• 当前位置:
  • 首页
  • >
  • PDF资料
  • >
  • EN093 PDF文件及第1页内容在线浏览

EN093

EN093首页预览图
型号: EN093
PDF文件:
  • EN093 PDF文件
  • EN093 PDF在线浏览
功能描述: Spartan-3E XC3S1200E FPGA Errata
PDF文件大小: 63.58 Kbytes
PDF页数: 共2页
制造商: XILINX[Xilinx, Inc]
制造商LOGO: XILINX[Xilinx, Inc] LOGO
制造商网址: http://www.xilinx.com
捡单宝EN093
PDF页面索引
120%
EN093 (v1.0) October 19, 2007 www.xilinx.com 1
Errata Notice
© 2007 Xilinx, Inc. All rights reserved. All Xilinx trademarks, registered trademarks, patents, and disclaimers are as listed at http://www.xilinx.com/legal.htm.
All other trademarks and registered trademarks are the property of their respective owners. All specifications are subject to change without notice.
Hardware Errata
There are no errata for the Spartan-3E XC3S1200E FPGA.
See the “Production Stepping” section in the data sheet for additional information:
http://www.xilinx.com/bvdocs/publications/ds312.pdf
Advisories
This section advises designers of any potential software changes that may affect their XC3S1200E FPGA applications.
Table 1 summarizes the advisories and indicates which software update will correct the issue.
Persist I/O Conflict
Applications affected
This issue affects applications that use the Persist option in the Bitstream Generator and use configuration address
pins A20-A23 in the design. The current software allows this conflict between Persist and user functionality, so the
user must be careful to avoid this situation. Persist is set to No by default, and can be enabled by Persist:Yes at the
command line or "Allow SelectMAP Pins to Persist" in the Project Navigator. Persist is most commonly used to allow
Readback through the Slave Parallel (SelectMAP) configuration port after configuration. This issue affects all
XC3S1200E devices.
Description
Using the Persist option in the Bitstream Generator, and setting the Mode pins to a parallel configuration mode
including Byte Peripheral Interface (BPI) or Slave Parallel (SelectMAP) modes, will retain the parallel configuration
interface. This is useful when configuring in the SelectMAP mode to allow configuration commands such as
Readback to be used after configuration. The pins affected by Persist cannot be used in the design, including M[2:0],
CCLK, D[7:0], INIT_B, CSI_B, RDWR_B, and BUSY, as described in the documentation.
The issue is that Persist will block four additional specific dual-purpose I/Os from use by the design when Persist is
enabled and the Mode pins are set for a parallel configuration mode. These pins become disconnected from the
user design when Persist is used and therefore cannot be used by the design. If unused in the design, these pins will
have a weak pull-down resistor when Persist is used. If used in the design, the pin state is design-dependent.
The affected I/Os are the highest order address lines for the configuration interface, A20-A23. The associated pin
numbers are shown in Ta bl e 2 . No other address lines will be affected by Persist.
This issue affects all Spartan-3E part/package combinations that support A20-A23. This issue does not affect the
XC3S100E device, or the VQ(G)100 and TQ(G)144 packages.
0
Spartan-3E XC3S1200E FPGA
Errata
EN093 (v1.0) October 19, 2007
00
Errata Notice
Table 1: Advisories and Software Update
Advisory ISE™ Software Version
“Persist I/O Conflict” 10.1
购买、咨询产品请填写询价信息:(3分钟左右您将得到回复)
询价型号*数量*批号封装品牌其它要求
删除
删除
删除
删除
删除
增加行数
  •  公司名:
  • *联系人:
  • *邮箱:
  • *电话:
  •  QQ:
  •  微信:

  • 关注官方微信

  • 联系我们
  • 电话:13714778017
  • 周一至周六:9:00-:18:00
  • 在线客服:

天天IC网由深圳市四方好讯科技有限公司独家运营

天天IC网 ( www.ttic.cc ) 版权所有©2014-2023 粤ICP备15059004号

因腾讯功能限制,可能无法唤起QQ临时会话,(点此复制QQ,添加好友),建议您使用TT在线询价。

继续唤起QQ 打开TT询价