Tech-No!: Clock Dividers

Here is a good article for Clock Dividers:

"Clock Dividers Made Easy" - (SNUG Boston 2002 paper)

http://www.scribd.com/doc/6868408/Clock-Dividers

"Unusual Clock Dividers" - (Xilinx article)

http://www.nalanda.nitc.ac.in/industry/appnotes/xilinx/documents/xcell/xl33/xl33_30.pdf

Tech-No!: Clock Gating

Here is an article on Clock Gating basics. This is a SNUG2000 article.

"Power Reduction Through RTL Clock Gating"

http://www.eng.auburn.edu/~vagrawal/COURSE/E6270_Fall07/PROJECT/LUO/snug2000.pdf

Tech-No!: Clock Muxing

Here is a good article that talks about various glitch free clock muxing techniques.

"Techniques to make clock switching glitch free"

http://www.eetimes.com/story/OEG20030626S0035

Tech-No!: Clock Domain Crossing (CDC)

1) Understanding Clock Domain Crossing Issues:
The following link describes the basics of Clock Domain Crossing (CDC) and its 3 main issues namely: A) Metastability, B) Data Loss & C) Data Incoherency and the solutions to these issues.
http://www.edadesignline.com/howto/205201913;jsessionid=TR5Q53DPD0BRSQSNDLRSKHSCJUNN2JVN