MLX90363 Datasheet, PDF (28/57 Pages) Melexis Microelectronic Systems – Triaxis® Magnetometer IC With High Speed Serial Interface

MLX90363
Triaxis® Magnetometer IC
With High Speed Serial Interface
Table 23 – OscCounterStart Slave-In message (opcode 24)
#7 6 5 4 3 2 1 0 # 7 6 5 4 3 2 10
1
0
3
2
5
4
7
CRC
611011001
Table 24 – OscCounterStart Acknowledge Slave-Out message (opcode 25)
#7 6 5 4 3 2 1 0 # 7 6 5 4 3 2 10
1
0
3
2
5
4
7
CRC
611011010
Table 25 – OscCounterStop Slave-In message (opcode 26)
#7 6 5 4 3 2 1 0 # 7 6 5 4 3 2 10
1
0
3
CounterValue[14:8]
2
CounterValue[7:0]
5
4
7
CRC
611011011
Table 26 – OscCounter Slave-Out message (opcode 27)
• Parameter CounterValue represents the time between the two events OscCounterStart Slave
Select Rising Edge and OscCounterStop Slave Select Rising Edge, in microsecond, and for an
oscillator frequency equal to 19MHz exactly.
Message Sequence Chart
Oscillator Frequency Diagnostic
Master
Slave1
OscCounterStart ( )
Challenge Echo ()
OscCounterStop ( )
OscStartAck ()
X( )
OscCounter ()
Figure 16 – Oscillator Frequency Diagnostic Message Sequence Chart
SI
OscStart
OscStop
X
SO
X
StartAck OscCounter
SS
tOscCounter
Figure 17 – Oscillator Frequency Diagnostic Timing Diagram (SCI)
Parameter
Symbol
tOscCounter
Test Conditions
Min Typ Max
500 1000 30000
Units
us
3901090363
Rev. 005
Page 28 of 57
Data Sheet
Jul/13