Patent ID: 7382681
Filing Date: 2008-06-03
Classification: G06F,G11C,H03K,H03L

Abstract:
1. A semiconductor integrated circuit device on a semiconductor chip, comprising: (a) an internal bus; (b) a central processing unit coupled to the internal bus; (c) a random access memory coupled to the internal bus and used for a work area of the central processing unit; (d) a flash memory coupled to the internal bus and storing control information; (e) an internal oscillator circuit module including: (f) an output terminal coupled to the internal oscillator circuit module, and operable to output the internal clock signal to outside the semiconductor integrated circuit device, wherein the control information is stored in the flash memory at a predetermined region that is accessible as a rewriteable region of the flash memory, and wherein the control information stored in the flash memory is loaded to the control data register and the central processing unit is adapted to update the control information stored in the flash memory.