Datasheet

Expansion Interface II
1-20 ADSP-21489 EZ-Board Evaluation System Manual
For a dual ADSP-21489 EZ-Board session, connect two EZ-Boards via
connectors
J3 and P12. Flip one of the two EZ-Boards by 180 degrees to
allow the boards to mate. To switch between single- and multi-processor
modes, use DIP switches SW19–22. For more information, see “JTAG
Switches (SW19–22)” on page 2-16.
For three or more ADSP-21489 EZ-Board sessions, connect each of the
EZ-Board with JTAG cables. The cables connect JTAG pins of each
EZ-Board. By using the cables, you put the EZ-Board in a JTAG serial
chain. For three EZ-Boards, three JTAG cables are required. Similarly, for
four EZ-Boards, four JTAG cables are required. Note that each respective
EZ-board also requires its own power supply.
Part numbers for Samtec standard, off the shelf link port cables can be
found in “MP JTAG Out Connector (P12)” on page 2-28.
For more information about emulators, contact Analog Devices or go to:
http://www.analog.com/en/embedded-processing-dsp/sharc/con-
tent/sharc_development_tools/fca.html
.
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-21489 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-21489 processor’s signals.
For pinout information, go to “ADSP-21489 EZ-Board Schematic” on
page B-1. The mechanical dimensions of the expansion connectors can be
obtained by contacting Technical or Customer Support.