Memory system having memory controller for controlling different types of memory chips
AssigneeFujitsu Limited
InventorYoshihiro Takemae
Life of this patent
Estimating the term…
Abstract
A memory controller converts controller output signals output from a controller into memory input signals according to the operation specifications of memory chips to operate, and outputs the resultant to the memory chips through a common bus. The memory controller also receives memory output signals output from the memory chips through the common bus, and converts the received signals into controller input signals receivable to the controller. This allows the single memory controller to access the plurality of types of memory chips. As a result, the memory controller can be reduced in chip size, lowering the cost of the memory system.
Claims15
A memory system comprising:
- a plurality of different types of memory chips operating in synchronization with a clock signal;
- a controller for outputting controller output signals to access said memory chips;
- a memory controller for converting said controller output signals into memory input signals according to operation specifications of said respective memory chips, and converting memory output signals output from said memory chips into controller input signals receivable to said controller;
- and
- a common bus for connecting said memory chips and said memory controller to transmit said memory input signals and said memory output signals.
Dependencies are inferred from the claim text.