Expansion Interface II
1-26
ADSP-21479 EZ-Board Evaluation System Manual
Expansion Interface II
The expansion interface II allows an Analog Devices EZ-Extender
®
or a
custom-design daughter board to be tested across various hardware plat-
forms with identical expansion interfaces.
The expansion interface II implemented on the ADSP-21479 EZ-Board
consists of two connectors: a 0.1 in. shrouded header (
P2
) and a Samtec
QMS series header (
J1
). The connectors contain a majority of the
ADSP-21479 processor’s signals.
For pinout information, go to
“ADSP-21479 EZ-Board Schematic” on
. The mechanical dimensions of the expansion connectors can be
obtained by contacting
.
For more information about daughter boards, visit the Analog Devices
Web site at
http://www.analog.com/processors/tools/sharc
Limits to current and interface speed must be taken into consideration
when using the expansion interface II. Current for the expansion
interface II is sourced from the EZ-Board; therefore, the current should be
limited to 1A for 5V and 500 mA for the 3.3V planes. If more current is
required, then a separate power connector and a regulator must be
designed on a daughter card. 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.
