S&T kontron COMe-cEL6, User Manual, Page: 86 / 99

COMe-cEL6 - User Guide, Rev.1.3
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Sub-screen Next Level Sub-screens / Description
PCH/IO
Configuration>
(continued) Serial IO
Configuration>
(continued)
UART2 Controller
(COMe UART1>
UART2 Controller
(COMe UART1>
(continued) Set UART2 mode
-DBG used for BIOS log print and/or Kernel OS
debug
-COM-16550 Compatibility serial power with power
gating support
[Disabled, enabled, Communication port (COM)]
Serial IO UART1
Settings> Hardware
Flow
Control> Enable: configures two additional
GPIO pads for use as RTS/CTS signals
for UART
[Enabled, Disabled]
DMA
Enable> Enable: UART OS driver uses DMA
when possible
Disable: OS driver enforces PIO mode
[Enabled, Disabled]
Serial IO UART2
Settings> Hardware
Flow
Control> Enable: configures two additional
GPIO pads for use as RTS/CTS signals
for UART
[Enabled, Disabled]
DMA
Enable> Enable: UART OS driver uses DMA
when possibleDisable: OS driver
enforces PIO mode
[Enabled, Disabled]
Sub-screen Next Level Sub-screens / Description
PCH/IO
Configuration> SCS Config.> eMMC 5.1 Controller> [Enabled, Disabled]
eMMC 5.1 HS400
Mode> [Enabled, Disabled]
Enable HS400
Software Tuning> Software tuning should improve eMMC HS400
stability at the expense of boot time.
[Enabled, Disabled]
Driver strength> Sets I/O driver strength
[33 Ohm, 40 Ohm, 50 Ohm]
SD Card 3.0 Controller> [Enabled, Disabled]
Sub-screen Next Level Sub-screens / Description
PCH/IO
Configuration>
TSN GBE
Configuration>
PSE TSN GBE 0 Multi-
VC> Enable or disable TSN Multi Virtual Channels. TSN
GBE must be host owned.
[Enabled, Disabled]
PSE TSN GBE 0 SGMII
Support> Enable or disable Modphy support for SGMII mode
with the same PLL common lane must use the
same link speed. UFS needs to be disables as this
post uses the same PLL common lanes.
Make sure IFWI has the proper straps set for SGMII.
Make sure FLEX IO lane assignment is not NONE.
[Enabled, Disabled]