1. INTRODUCTION
For the most recent updates to the IP installation instructions for this core, please go to:
This file contains release notes for the Xilinx LogiCORE IP FIFO Generator v9.2 solution. For the latest core updates, see the product page at:
2. NEW FEATURES
2.1 ISE
- ISE 14.2 software support
- Accurate data count support for AXI4 Stream Packet FIFO
2.2 Vivado
- 2012.2 software support
- Accurate data count support for AXI4 Stream Packet FIFO
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3. SUPPORTED DEVICES
3.1 ISE
The following device families are supported by the core for this release.
All 7 Series devices
Zynq-7000 devices
All Virtex-6 devices
All Spartan-6 devices
All Virtex-5 devices
All Spartan-3 devices
All Virtex-4 devices
3.2 Vivado
All 7 Series devices
Zynq-7000 devices
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4. RESOLVED ISSUES
4.1 ISE
- N/A
4.2 Vivado
- N/A
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5. KNOWN ISSUES
5.1 ISE
The following are known issues for v9.2 of this core at time of release:
1. Importing an XCO file alters the XCO configurations
Description: In the FIFO Generator GUI, after importing an XCO file (Independent clock, distributed memory configuration)
into a Virtex-4 CORE Generator project, if the FIFO type is changed to "Independent Clocks, Built-in FIFO" in page 1,
page 2 does not correctly offer the Read Clock Frequency and Write Clock Frequency options as it should.
CR 467240
AR 31379
2. Status flags after the first write to Common Clock Built-in FIFO not guaranteed
Description: When using Common Clock Built-in FIFO configuration with asynchronous reset for Virtex-6 FPGA,
correct behavior of the FIFO status flags cannot be guaranteed after the first write.
Workaround: To work around this issue, synchronize the negative edge of reset to RDCLK/WRCLK.
For more information and additional workaround see Answer Record 41099.
5.2 Vivado
1. Description: When Trying to upgrade to latest version of FIFO Generator from older verions, following error message is seen
ERROR: [Common 17-69] Command failed: invalid command name "puts" and Auto Upgradation does not work.
CR 665836
Technical Support
To obtain technical support, create a WebCase at
www.xilinx.com/support. Questions are routed to a team with expertise using this product.
Xilinx provides technical support for use of this product when used according to the guidelines described in the core documentation, and cannot guarantee timing, functionality, or support of this product for designs that do not follow specified guidelines.