On-chip/off-chip memory switching using system configuration bit

Details On-chip/off-chip memory switching using system configuration bit On-chip/off-chip memory switching using system configuration bit

1992-11-09

1995-06-20

Robertson, David L.

Boots, shoes, and leggings

364243, 364246, 36424611, G06F 1212

Patent

active

054267595

ABSTRACT:
A processor fabricated in a semiconductor chip has on-chip program memory and access to off-chip program memory. Switching between the on-chip memory and the off-chip memory is effected in the course of program execution, without using a pin-out of the device package in which the processor is housed or encapsulated, by writing a system configuration bit stored in a memory location shared by the on-chip and off-chip memories to a "1" or a "0" according to whether the program instruction is to be executed from the on-chip memory or the off-chip memory.

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