Freescale Semiconductor DEMO9S08AC60E USB-BDM Interface, Jumper Settings in USB Power Mode

1.9 Power

The DEMO9S08AC60E allows the user to power the board in several different ways.

1.9.1 USB-BDM Interface

The default power option is to power the board through the integrated USB-BDM interface. To power the board in this manner, simply connect the supplied USB cable from the USB connector on the DEMO9S08AC60E (J33) to a USB port on your host computer. LED D1 will light green to let you know that power has been correctly applied to the board. When powering the board through the USB-BDM interface, jumpers W1, W2, and W3 should be in their default position as described below

Table 1-3 Jumper Settings in USB Power Mode

Jumper	Default	Setting	Description
	Position
W1	2-3	5V	Sets the board for 5V
			operation
			Sets the board to be
W2	2-3	USB	powered by through the
			USB
			Outputs 5V on pin 1 of
			the I/O connector, J35.
W3	1-2	P_IO_5V	This jumper should be
			removed if you do not
			want to output 5V on
			this pin.

1.9.2 External Power Jack

The DEMO9S08AC60E can also be powered externally through the barrel connector J1. This connector is a 2.1 mm, center positive connector. Voltage supplied through this connector should be between positive 7 volts and positive 12 volts DC. To power the board through the external power jack, jumper W2 should be moved to the 1-2, EXT position. LED D1 will light green to let you know that power has been correctly applied to the board. Jumper settings are detailed below

DEMO9S08AC60E User’s Guide, Rev. 0.1

14 Freescale Semiconductor