Usb Interface - VersaLogic Tiger Reference Manual

USB Interface

The USB interface on the VL-EPM-24 is UHCI (Universal Host Controller Interface) and EHCI
(Enhance Host Controller Interface) compatible, which provides a common industry
software/hardware interface. Connector J4 includes interfaces for three USB ports (USB0-2).
The VL-CBR-5012 breakout board connects to J4 and provides two Type A USB connectors and
one Type B USB connector.
Connector J7 includes interfaces for four additional USB ports (USB3-6), one of which (USB6)
is USB 2.0 compatible only. The pinout for connector J7 is shown below.
The VL-CBR-1603 breakout board connects to J7 and provides four Type A USB ports. The
bottom left port (USB6) supports only USB 2.0 devices, as shown below. If connecting a USB
1.1 device to the VL-CBR-1603, use one of the other three ports
VL-EPM-24 Reference Manual
Table 12: J7 USB Connector Pinout
J7 Signal
Pin Name
1 Power
2 USB3_N
3 USB3_P
4 Ground
5 Power
6 USB4_N
7 USB4_P
8 Ground
9 Power
10 USB5_N
11 USB5_P
12 Ground
13 Power
14 USB6_N
15 USB6_P
16 Ground
J3
USB5 (Top)
USB6 (Bottom)
Bottom left
connector (USB6)
supports only
USB 2.0.
Figure 14. VL-CBR-1603 USB Board Connectors
Interfaces and Connectors
Function
+5V
USB3 Data –
USB3 Data +
Ground
+5V
USB4 Data –
USB4 Data +
Ground
+5V
USB5 Data –
USB5 Data +
Ground
+5V
USB6 Data –
USB6 Data +
Ground
J2
USB3 (Top)
USB4 (Bottom)
35