NXP-S32G399-RD3

[dongmin]

Hello, I'm a student studying tsn right now. The development board I'm using now is nxp-s32g399-rd3. I want to work on a project that implements Qbu functionality right now. First of all, it's not implemented on the GUI in SJA1110 in nxp-s32g399-rd3. So I'm not sure about the direction right now. I wonder if I should proceed with all of these registers as a register. And I'm also wondering what document these registers are organized in. And now I'm wondering if you're dealing with PFE, GMAC, and LLCE. Also, if I do Qbu, I usually go into eMAC and pMAC, but I'm wondering where layer I'll actually do this!

[Joey_z]

hi,dongmin

Thank you for contacting us.

If you want to operate the SJA1110 register, you can refer to its User Manul and datasheet. All SJA1110 models are equipped with hardware-assisted information security and functional safety capabilities, multiple gigabit SGMII interfaces, and comply with the latest AVB and TSN standards.

For gmac, it supports Frame Preemption (IEEE 802.1Qbu) for time-sensitive networking. PFE supports 802.1AS-Rev and IEEE 1588 precision clock synchronization protocol. Provides QoS (Quality of Service). LLCE handles CAN/LIN/FlexRay acceleration and routing.

BR

Joey

[dongmin]

First of all, thank you for your answer, but now I'm looking at the circuit diagram of s32g339-rd3 and now I'm connected from s32g339a to KSZ9031 RJ45 through GMAC0 and this is not connected to ETH_SWITCH SJA1110?

[Joey_z]

Hi,dongmin

Please refer to this link for the download of circuit diagram.

S32G3 Vehicle Networking Reference Design | NXP Semiconductors

I'm connected from s32g339a to KSZ9031 RJ45 through GMAC0 and this is not connected to SJA1110?

>>>Yes

BR

Joey

[dongmin]

So if I want to use the Frame Preemption feature now, I can't use SJA1110 and I can only use GMAC directly?