User guide

Table Of Contents
System Generator for DSP Getting Started Guide www.xilinx.com 35
UG639 (v 12.2) July 23, 2010
Release Notes 11.4
Release Notes 11.4
System Generator Enhancements
New Device Support
Spartan®-6 Low Power
Spartan-6 XA
New Platform Support
System Generator now supports Ethernet Hardware Co-Simulation for the Virtex®-6
ML605 Platform
Xilinx Blockset Enhancements
New Blocks
DSP48 Macro 2.0
New block now available in System Generator with the following features:
The primary change is that the DSP48 Macro block is now supported by an
underlying LogiCORE rather than being a System Generator basic block.
Expanded instruction functionality coverage with the addition of 77 new opcode
instructions, bringing the opcode count from 72 to 149.
Additional pipelining capability with the addition of Opmode, M Reg, and P Reg
Stages. The Macro supports three latency modes (Automatic, By Tier, and Expert).
Automatic and tiered are square latency models, the difference being that automatic
gives a fully pipelined model where as tiered allows for finer control.
Reset & Enable Ports: DSP Macro v2.0 provides a global sclr (rst in System Generator)
and ce (en in System Generator) and does not provide access to individual enable and
reset ports of various registers in the XtremeDSP slice.
Support for Pre-Adder in Virtex
®-6, Spartan®-6 and Spartan-3A DSP families,
including the Pre-Adder D Port.
Support for various rounding capabilities.
Now support up to 64 instructions, up from 8 in the previous System Generator block.
Existing Block Updates
The following blocks have been updated with the features mentioned below.
Complex Multiplier 3.1
Support added for Spartan-6L and Spartan-6 XA
Option added to configure latency.
Note:
This block supersedes the Complex Multiplier 3.0 block
Convolution Encoder 7.0
Support added for Virtex-6 and Spartan-6