The new 3Ci platform can be customized to include customer intellectual property, such as an 80,000- gate hard disk controller, host interfaces such as IEEE 1394 as well as other ARM microprocessors or unique functions to serve emerging markets such as storage area networks, audio/video or MP3 audio.
http://www.cirrus.com/en/press/releases/P21.html
This CPU was also the source of a Debaticle against Fujitsu hard drives. The chemical used in this chip to make it fire retardent (Red Phosporous) also breaks down the chip, causing millions of defective hard drives.