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:
Aug. 17, 2004
Filed:
May. 03, 2000
Eric Bouyoux, Bouc Bel Air, FR;
Bruno Charrat, Aix en Provence, FR;
Nicolas Pangaud, Aix en Provence, FR;
Sean Commercial, Aix en Provence, FR;
Inside Technologies, Saint Clement les Places, FR;
Abstract
The present invention relates to a pipeline microprocessor (MP) comprising a first pipeline stage (ST ) comprising means IPC, MMU, PC, B DEC ) for reading and decoding instructions (CODE , ADRs, ADRd) of a program recorded in a memory (MEM), and a second pipeline stage (ST ), contiguous to the first pipeline stage, comprising two sectors (ST , ST ) activated one after the other during complementary half-cycles of a clock signal (H ) of the microprocessor. The first sector reads data contained in two registers (Rd, Rs) of a bank of registers (BANK , BANK ) of the microprocessor and carries out an operation on the data according to an instruction (CODE , ADRs, ADRd) received at the previous clock cycle. The second sector (ST ) comprises means (B DEC ) to record the result of the operation in a register of the bank of registers (BANK BANK ). Application especially to chip cards.