How to ues storage primitives

[SYosh17]

Hi, all

I want to use Storage Primitives, for example SRFF in following site.

https://www.intel.com/content/www/us/en/programmable/quartushelp/18.1/index.htm#hdl/prim/prim_file_srff.htm

The format of the primitive is shown in the link.
However, there is no mention of some pin roles.

Could you please tell me where is the documents describing more detail of these primitives?

I am using Cyclone V GX Development Kit and Quartus Prime Standard 18.1 on Windows 10.

[Kenny_Tan]

Hi,

You may find the details here https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_low_level.pdf

[SYosh17]

Dear KennyT,

Thank you for your reply.

I read the document, but I can't find description about storage primitive(JKFF, JKFFE, LATCH, DLATCH, SRFF, SRFFE, TFF, TFFE).

https://www.intel.com/content/www/us/en/programmable/quartushelp/18.1/hdl/prim/prim_file_srff_d1455e140.htm

A verilog code example is here. What is the role of "prn" pin? 
I want to know more detail about these storage primitive.

[sstrell · Accepted solution]

prn is asynchronous preset, active low.  I found this thread about it:

https://www.reddit.com/r/EngineeringStudents/comments/2zd17o/flip_flop_simulation_files_in_quartus/

[SYosh17]

Dear sstrell,

Thank you for your reply and sorry for late reply.
The link helps me!

Sincerely yours,
SYosh17

[Kenny_Tan]

Since this thread had been answered, we shall close this thread. If you still need further assistance, you are welcome to post a response within 15days or open a new thread, some one will be right with you.