MLX90363 Datasheet, PDF (20/57 Pages) Melexis Microelectronic Systems – Triaxis® Magnetometer IC With High Speed Serial Interface

MLX90363
Triaxis® Magnetometer IC
With High Speed Serial Interface
#7654321 0 #76543210
1
RST 0
3
Time – Out
2
Value
5
4
7
CRC
6 Marker 0 1 0 0 1 1
Table 9 – GET1 MOSI Message (Opcode = 19)
Note: The NOP message is described at section “14.11”
• The parameter Marker defines the regular data packet type expected by the master:
Marker = 0 refers to frame type “ALPHA + Diagnostic”.
Marker = 1 refers to frame type “ALPHA + BETA + Diagnostic”.
Marker = 2 refers to frame type “Components X + Y + Z +Diagnostic”.
• The parameter Rst (Byte1[0] ) when set, resets the rolling counter attached to the regular data
packets.
• The parameter TimeOutValue tells the maximum life time of the Regular Data Message.
The time step is t1us (See table in Section 10), the maximum time-out is 65535 * t1us. The time-
out timer starts when the message is ready, and stops on the SS rising edge of the next
message.
On time-out occurrence, there are two possible scenarios:
Scenario 1. SS is high, there is no message exchange. In this case, a NTT message replaces
the regular message in the SCI buffer.
Scenario 2. SS is low, the regular packet is being sent out. In this case, the timeout violation
is reported on the next message, this later being an NTT message.
3901090363
Rev. 005
Page 20 of 57
Data Sheet
Jul/13