文章详情

ID: 1352
实例类型: faq
分类: Architecture
相关: PLL/DLL/Clock Routing
产品系列: Platform Manager

搜索答案数据库

Search Text Image

What is the difference between CTimer and the FTimer in the Platform Manager device family?

CTimers are built in the CPLD, these range from 32uSec to 2 seconds. The CPLD supports 3 timers, Timer1-3. Timer4 of the CPLD is dedicated to clock the FPGA timers, labeled FTimer. The FTimers are clocked with this slow clock from OUT16.
PAC-Designer software automatically calculates the settings for Timer4, based on the time delays needed on the FTimers.


http://www.latticesemi.com/documents/RD1079.pdf