S32K118 I2C PORT TIMING PARAMETER

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S32K118 I2C PORT TIMING PARAMETER

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alighieri
Contributor III

Hello

We Have A Car Tuner Module Project Expected To Apply S32K118 MCU With TEF6686. The Project Also Provide A State-Of-Art Audio Bus Functions Provided By ADI's A2B And In Our Case Tuner Module Would Be A Subordinate Node Which Means All Controls To The Tuner Would Be Through A Remote Host Behind A2B Master Transceiver. 

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As You See Above We For Remote Control Through A2B Superframe With I2C We Have To Apply MCU's LPI2C As Slave. Considering Communication Issue Here Would Be A Interrupt Generated By A2B AD2428 For S32K118 Through Mailbox Mechanism When Some Message Is On Arrival At Bus. The Design Looks No Problem Until I See Some Issues ( Post URL) With Similar Design Posted Upon ADI EngineerZone Community.

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The Problem Is Due To AD2428W's I2C Clock Timing Parameter. So Before Getting Down To The Serious Design Job I Have To Figure Out The Compatibility Between AD2428W And S32K118. Unfortunately After Reading Reference Manual I See No Such Timing Parameter.  Can Any One Help To Check The Specification For Me?

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lukaszadrapa
NXP TechSupport
NXP TechSupport

Hi @alighieri 

The LPI2C timing parameters are not specified in Datasheet as those are rather configurable. The section "52.3.2.4 Timing Parameters" in the LPI2C chapter of RM (https://www.nxp.com/webapp/Download?colCode=S32K1XXRM) provides information on how to handle such configuration, as well as example configurations so that the timings fall within I2C_specification (https://www.nxp.com/webapp/Download?colCode=UM10204).

You can see the timing symbols correspond to the same names as in the I2C spec document.

Regards,

Lukas

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