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4 connecting the demo board to the pc, Connecting the demo board to the pc, Demo board connected to the usb hub – Motorola USB08 User Manual

Page 18

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Designer Reference Manual

USB08 Evaluation Board

18

USB08 Quick Start

MOTOROLA

USB08 Quick Start

1.4 Connecting the Demo Board to the PC

Since low-speed USB devices should be equipped with a captive
connection, the USB cable is fixed on the USB08 board (downstream
direction). In the upstream direction (PC/host side), the USB
connections are always type A. Therefore, the cable of the USB08 demo
board has a type A plug.

The connection of the demo board is made directly to the USB socket of
the PC or, as shown in the

Figure 1-1

, to a USB hub.

Figure 1-1. Demo Board Connected to the USB Hub

The board supply current can be delivered by the USB connection.
Therefore, the jumper JP2, which is directly beside the USB cable, has
to be in the position Bus Powered. The jumper JP1-A (jumper block,
highest position) must be opened, which corresponds to the default
shipping configuration.