Chapter 4: Implementation; Description - Xilinx Virtex-5 RocketIO GTP User Manual

Chapter 4: Implementation

Table 4-1: GTP_DUAL Tile External Ports (Continued)
Notes:
1. These port names have the prefix MGT to identify them easily in a pad file that is very often used to
2. Nominal values. Refer to DS202: Virtex-5 Data Sheet for exact values and marginal conditions.
There are no attributes for this section.

Description

The position of GTP_DUAL tiles is specified by an XY coordinate system that describes the
column number and its relative position within that column. In current members of the
Virtex-5 LXT and SXT Platforms, all GTP_DUAL tiles are located in a single column along
one side of the die. As a result the X coordinate for all of the GTP_DUAL tiles is 0.
Placement Information," page 52
available device and package combinations along with the pad numbers for the external
signals associated with each tile.
There are two ways to create a UCF for designs that utilize GTP_DUAL tiles. The preferred
method is by using the RocketIO GTP Wizard. The Wizard (see
Transceiver
transceivers and contain placeholders for GTP_DUAL placement information. The UCFs
generated by the Wizard can then be edited to customize operating parameters and
placement information for the application.
The second approach is to create the UCF by hand. When using this approach, the designer
must enter both configuration attributes that control transceiver operation as well as tile
location parameters. Care must be taken to ensure that all of the parameters needed to
configure the GTP_DUAL tile are correctly entered.
50
Port
(2)
MGTAVCC
(2)
MGTAVTTRX
(2)
MGTAVTTTX
create symbols for board design schematics. In this document, the MGT prefix was removed from
those names; however, names with and without the MGT prefix are synonymous to each other.
Wizard") automatically generates UCF templates that configure the
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Two pads for 1.0V supply for
Analog Analog
transceiver mixed signal circuitry
Analog Analog Pad for 1.2V supply for RX circuitry
Two pads for 1.2V supply for TX
Analog Analog
circuitry
lists the GTP_DUAL tile position information for all
Virtex-5 RocketIO GTP Transceiver User Guide
Description
"Package
Chapter 2, "RocketIO GTP
UG196 (v1.3) May 25, 2007
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