Patent Number: 6,311,246

Title: IC with dual function clock and device ID circuit

Abstract: An integrated circuit in which the address and data inputs for a clock register to program a clock is also used for device ID and revision number. A shadow register is provided which is accessible to output the ID and revision number when (1) the regular clock register is addressed, and (2) a particular data input for activating the shadow register appears on the data input to the clock register.

Inventors: Wegner; Glenn A. (Cupertino, CA), Khachaturian; Art (San Jose, CA)

Assignee: Exar Corporation

International Classification: G06F 13/38 (20060101); G06F 013/38 ()

Expiration Date: 10/30/2018