Method apparatus, and system for efficient address and data protocol for a memory
First Claim
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1. A system comprising:
- at least one memory device, coupled to the system, to support an Address-Data Multiplexed protocol in response to a substantially simultaneous assertion of a Row Address Strobe (RAS) signal and a Column Address Strobe (CAS) signal and to support an Address—
Address Multiplexed protocol in response to an assertion of RAS followed by an assertion of CAS.
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Abstract
A memory to support an Address-Data Multiplexed protocol in response to a substantially simultaneous assertion of RAS and CAS, and an Address—Address Multiplexed protocol in response to an assertion of RAS followed by an assertion of CAS.
19 Citations
31 Claims
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1. A system comprising:
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at least one memory device, coupled to the system, to support an Address-Data Multiplexed protocol in response to a substantially simultaneous assertion of a Row Address Strobe (RAS) signal and a Column Address Strobe (CAS) signal and to support an Address—
Address Multiplexed protocol in response to an assertion of RAS followed by an assertion of CAS.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus comprising:
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a memory controller; and
a memory, coupled to the memory controller, to multiplex between an Address-Data Multiplexed protocol and an Address—
Address Multiplexed protocol in response to either;
substantially simultaneous assertion of a Row Address Strobe (RAS) signal and a Column Address Strobe (CAS) signal;
or an assertion of RAS followed by an assertion of CAS. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method to communicate with a memory comprising:
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sending a first address for an Address-Data Multiplexed protocol to the memory in response to a substantially simultaneous assertion of a Row Address Strobe (RAS) signal and a Column Address Strobe (CAS) signal; and
sending a second address for an Address—
Address Multiplexed protocol to the memory in response to an assertion of RAS followed by an assertion of CAS.- View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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Specification