Interface for memory readout from a memory component in the event of fault
First Claim
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1. An integrated circuit (IC) memory component comprising:
- a memory core;
a primary interface including data input/output (I/O) circuitry and control/address (C/A) input circuitry, the primary interface for accessing the memory core during a normal mode of operation; and
a secondary interface for accessing the memory core during a fault mode of operation, the fault mode of operation initiated in response to a detected fault in the IC memory component, wherein the fault is detected by an error code.
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Abstract
Memory controllers, devices, modules, systems and associated methods are disclosed. In one embodiment, an integrated circuit (IC) memory component is disclosed that includes a memory core, a primary interface, and a secondary interface. The primary interface includes data input/output (I/O) circuitry and control/address (C/A) input circuitry, and accesses the memory core during a normal mode of operation. The secondary interface accesses the memory core during a fault mode of operation.
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Citations
19 Claims
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1. An integrated circuit (IC) memory component comprising:
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a memory core; a primary interface including data input/output (I/O) circuitry and control/address (C/A) input circuitry, the primary interface for accessing the memory core during a normal mode of operation; and a secondary interface for accessing the memory core during a fault mode of operation, the fault mode of operation initiated in response to a detected fault in the IC memory component, wherein the fault is detected by an error code. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A memory module comprising:
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a primary databus connector; multiple IC memory components coupled to the primary databus connector, each IC memory component including a memory core, a primary interface including data input/output (I/O) circuitry and control/address (C/A) input circuitry, the primary interface for accessing the memory core during a normal mode of operation, and a secondary interface for accessing the memory core during a fault mode of operation, the fault mode of operation initiated in response to a detected fault in the IC memory component, wherein the fault is detected by an error code; a secondary data bus formed on the module; and wherein the secondary interface from each of the multiple IC components is coupled to the secondary bus. - View Dependent Claims (13, 14, 15)
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16. A memory system comprising:
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a memory controller; and a first memory module coupled to the memory controller via a primary databus, the first memory module including a primary databus connector; multiple IC memory components coupled to the primary databus connector, each IC memory component including a memory core, a primary interface including data input/output (I/O) circuitry and control/address (C/A) input circuitry, the primary interface for accessing the memory core during a normal mode of operation, and a secondary interface for accessing the memory core during a fault mode of operation, the fault mode of operation initiated in response to a detected fault in the IC memory component, wherein the fault is detected by an error code; a secondary data bus formed on the module; and wherein the secondary interface from each of the multiple IC components is coupled to the secondary bus. - View Dependent Claims (17, 18, 19)
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Specification