MLX90367EDC-ABS Datasheet, PDF (16/36 Pages) Melexis Microelectronic Systems – TriaxisÒ Position Sensor IC feat. SENT

MLX90367
Triaxis^® Position Sensor IC feat. SENT
14. SENT output Protocol
14.1. Generality
The MLX90367 complies with the sub-set of the norm J2716 Revised JAN2010, “A.1 A.1 Throttle
Position” or “A.3 Single Secure Sensors”
14.2. Throttle position / Single Secure Fast Channel
MLX90367 delivers SENT frames according the Throttle position or Single Secure format.
This format is explicitly described in this section.
14.2.1. Frame Content
The 90367 SENT frames have 6 data nibbles, and are formatted according the below table
Nibble 0
SENT Frame : Status
optional error code
Nibble 1
CH1-MSN
F
Nibble 2
CH1-MidN
F
Status[0]
Status[1]
Status[2]
Status[3]
CRC
Ch1
RC
CCH1
Channel 1 indicator ( "1" = error, "0" otherwise )
0
Enhanced Serial Message ( dissable option)
Enhanced Serial Message ( dissable option)
Enhanced CRC (the legacy CRC is optional)
12 bit angle
8 bit rolling counter
Inverted Copy Ch1
Nibble 0
SENT Frame : Status
optional error code
Nibble 1
CH1-MSN
F
Nibble 2
CH1-MidN
F
Single Secure
Nibble 3
Nibble 4
CH1-LSN
RC-MSN
8+EE_REPORT
Throttle position
Nibble 3
Nibble 4
CH1-LSN
CH2-LSN
8+EE_REPORT
F
Nibble 5
RC-LSN
Nibble 6
CCH1-MSN
0
Nibble 7
CRC
Nibble 5
CH2-MidN
F
Nibble 6
Nibble 7
CH2-MSN
CRC
8+EE_REPORT
Status[0]
Status[1]
Status[2]
Status[3]
CRC
Ch1
Ch2
Channel 1 indicator ( "1" = error, "0" otherwise )
Channel 2 indicator ( "1" = error, "0" otherwise )
Enhanced Serial Message ( dissable option)
Enhanced Serial Message ( dissable option)
Enhanced CRC (the legacy CRC is optional)
12 bit angle
12 bit angle = Inverted CH1 ( optional : FFF-CH1 or FF9-CH1 )
14.2.2. Diagnostic Reporting through the fast channel
Optional Pause
Optional Pause
14.2.2.1. Diagnostic Reporting, bit Status[0]
The bit Status[0] is high whenever the three following conditions are met:
1. A diagnostic (analog/environmental) detects an error *
2. The reporting of the above error is enabled **
3. The debouncing time has elapsed.
* A diagnostic of type digital cause the circuit to switch in fail-safe-mode
** See EEPROM bits EE_DIAG_SETTINGS
MLX90367
Rev 5.2
Page 16 of 36
Datasheet
Dec. 15, 15