AN 738:Intel® Arria® 10器件设计指南

ID 683555
日期 6/30/2017
Public
文档目录

1.4.3.1. DCLK 和 TCK 信号完整性

The TCK and/or DCLK traces should produce clean signals with no overshoot, undershoot, or ringing. When designing the board, lay out the TCK and DCLK traces with the same techniques used to lay out a clock line. Any overshoot, undershoot, ringing, or other noise on the TCK signal can affect JTAG configuration. A noisy DCLK signal can affect configuration and cause a CRC error. For a chain of devices, noise on any of the TCK or DCLK pins in the chain could cause JTAG programming or configuration to fail for the entire chain.

表 21.  DCLK和TCK信号完整性
编号 是否完成? 检查表项目
1   将配置DCLKTCK管脚设计成无噪声的。