哪位大神可以讲一下set_scan_configuration中-internal_clock single和multi的区别

flyingsheep

哪位大神可以讲一下set_scan_configuration中-internal_clock single和multi的区别，看synopsys的文档没太看明白：

• single
The insert_dft command treats any internal clocks in the design as separate
clocks for the purpose of scan chain architecting. The single value stops at
the first buffer or inverter driving the flip-flops clock.
• none
The insert_dft command does not treat internal clocks as separate clocks.
This is the default value.
• multi
The insert_dft command treats any internal clocks in the design as separate
clocks for the purpose of scan chain architecting. The multi value jumps over
any buffers and inverters, stopping at the first multi-input gate driving the
flip-flops clock.
The -internal_clocks setting is common to all multimode scenarios. As a
result, this option can be specified only if the -test_mode option value is
set to ’all’. Otherwise, the tool issues a warning message, ignores the -
internal_clocks option, and processes the remaining set_scan_configuration
options.

zero_0

建议你在 DFT UG 里 search "internal clock"

zhanggd

DFT_Compiler_User_Guide_Ver_I-2013.12-SP2.pdf (3.79 MB, 下载次数: 111 )

2017-1-19 19:17 上传

点击文件名下载附件

这里面就有详细的解释，搜一下internal clocks

zlocoroco

谢谢~

RayCing

thanks very much