Analog Devices ADSP-BF592 EZ-KIT Lite, Руководство пользователя

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ADSP-BF592 EZ-KIT Lite Evaluation System Manual 1-15
Using ADSP-BF592 EZ-KIT Lite
The expansion interface II implemented on the ADSP-BF592 EZ-KIT
Lite consists of three connectors, which are 0.1 in. shrouded headers (
P4–
6
). The connectors contain a majority of the ADSP-BF592 processor’s sig-
nals. For pinout information, go to “ADSP-BF592 EZ-KIT Lite
Schematic” on page B-1 . The mechanical dimensions of the expansion
connectors can be obtained by contacting “Technical Support” .
For more information about daughter boards, visit the Analog Devices
Web site at:
http://www.analog.com/processors/tools/blackfin
.
Limits to current and interface speed must be taken into consideration
when using the expansion interface. Current for the expansion interface II
is sourced from the EZ-KIT Lite; therefore, the current should be limited
to 200 mA for 5V and 300 mA for the 3.3V planes. A separate power con-
nector and a regulator must be designed on a daughter card if more
current is required. Additional circuitry can add extra loading to signals,
decreasing their maximum effective speed.

Analog Devices does not support and is not responsible for the
effects of additional circuitry.
Power Architecture
The ADSP-BF592 EZ-KIT Lite has three primary voltage sources: a lith-
ium ion battery (not included), a 5V wall adaptor, and
VBUS
supplied over
a USB cable. There is an OR’ing circuit, which allows the board to draw
power from any supply source that has the highest voltage potential.
The lithium ion battery leads are inserted into connector
P3
. The
SW3
switch connects the battery to the EZ-KIT Lite when the switch is
ON
. To
change the battery, press in the white tabs and slide out the battery lead.
For more information, see
“Battery Switch (SW3)” on page 2-7 .