Data processor incorporating a ferroelectric memory array select

Details Data processor incorporating a ferroelectric memory array select Data processor incorporating a ferroelectric memory array select

1996-10-21

1999-03-30

Swann, Tod R.

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

711106, 711149, 365233, 365195, 365145, 365 49, G06F 1200

Patent

active

058901990

ABSTRACT:
A data processor incorporating a memory array which is selectably configurable as either read/write or read only memory or the combination of both read/write and read only memory includes a memory mapper for receiving logical addresses from an arithmetic logic unit ("ALU") and converting the same to physical addresses within the memory array in accordance with configuration instructions stored in a local non-volatile memory. By utilizing a common memory technology for the memory array, such as non-volatile ferroelectric random access memory ("FRAM"), the proportions and layout of the memory array which may be utilized for MPU instructions and data may be selectably controlled. The use of a memory mapper also allows for the establishment of an effective password or encryption protection function for the memory array data of particular utility in conjunction with radio frequency identification ("RF/ID") transponders and other applications which must store sensitive data in non-volatile storage.

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