EMC1702 datasheet(38/60 Pages) MICROCHIP

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EMC1702

DS20006455A



2020 Microchip Technology Inc.

5.9

Tcrit Limit Registers

The Tcrit Limit Registers are used to determine whether a critical thermal event has occurred. If the

measured temperature meets or exceeds the Tcrit Limit, the THERM pin is asserted.

Unlike the ALERT pin, the THERM pin cannot be masked. Additionally, the THERM pin will be released

once the temperature drops below the corresponding threshold minus the Tcrit Hysteresis.

5.10 External Diode Fault Register

The External Diode Fault Register indicates that External Diode 1 caused the FAULT bit in the Status

Bit 1 - E1FLT - This bit is set if the External Diode 1 channel reported a diode fault.

5.11 Channel Mask Register

The Channel Mask Register controls individual channel masking. When a channel is masked, the

ALERT pin will not be asserted when the masked channel reads a diode fault or out-of-limit error. The

channel mask does not mask the THERM pin.

Bit 7 - VSENSE_MASK - Masks the ALERT pin from asserting when the VSENSE value meets or

exceeds the high limit or drops below the low limit. This bit will have no effect on the THERM pin

functionality.



‘0’ (default) - The VSENSE voltage channel will cause the ALERT pin to be asserted (if enabled).

Table 5.10 Tcrit Limit Registers

ADDR.

R/W

DEFAULT

19h

R/W

External

Diode 1 Tcrit

Limit

Sign

64h

(100°C)

20h

R/W

Internal Diode

Tcrit Limit

Sign

64h

(100°C)

21h

R/W

Tcrit

Hysteresis

0Ah

(10°C)

Table 5.11 External Diode Fault Register

ADDR.

R/W

DEFAULT

1Bh

R-C

External

Diode Fault

E1FLT

00h

Table 5.12 Channel Mask Register

ADDR

R/W

DEFAULT

1Fh

R/W

Channel

Mask

VSENSE_

MASK

VSRC_

MASK

PEAK_

MASK

INT

MASK

00h

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