EMC1428 datasheet(43/53 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 43

5.19

Low Limit Status Register

The Low Limit Status Register contains the status bits that are set when a temperature channel drops

below the low limit for a number of consecutive readings as set by the consecutive alert counts (see

Section 5.14). 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 if the error condition has been removed. Reading

from the register will also clear the LOW status bit in the Status Register.

The ALERT pin will be set if any of these status bits are set.

Bit 7 - E7LOW - This bit is set when the External Diode 7 channel drops below its programmed low

limit.

Bit 6 - E6LOW - This bit is set when the External Diode 6 channel drops below its programmed low

limit.

Bit 5- E5LOW - This bit is set when the External Diode 5 channel drops below its programmed low limit.

Bit 4 - E4LOW - This bit is set when the External Diode 4 channel drops below its programmed low

limit.

Bit 3 - E3LOW - This bit is set when the External Diode 3 channel drops below its programmed low

limit.

Bit 2 - E2LOW - This bit is set when the External Diode 2 channel drops below its programmed low

limit.

Bit 1 - E1LOW - This bit is set when the External Diode 1 channel drops below its programmed low

limit.

Bit 0 - ILOW - This bit is set when the Internal Diode channel drops below its programmed low limit.

5.20

THERM Limit Status Register

The THERM Limit Status Register contains the status bits that are set when a temperature channel

THERM Limit is exceeded for a number of consecutive readings as set by the consecutive therm

counts (see Section 5.14). If any of these bits are set, then the THERM status bit in the Status Register

is set. Reading from the THERM Limit Status Register will not clear the status bits. Once the

temperature drops below the THERM Limit minus the THERM Hysteresis, the corresponding status

Table 5.24 Low Limit Status Register

ADDR.

R/W

DEFAULT

36h

R-C

Low Limit

Status

LOW

ILOW

00h

Table 5.25 THERM Limit Status Register

ADDR

R/W

DEFAULT

37h

R-C

THERM

Limit Status

THERM

00h

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