Data Sheet

Page 22 ams Datasheet
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CCS 811 − Application Register Overview
FW_App_Version (Firmware Application
Version) Register (0x24)
Two byte read only register which contain the version of the
firmware application stored in the CCS811 in the format
Major.Minor.Trivial
Figure 21:
Firmware Application Version Format
ERROR_ID (Error Identifier) Register (0xE0)
If the ERR bit [0] of the STATUS Register is set, this single byte
read only register indicates source(s) of the error.
Figure 22:
ERROR_ID Register Codes
Byte 0 Byte 1
7654321076543210
Major Minor Trivial
Bit ERROR_CODE Description
0 WRITE_REG_INVALID
The CCS811 received an I²C write request addressed to this station but with
invalid register address ID
1 READ_REG_INVALID The CCS811 received an I²C read request to a mailbox ID that is invalid
2 MEASMODE_INVALID
The CCS811 received an I²C request to write an unsupported mode to
MEAS_MODE
3 MAX_RESISTANCE
The sensor resistance measurement has reached or exceeded the maximum
range
4 HEATER_FAULT The Heater current in the CCS811 is not in range
5 HEATER_SUPPLY The Heater voltage is not being applied correctly
6-Reserved for Future Use
7-Reserved for Future Use