MLX10407EDF Просмотр технического описания (PDF) - Melexis Microelectronic Systems

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MLX10407EDF

5-Channel Gauge Driver with Serial Link

Melexis Microelectronic Systems  

Serial Link

MLX10407 Serial link Protocol

The 10407 outputs an error status on pin ERRB on the falling edge of SCLK immediately

following the transmission of the quadrant lsb.

The pin 16 (ERRB) of the 10407 is driven low if there is no continuity between two consecutive

quadrant values sent (for logo1 or logo2). The data is valid till CS is high, then when CS goes low

ERRB returns to high impedance state and the error status is lost.

If the MCU has detected an error, it is possible to send data again : the first data bit set to "1" will

initiate a new transmission of 15 data bits.

On the HIGH to LOW transition of CS the angle and quadrant values are stored into the internal

registers of the 10407 if the following conditions are met:

• The MCU sent the appropriate writing request

• No quadrant error was detected by the 10407.

Otherwise new angle and quadrant values are discarded by the 10407 and the previous values

are kept. The MCU will have to initialize a new transmission to the 10407.

If VER (pin 17) is connected to VDD then the 10407 does not store values of angles and

quadrant in case of an error. It is however possible to make the 10407 store all angles and

quadrant values even if there is an error, by connecting VER (pin 17) to GND.

M39L0X190021x0x4N07ame of Sensor

Rev. 003

RePvaYg.Xe 7

22/Aug/98

PAagueg/702

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