 0001

000 0000 1000

010 0000 1000

010 0000 0000

100 0000 0000

010 0000 1000

100 0000 1000

127

011 1111 1000

101 1111 1000

127.875

011 1111 1111

101 1111 1111

128

011 1111 1111 (Note 3)

110 0000 0000

190

011 1111 1111

111 1111 0000

191

011 1111 1111

111 1111 1000

≥ 191.875

011 1111 1111

111 1111 1111 (Note 4)

Note:

In the extended range, all temperatures below -64°C are reported as -64°C.

In Default mode, all temperatures below 0°C are reported as 0°C.

For the default range, all temperatures above +127.875°C are reported as +127.875°C.

For the extended range, all temperatures above +191.875°C are reported as +191.875°C.

5.3

Limit Registers

The device contains both high and low limits for all temperature channels. If the measured temperature

exceeds the high limit, then the corresponding Status bit is set and the ALERT pin is asserted. Likewise, if

the measured temperature is less than or equal to the low limit, the corresponding Status bit is set and

the ALERT pin is asserted.

The data format for the limits must match the selected data format for the temperature so that, if the

extended temperature range is used, the limits must be programmed in the extended data format.

The limit registers with multiple addresses are fully accessible at either address.

When the device is in the Standby state, updating the limit registers will have no effect until the next

conversion cycle occurs. This can be initiated via a write to the ONE SHOT Register (Address 0Fh; ONE

SHOT) or by clearing the RUN/STANDBY bit (see CONFIG, Address 03h).

Multi-Channel Low-Voltage Remote Di...

System Block Diagram

Datasheet

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