Static information storage and retrieval – Magnetic bubbles – Guide structure
Patent
1990-10-01
1996-05-28
Swann, Tod R.
Static information storage and retrieval
Magnetic bubbles
Guide structure
395494, 365203, 365222, 364DIG1, G06F 106, G06F 104, G06F 108
Patent
active
055220649
ABSTRACT:
A data processing system includes a memory controller for accessing a dynamic memory having a plurality of SIMMs (Single In-line Memory Modules) that differ in size and speed of operation. The memory controller is operable, in response to an access request for a given SIMM, to read from a SIMM definition register and dynamically produce memory access signals in accordance with the timing requirements of the particular SIMM being accessed. Such signals are set each time a SIMM is accessed. The signals provide different clock periods of RAS precharge time, RAS (Row Address Strobe) to CAS (Column Address Strobe) time, and CAS pulse width, depending on the SIMM being accessed.
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IBM Technical Disclosure Bulletin. "Dynamic Random Access Memory Controller State Machine". vol. 30, No. 8, Jan. 1988, pp. 96-98.
Aldereguia Alfredo
Bland Patrick M.
Cromer Daryl C.
Stutes Rodger M.
Grosser George E.
International Business Machines - Corporation
Peikari B.
Swann Tod R.
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