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Table 7. SerDes assignments
SerDes
module
Lane
Connectivity
Port
1
0 / A
Qualcomm AR8033 1 GbE PHY
1 x 1GbE RJ45 on SGMII MAC interface
1 / B
NXP F104S8A QSGMII
Quad 1 GbE PHY
4 x 1GbE RJ45 on QSGMII MAC interface
2 / C
PCIe Gen 3 (8 Gbit/s)
M.2 Key E slot for Wi-Fi cards
3 / D
PCIe Gen 3 (8 Gbit/s)
or
SATA 3.0 (6 Gbit/s)
M.2 Key E slot for Wi-Fi cards
or
M.2 Key B slot for SATA based SSD cards
2.8 Ethernet controller interface
The LS1028A processor supports one Ethernet controller (ENETC), which connects either to an onboard 1588 access header or
to an audio transceiver (through TX signals only) and an SGMII port (over LYNX36 SerDes Lane A). The controller also supports
QSGMII connectivity through the TSN switch and it is available over LYNX36 SerDes interface (Lane B).
The EMI1 MDIO/MDC signals control the SGMII and QSGMII PHY transceivers. EMI1 operates at OVDD (1.8 V) levels. The
signals are bi-directionally shifted to 2.5 V for compatibility with both AR8033 (one-port SGMII) and F104S8A PHY (Four-port
QSGMII).
2.8.1 SGMII Ethernet
The onboard Ethernet PHY, Qualcomm AR8033 PHY (U23) connects to the ENETC of the LS1028A processor using SGMII
protocol over LYNX36 SerDes lane A.
Ethernet controller interface
QorIQ LS1028A Reference Design Board Reference Manual, Rev. b, 11/2018
NXP Semiconductors
COMPANY CONFIDENTIAL
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Содержание QorIQ LS1028A
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