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2.6 DisplayPort
The LS1028A processor supports and embedded DisplayPort (eDP) TX controller that connects to the DisplayPort connector on
the board for digital display.
The controller supports the following:
• Supports DisplayPort 1.3 and eDP 1.4
• Supports link transfer rates of up to HBR2 (5.4 Gbit/s) and display resolution up to 4Kp60
The CONFIG1 and CONFIG2 pins of the DisplayPort are pulled down with 1 M
Ω
resistors to avoid any power driven on the
DP_PWR pin from a downstream device.
The DP_PWR pin can provide 3.3 V up to 3 A inrush current through a power switch NX5P3090UK (controlled through the CPLD
register).
2.7 SerDes interface
The LS1028A processor supports one SerDes LYNX36 module with four high-speed serial communication lanes to support
various protocols, such as SGMII, QSGMII, PCIe, and SATA.
The figure below shows the LS1028ARDB SerDes architecture.
LS1028A
S ERDE S
2 / C
0 / A
1 / B
3 / D
PCIe M.2
Key-E (Wi-Fi)
PCIe or SATA based
SSD M.2
Key B
A
B
QS GMII PHY F104
x4
RJ -45 with
Transform
er
SG MII PHY
AR8033
RJ -45 with
Transform
er
x4
PCIe M.2
Key-E (Wi-Fi)
Figure 10. SerDes architecture
The LS1028A SerDes module support several protocols, which are assigned to dedicated functions on the LS1028ARDB, as
shown in the table below.
LS1028ARDB Functional Description
QorIQ LS1028A Reference Design Board Reference Manual, Rev. b, 11/2018
26
COMPANY CONFIDENTIAL
NXP Semiconductors
Содержание QorIQ LS1028A
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