EMC1702 datasheet(43/60 Pages) MICROCHIP

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EMC1702



2020 Microchip Technology Inc.

DS20006455A

5.16 Low Limit Status Register

The Low Limit Status Register contains the status bits that are set when a temperature or voltage

channel drops below the low limit. If any of these bits are set, 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 if the error status has been removed.

If not masked, 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.

Once set, the status bits will remain set until read.

Bit 7 - VSENSE_LOW - This bit is set when the VSENSE value drops below its programmed low limit.

Bit 6 - VSRC_LOW - This bit is set when the VSOURCE value 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.

5.17 Crit Limit Status Register

The Crit Limit Status register contains the status bits that are set when a temperature or voltage

channel Tcrit or Vcrit Limit is met or exceeded (see Section 5.9 and Section 5.27). If any of these bits

are set, the CRIT status bit in the Status register is set. Reading from the Crit Limit Status register will

not clear the status bits. Once the temperature drops below the Tcrit Limit minus the Tcrit Hysteresis,

the corresponding status bits will be automatically cleared. Once the voltage drops below the Vcrit Limit

minus the Vcrit Hysteresis, the corresponding status bits will be automatically cleared. The CRIT bit in

the Status register will be cleared when all individual bits are cleared.

Bit 7 - VSENSE_VCRIT - This bit is set when the VSENSE value meets or exceeds its programmed

Vcrit limit. When set, this bit will assert the THERM pin.

Bit 6 - VSRC_VCRIT- This bit is set when the VSOURCE value meets or exceeds its programmed Vcrit

limit. When set, this bit will assert the THERM pin.

Bit 1 - E1TCRIT - This bit is set when the External Diode 1 channel meets or exceeds its programmed

Tcrit limit. When set, this bit will assert the THERM pin.

Bit 0 - ITCRIT - This bit is set when the Internal Diode channel meets or exceeds its programmed Tcrit

limit. When set, this bit will assert the THERM pin.

Table 5.20 Low Limit Status Register

ADDR

R/W

DEFAULT

36h

R-C

Low Limit

Status

VSENSE_

LOW

VSRC_

LOW

ILOW

00h

Table 5.21 Crit Limit Status Register

ADDR

R/W

DEFAULT

37h

R-C

Crit Limit

Status

VSENSE_

VCRIT

VSRC_

VCRIT

TCRIT

ITCRIT

00h

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