APPARATUS AND METHOD FOR PRODUCING DEVICE IDENTIFIERS FOR SERIALLY INTERCONNECTED DEVICES OF MIXED TYPE
First Claim
1. A method for producing a device identifier (ID) for a device, comprising:
- receiving a device type (DT) and an input ID;
determining the DT of the device in response to the received DT;
outputting an output ID in accordance with a determination result; and
providing the output ID accompanying the received DT to an other device, the devices being interconnected to each other.
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Accused Products
Abstract
A plurality of memory devices of mixed type (e.g., DRAMs, SRAMs, MRAMs, and NAND-, NOR- and AND-type Flash memories) are serially interconnected. Each device has device type information on its device type. A specific device type (DT) and a device identifier (ID) contained in a serial input (SI) as a packet are fed to one device of the serial interconnection. The device determines whether the fed DT matches the DT of the device. In a case of match, a calculator included in the device performs calculation to generate an ID for another device and the fed ID is latched in a register of the device. In a case of no-match, the ID generation is skipped and no ID is generated for another device. The DT is combined with the generated or the received ID depending on the device type match determination. The combined DT and ID is as a packet transferred to a next device. Such a device type match determination and ID generation or skip are performed in all devices of the several interconnection. With reference to device type provided to the interconnected devices, IDs are sequentially generated. The SI containing the DT, the ID and an ID generation command is transmitted in a packet basis to a next device.
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Citations
52 Claims
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1. A method for producing a device identifier (ID) for a device, comprising:
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receiving a device type (DT) and an input ID; determining the DT of the device in response to the received DT; outputting an output ID in accordance with a determination result; and providing the output ID accompanying the received DT to an other device, the devices being interconnected to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for use in a device, comprising:
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a receiver for receiving a device type (DT) and a device identifier (ID); a determiner for determining the DT of the device from the received DT; an ID provider for outputting an ID in accordance with a determination result; and an output provider for providing the outputted ID accompanying the received DT to another device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An apparatus for assigning a device identifier at a first device coupled to a second device in a serial interconnection configuration of memory devices of mixed type, the first device having a serial input connection coupled to a serial output connection of a previous device in the serial interconnection configuration, the second device having a serial input connection coupled to a serial output connection of the first device, the apparatus comprising:
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a receiver for receiving a device identifier (ID) and a device type (DT), the ID and DT being provided through the serial input connection of the device; a determiner for determining the DT of the device from the received DT; an ID provider for outputting an ID in accordance with a determination result; and an output provider for providing the outputted ID accompanying the received DT to an other device. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method for assigning a device identifier (ID) for one of a plurality of devices of mixed type in a serial interconnection configuration, a first device having a serial input connection coupled to a serial output connection of a previous device, a second device having a serial input connection coupled to a serial output connection of the first device, the method being adopted to at least one of the devices, the method comprising:
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receiving an input ID and a device type (DT) through the serial input connection of the device; determining the DT of the device from the received DT; outputting an output ID in response to a determination result; and providing a combination of the received DT and the outputted ID. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A method for assigning a device identifier (ID) for a plurality of devices of mixed type in a serial interconnection configuration, a first device having a serial input connection coupled to a serial output connection of a previous device, a second device having a serial input connection coupled to a serial output connection of the first device, the method comprising:
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receiving a device type (DT) and an input ID through the serial input connection; holding the received DT at a device; determining whether the received DT matches a reference DT associated with the device; obtaining a calculated ID or a non-calculated ID in response to a determination result; combining the received DT with the calculated or non-calculated ID; providing the combined DT and ID through the serial output connection of the device; and performing an ID assignment in response to the determination result at the device. - View Dependent Claims (50, 51, 52)
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Specification