The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2006
Filed:
Nov. 20, 2003
Pao-ching Tseng, Taipei, TW;
Ping-cheng Sung, Hsin-Chu, TW;
Ping-sheng Chen, Chia-Yi Hsien, TW;
Li-chun Tu, Taipei, TW;
Pao-Ching Tseng, Taipei, TW;
Ping-Cheng Sung, Hsin-Chu, TW;
Ping-Sheng Chen, Chia-Yi Hsien, TW;
Li-Chun Tu, Taipei, TW;
MediaTek Inc., Hsin-Chu Hsien, TW;
Abstract
A microcontroller with expandable memory banks has a microprocessor, a plurality of memory banks with only one page for storing interrupt service routines(ISR), a memory bank control circuit connected to the microprocessor, and a multiplexer for connecting the microprocessor with the plurality of memory banks. The memory bank control circuit generates a selection signal according to an interrupt signal and a microprocessor interrupt service routine execution end signal. The multiplexer outputs a page selection signal from the microprocessor or outputs a predetermined page selection signal according to the output signal from the memory bank control circuit.