PC8374L datasheet(179/239 Pages) NSC

179 / 239 page

8.0 Health Management (HM) (Continued)

Revision 1.1

179

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8.5.58 Temperature Zone3 Gain and Offset Correction

Temperature gain and offset correction for Zone3 temperature monitoring.

Location: 7Fh

Type:

R/W (Becomes read-only when LOCK bit in the Configuration register is set.)

8.5.59 Enhanced Thermal Control Register

Location: 80h

Type:

R/W (Becomes read-only when LOCK bit in the Configuration register is set.)

Bit

Description

7-6

GAIN (Gain Correction). Same as GAIN in Temperature Zone1 Gain and Offset Correction register, but for

Temperature Zone2.

5-4

Reserved.

3-0

OFFSET (Offset Correction). Same as OFFSET in Temperature Zone1 Gain and Offset Correction register, but

for Temperature Zone2.

Bit

76543210

Name

GAIN

Reserved

OFFSET

Reset

Bit

Description

7-6

GAIN (Gain Correction). Same as GAIN in Temperature Zone1 Gain and Offset Correction register, but for

Temperature Zone3.

5-4

Reserved.

3-0

OFFSET (Offset Correction). Same as OFFSET in Temperature Zone1 Gain and Offset Correction register, but

for Temperature Zone3.

Bit

76543210

Name

Reserved

ETC_EN

Reset

Bit

Description

7-1

Reserved

ETC_EN. When set to 1, the ETC internal signal is asserted if one of the following conditions is true:

• The temperature data value in Temperature Zone1 is higher than the critical limit set in the Temperature Crit-

ical Limit Zone1 register.

• A communication error with Device 1 (LM96011 or LM96010 or LM96012) occurs.

• A major SensorPath Bus failure is detected.

An asserted ETC signal turns off the Main power supply (via the Glue module). The resulting ETC signal is

disabled when the VDD3 power is off and remains disabled until both of the following conditions are met:

• The delay time (182 ms) for enabling VDD channels (see Section 8.5.55 on page 177) after VDD3 power is

turned on, has elapsed.

• The temperature data in Temperature Zone1 was updated with a new value by the LMxx Sensor device

If the temperature data from Device 1 (LM96011 or LM96010 or LM96012) is not updated for 728 ms after VDD3

power is on (see “Time-Out Function” on page 133), the HM assumes a communication error with the LMxx Sensor

device occurred and asserts ETC.

0: Disable assertion of ETC

1: Enable assertion of ETC (default)

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PC8374L Datasheet(PDF) 179 Page - National Semiconductor (TI)

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