Datasheet

Jumper Settings

2-4 Blackfin/SHARC USB EZ-Extender Manual

USB Chip Select Jumper (JP1)

The USB chip select jumper (JP1) connects an AMS signal from the

EZ-Board to the chip select input on the NET2272 controller. The AMS0–

signals are available. By default, the jumper is installed on pins 7 and 8,

which connect AMS3 to the chip select signal.

USB IRQ Jumper (JP2)

The USB IRQ jumper (JP2) connects a general-purpose IO signal from

the EZ-Board to the interrupt output on the NET2272 controller. The

GPIO1–4 signals are available. By default, the jumper is installed on pins 1

and 2, which connect GPIO1 to the interrupt signal.

USB Soft Reset Jumper (JP3)

The soft reset jumper (JP3) connects a general-purpose signal from the

EZ-Board to the reset input on the NET2272 controller. GPIO1–4 are

available. By default, the jumper is installed on pins 7 and 8, which con-

nect GPIO4 to the reset signal.