HC4GX15 Datasheet, PDF (179/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 1: HardCopy IV Design Flow Using the Quartus II Software
1–11
Quartus II Settings for HardCopy IV Devices
Figure 1–4 shows the Design Assistant.
Figure 1–4. Enabling the Design Assistant
I/O Assignment Settings
Due to the complex rules governing the use of I/O cells and their availability for
specific pins and packages, Altera recommends that I/O assignments be completed
using the Pin Planner tool and the Assignment Editor in the Quartus II software.
These tools ensure that all of the rules regarding each pin and I/O cell are applied
correctly. The Quartus II software can export a .Tcl script containing all I/O
assignments.
f For more information about I/O location and type assignments using the Quartus II
Assignment Editor and Pin Planner tools, refer to the Assignment Editor chapter in
volume 2 of the Quartus II Handbook.
To ensure that the HardCopy IV mapping is successful, you must make accurate I/O
assignments that include pin locations, I/O standards, drive strengths, and
capacitance loading for the design. Ensure that the I/O assignments are compatible
with all selected devices. Altera recommends not leaving any I/O with an unassigned
I/O assignment.
© January 2010 Altera Corporation
HardCopy IV Device Handbook, Volume 2