MLX16303

Bi-directional Remote Sensor Unit Interface

3901016303

Page 13 of 20

Data Sheet

Rev. 004

Jun/04

SPI commands

Table of SPI commands

Command

Binary

Code

Function

CMD_ONOFF

100b

Switch the remote units on/off (voltage OUTx)

CMD_DIAG1

010b

self diagnosis request when channel is ON

CMD_DIAG2

110b

self diagnosis request when channel is OFF

CMD_PROG

101b

Enable programming mode

CMD_NOP

001b

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

Function

CMD_ON_OFF

100 binary

CS0

Selection of channel 0

0: channel 0 not selected

1: channel 0 selected

CO0

Channel 0 activate/deactivate

0: channel 0 deactivated

1: channel 0 activated

CS1

Selection of channel 1

0: channel 1 not selected

1: channel 1 selected

CO1

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