Peripherals 6
miriac SBC-LS1028A User Manual
V 1.0
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© MicroSys Electronics GmbH 2019
USB3
USB port 3 is not a native USB port of the CPU but converted from UART1 by
means of a FT232RQ chip.
USB3 is available on an USB mini connector type B.
The port is used as the debug port of the LS1028A.
Part Reference:
ST14
Manufacturer:
Würth Elektronik
Type:
651 005 161 21
Used with:
Mini USB type B
cables
The following table shows the internal connections:
LS1028A
ST6
ST14
Pin
Name
Pin
Signal
Pin
Signal
1
Vbus+
AE7
UART1-SIN
←
B89
UART1-
RXD
←
J21
↔
2
D-
AB6
UART1-SOUT
→
B90
UART1-
TXD
→
3
D+
4
ID
5
GND
Table 6-16 USB Host-Only Port 3 pin assignment
Figure 6-7 USB3 topology