MLX90366 Datasheet, PDF (18/34 Pages) Melexis Microelectronic Systems – Triaxis Position Sensor Assembly feat. SENT

MLX90366
Triaxis^ Position Sensor Assembly feat. SENT
13.3.2. Serial Message Sequence
The circuit complies with the following sub-set specifications of the norm for pressure sensors
(The norm for the angular sensor case does not specify the serial message format)
#
8bit ID
Item
12 bit data
Comments
1
29
Sensor ID
Prog.
EE_USERID1_12LSB
2
01
Error Code
RAM
Described at next chapter …
3
2A
4
01 / 80
5
2B
Sensor ID
Error Code / User-defined RAM
value
Sensor ID
Prog.
{EE_USERID2_8LSB, EE_USERID1_4MSB }
RAM
RAM variable @ address EE_RAM_PROBE_ADDR
e.g. Temp, GainCode, FieldStrength
Prog.
{ EE_USERID3_4LSB,EE_USERID2_8MSB }
6
01
Error Code
RAM
7
2C
8
01 / 80
Sensor ID
Prog.
Error Code / User-defined RAM
value
RAM
Optional Part ( EE_ExtendedSequence = 1 )
EE_USERID3_12MSB
9
06
SENT Revision
003
10
01
Error Code
RAM
11 EE_SERIAL_ID1
12
01 / 80
13 EE_SERIAL_ID12
User-defined #1
Error Code / User-defined RAM
value
User-defined #2
EE_SERIAL_DATA_1
RAM
EE_SERIAL_DATA_2
e.g. Sensor type, Manufacturing code
RAM variable @ address EE_RAM_PROBE_ADDR
e.g. Temp, GainCode, FieldStrength
e.g. 07 – Transfer Characteristic
14
01
Error Code
RAM
15 EE_SERIAL_ID3
16
01 / 80
17 EE_SERIAL_ID4
User-defined #3
Error Code / User-defined RAM
value
User-defined #4
EE_SERIAL_DATA_3
RAM
EE_SERIAL_DATA_4
e.g. 03 – Sensor Type
18
01
Error Code
RAM
Table. Serial Message Sequence
The first part (positions 1 to 8) provides the Error Code and the Sensor ID alternatively.
The second part (positions 9 to 18) is optional as a whole enabled with EEPROM bit
EE_ExtendedSequence.
This second part consists of the error code (5 occurrences), 4 User-defined messages (ID and data) and
the SENT revision.
MLX90366
Rev. 1.0
Page 18 of 34
Datasheet
25/Jun/13