Uart; Usb; Rgmii; Jtag - TQ-Systems TQMLX2160A Preliminary User's Manual

4.9.3

UART

(TBD)
4.9.4

USB

The LX2160A features two USB 3.0 controllers with integrated PHYs. All signals are routed directly to the TQMLX2160A
connectors. For the signals USB1_TX_P/N and USB_2_TX_P/N 100 nF AC coupling capacitors are populated on the TQMLX2160A.
Therefore only AC coupling capacitors are required on the carrier board at the corresponding RX lines. These should be placed as
close as possible to the device.
4.9.5

RGMII

Both RGMII interfaces EC1 and EC2 are directly routed to the TQMLX2160A connectors. The I/O signals have 1.8 V level.
The signals EC1_TX_EN (GPIO4_DAT4) and EC2_TX_EN (GPIO4_DAT16) are equipped with 1 kΩ Pull-Downs on the TQMLX2160A.
4.9.6

JTAG

The JTAG interface is routed to the connectors. Signals TCK, and TRST# have Pull-Ups to 1.8 V on the TQMLX2160A.
LX2160A
Figure 11: Block diagram JTAG interface
Preliminary User's Manual l TQMLX2160A UM 0002 l © 2020, TQ-Systems GmbH
System
TRST#
Logic
TCK
TDI
TDO
TMS
Module
Connector
VREF
X2-A109
X2-B108
X2-B109
1.8V
X2-B105
X2-B106
X2-B107
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