LLCE

[yuancz]

In Figure 787 of the CAN HUB (CE_CAN_HUB) section within Part 10 LLCE of the 32E series, what do the abbreviations OCT/FQ/STXA/AW signify, and what are their specific functions? Particularly, STXA and AW are not explained anywhere in the entire document.

[chenyin_h]

Hello,  

Thanks for your post.

1. OCT is the On-chip transmitter, The logic determines if any of the CAN modules contributing to a network have won arbitration and are now the bus transmitter.

2. FQ is the Fault qualifier,  the logic will qualify any of the 6 FCCU fault reactions with a configuration register 

3. STXA is the Suppress TX arbitration

4. AW is Arbitration win, the last two signals are used for the internal arbitration in CAN HUB

BR

Chenyin

[yuancz]

Is it correct to understand that the acceleration method for the LLCE in the S32 series is primarily achieved through software-based routing and forwarding? In reality, the hardware only contains a lookup table, while the forwarding of destinations is entirely handled by software?