Analog Devices 82-000197-01 manual USB EZ-Extender Interface

USB EZ-Extender Interface

You can reset the NetChip 2272 device by asserting LOW these flag pins:

•FLAG2 on the ADSP-21262 and ADSP-21364 processors

•FLAG0 on the ADSP-21369 processor

The USB interrupt request pin (IRQ) line of the extender connects to FLAG1 on the ADSP-21262, ADSP-21364, and ADSP-21369 processors. This flag pin may be used for push buttons or LEDs on the respective EZ-KIT Lites; consequently, the user must make the proper changes to that EZ-KIT Lite.

When writing to and reading from the USB device using the EZ-KIT Lites, use memory addresses listed in Table 1-1.

Table 1-1. USB Device Memory

EZ-KIT Lite	Starting Address		Ending Address
ADSP-21262	0x0100	6C00	0x0100	6FE0
ADSP-21364	0x0100	6C00	0x0100	6FE0
ADSP-21369	0x0C00 0000		0x0C00 03E0

SHARC USB EZ-Extender Manual 1-3