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4.12 Status Register

The status register contains information on the operational status of the heater, the alert mode and

on the execution status of the last command and the last write sequence. The command to read

out the status register is shown in Table 19 whereas a description of the content can be found in

Table 20.

Command

Hex code

Read Out of status register

0xF32D

Table 19. Command to read out status register (Clear block are controlled by microcontroller, grey blocks by

the sensor)

Bit

Field description

Default value

15

Alert pending status

'0': no pending alerts

'1': at least one pending alert

‘1’

14

Reserved

‘0’

13

Heater status

‘0’ : Heater OFF

‘1’ : Heater ON

‘0’

12

Reserved

‘0’

11

RH tracking alert

‘0’ : no alert

‘1’ . alert

‘0

10

T tracking alert

‘0’ : no alert

‘1’ . alert

‘0’

9:5

Reserved

‘xxxxx’

4

System reset detected

'0': no reset detected since last

‘clear status register’ command

'1': reset detected (hard reset, soft reset command or supply fail)

‘1’

3:2

Reserved

‘00’

1

Command status

'0': last command executed successfully

'1': last command not processed. It was either invalid, failed the

integrated command checksum

‘0’

0

Write data checksum status

'0': checksum of last write transfer was correct

'1': checksum of last write transfer failed

‘0’

Table 20. Description of the status register.