mlx90609 Melexis Company, mlx90609 Datasheet - Page 13

• Manufacturer Part Number: mlx90609
• Description: Angular Rate Sensor
• Manufacturer: Melexis Company

Bit15
Bit15
There are three SPI commands that are used to control embedded ADC of the MLX90609: STATR,
ADCC and ADCR.
•
Every instruction sent to the MLX90609 has an answer. If the MLX90609 is not able to accept the
instruction a refusal answer will be transmitted out. This answer has a unique format which is
shown in the
understand a possible reason for the instruction rejection.
Bit15
•
• • • •
• • • •
390109060901
Rev 008
Bit15
AD10…AD0
0
0
1
0
5.3.1 ADC Instructions and Answers
The Refusal Answer
Command of the Status Reading (STATR)
Command of the ADC Control (ADCC)
Command of the ADC Reading (ADCR)
Bit 7
Bit 7
Bit 7
1
1
1
Bit14
Bit14
Bit14
OPC
Bit14
X
X
X
Table 9. Format of the ADCC command (The answer is the same as for the STATR command)
Bit13
Bit13
EOC
EOC
Bit13
EOC
Bit13
A result of the AD-conversion. These bits are valid only when EOC bit is set.
EOC
Table
Bit 6
Bit 6
Bit 6
0
0
0
Bit12
Bit12
Bit12
7. The refusal answer is the only one that has a set MSB. The other bits help to
Bit12
X
X
X
X
Bit11
Bit11
Bit11
AD10
X
X
Bit11
X
Bit 5
Bit 5
Bit 5
0
0
0
Bit10
Bit10
BUSY
Bit10
X
Table 8. Format of the STATR command
X
Table 10. Format of the ADCR command
Bit10
AD9
Table 7. Refusal answer format
Bit 9
Bit 9
X
X
Bit 9
Bit 9
AD8
X
Bit 4
Bit 4
Bit 4
0
Bit 8
1
Bit 8
0
Page 13 of 22
Refusal answer
X
X
Bit 8
Angular Rate Sensor (Standard version)
Bit 8
AD7
X
Instruction
Instruction
Instruction
Answer
Answer
Answer
Bit 7
Bit 7
X
X
Bit 7
Bit 7
AD6
X
CHAN
Bit 3
Bit 3
Bit 3
1
Bit 6
Bit 6
0
X
X
Bit 6
Bit 6
AD5
X
MLX90609
Bit 5
Bit 5
X
X
Bit 5
Bit 5
AD4
X
ADEN
Bit 2
Bit 2
Bit 2
Bit 4
Bit 4
0
0
X
X
Bit 4
Bit 4
AD3
X
CHAN
CHAN
Bit 3
Bit 3
Bit 3
Bit 3
AD2
X
Bit 1
Bit 1
Bit 1
0
0
0
ADEN
ADEN
Bit 2
Bit 2
Bit 2
Bit 2
AD1
X
Data Sheet
February/08
Bit 1
Bit 1
Bit 1
Bit 1
AD0
X
X
X
Bit 0
Bit 0
Bit 0
0
0
0
Bit 0
Bit 0
Bit 0
Bit 0
X
X
X
0