EMC1822 datasheet(67/103 Pages) MICROCHIP

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8.11.23 Consecutive Alert Register (Address 22h)

Name:

CONSEC ALERT

Offset:

0x22

Bit

TMOUT

CTHRM[2:0]

CALRT[2:0]

Access

Reset

Bit 7 – TMOUT Enables the time-out and idle functionality of the I2C protocol.

Value

Description

The I2C time-out and idle functionality are enabled. The I2C interface will time-out if the clock

line is held low for longer than 30 ms. Likewise, it will reset if both the data and clock lines

are held high for longer than 200 µs.

The I2C time-out and idle functionality are disabled. The I2C interface will not time-out if the

clock line is held low for longer than 30 ms. Likewise, it will not reset if both the data and

clock lines are held high for longer than 200 µs. This is used for I2C compliance.

Bits 6:4 – CTHRM[2:0] Determines the number of consecutive measurements that must exceed the

corresponding Therm Limit before the THERM pin is asserted.

Value

Description

000

001

011

111

Bits 3:1 – CALRT[2:0] Determines the number of consecutive measurements that must exceed the

corresponding Therm Limit before the ALERT pin is asserted.

Value

Description

000

001

011

111

Multi-Channel Low Voltage Temp Sens...

System Management Bus Protocol

Datasheet

DS20006048A-page 67

EMC1822 Datasheet(PDF) 67 Page - Microchip Technology