MLX16303 Datasheet, PDF (13/20 Pages) Melexis Microelectronic Systems – Bi-directional Remote Sensor Unit Interface

MLX16303
Bi-directional Remote Sensor Unit Interface
SPI commands
Table of SPI commands
Command
CMD_ONOFF
CMD_DIAG1
CMD_DIAG2
CMD_PROG
CMD_NOP
Binary
Code
100b
010b
110b
101b
001b
Function
Switch the remote units on/off (voltage OUTx)
self diagnosis request when channel is ON
self diagnosis request when channel is OFF
Enable programming mode
No Operation allows ECU to poll the answer of a previous command
CMD_ONOFF
Switches the OUTx voltage for the selected channel (remote unit) on or off. CO0/1 will only be considered
if CS0/CS1 is set.
Command
MSB
LSB
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0 0 CO1 CS1 CO0 CS0 CMD_ON_OFF
Bit
CMD_ON_OFF
CS0
CO0
CS1
CO1
Function
100 binary
Selection of channel 0
0: channel 0 not selected
1: channel 0 selected
Channel 0 activate/deactivate
0: channel 0 deactivated
1: channel 0 activated
Selection of channel 1
0: channel 1 not selected
1: channel 1 selected
Channel 0 activate/deactivate
0: channel 0 deactivated
1: channel 1 activated
Answer
MSB
LSB
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 0 0 0 SC1 SC0 CMD_BYTE
3901016303
Rev. 004
Page 13 of 20
Data Sheet
Jun/04