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Chapter 14
14. USB Interface
The USB interface of the MOPSlcdLX is integrated in the CS5536 companion chip. It comes w
ports, which follow the OHCI/EHCI specification and are USB 2.0 compliant. You can expand
USB connect
ions by adding external hubs.
14.1
Connector
The USB
ports are available through the X15006 and X15007 connectors (each 4 pins). To ha
available on the standard USB interface connectors, an adapter cable is required.
available from Kontron (KAB-USB-1, Part Number 96054-0000-00-0).
The foll
owing table shows the pinouts for the USB connectors.
Header
Note:
To protect the external power lines of peripheral devices, make sure that
1
- the wires have the right diameter to withstand the maximum available current.
- to enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.
To find the location of the USB ports on the MOPSlcdLX board, please see the Appendix "Connector Layout".
14.2 Limitations
The power contacts for USB devices on Pin 1 and Pin 4 are protected. They are suitable to supply connected
USB devices with a maximum of 500 mA power dissipation. Do not supply external USB devices with higher
power dissipation through these pins.
Kontron User's Guide MOPSlcdLX
Pin
Signal Name
1
(1)
VCC
2
USB-
3
USB+
4
GND
28
An USB interface cable is
Function
+5V
USB signal (negative)
USB signal (positive)
Ground
USB Interface
ith two USB
the amount of
ve the signals
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