Questions tagged [sgmii]

Serial Gigabit Media Independent Interface (SGMII)

Filter by
Sorted by
Tagged with
1
vote
1answer
39 views

How to connect CPU with RGMII pins to an LTE module that takes only SGMII signals?

The Hi3519 Hisilicon CPU has RGMII pins. We are trying to connect it to the EC21 LTE Module from Quectel which contains SGMII pins. Would using two Realtek RTL8201F-VB-GG PHY chips with magnetics ...
0
votes
0answers
18 views

SGMII diff pair overlapping

I have to route SGMII diff pair from one IC to another. But unfortunately they are overlapping. Can I swap around P and N differential lines? I've heard PCI Express standard has such capability.
3
votes
1answer
168 views

Broadcom Ethernet PHY link-up issue

We are using BCM5482SA2KFBG PHY for ethernet link in SGMII mode by selecting INTSEL = 2'b10. The PHY was supposed to establish a link upon power up using Autonegotitation without any management ...
1
vote
0answers
20 views

ksz9477s switch IC

Can SGMII port of ksz9477s ethernet switch be connected to 100BASE-TX or 100BASE-FX SFP module directly? According to the ksz9477s' evaluation board it can. But i wonder does this 100BASE-TX/100BASE-...
0
votes
1answer
104 views

SGMII to 100BASE-FX

I need to connect seventh port (SGMII) of KSZ9477S switch to AFBR5803AQZ optical transceiver (It's 100 Mbps). I wanted to use PHY with SGMII interface and fiber mode (VSC8658XHJ), but it's too ...
0
votes
1answer
879 views

Purpose of QSGMII

I do not understand the purpose of QSGMII. QSGMII is supposed to combine 4 SGMII signals from 4 MACs into 1 QSGMII signal at 5 GHz. However, there is no Ethernet standard that works at 4 (or 5) GHz. ...
0
votes
1answer
417 views

SGMII, MDIO and link training

I am reading this document : https://www.nxp.com/webapp/Download?colCode=AN3869 I got this link from NXP support, but I did not get a precise answer to my questiosn and I would like to be sure : The ...
1
vote
1answer
1k views

Does SGMII use MDIO?

I was reading the SGMII specification and the documentation of a Gigabit MII to SGMII converter (see MAX24287). I do not see a MDIO to control the registers of the PHY (Basic Mode Status Register, ...
0
votes
1answer
593 views

Does SGMII contain MDIO?

When connecting a NIC (Intel I210-IS) to an gigabit ethernet switch with integrated PHYs (Marvell 88E6176) using the SGMII interface, I came across the following question: Since SGMII is a serialized ...