Apparatus and method for producing IDS for interconnected devices of mixed type
First Claim
1. A system comprising a plurality of mixed type memory devices including at least first and second devices in a serial interconnection configuration, the first device having serial input and output connections, the second device having a serial input connection, the serial input connection of the first device being coupled to a serial output connection of a previous device, the serial output connection of the first device being coupled to the serial input connection of the second device, the first device comprising:
- a receiver for receiving a device identifier (ID) and a device type (DT) through the serial input connection thereof;
a device information provider for providing DT information (DTI) of the first device;
a determiner for determining whether the received DT matches the DTI of the first device to provide a determination result of a match result or a non-match result;
an ID producer for producing an ID in response to the match result; and
a signal output provider for outputting the received ID in response to the non-match result.
11 Assignments
0 Petitions
Accused Products
Abstract
A plurality of memory devices of mixed type (e.g., DRAMs, SRAMs, MRAMs, and NAND-, NOR-, 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 are fed to one device of the serial interconnection configuration. 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. The generated ID is transferred to another device of the serial interconnection. In a case of no match, the ID generation is skipped and no ID is generated for another device. Such a device type match determination and ID generation or skip are performed in all devices of the serial interconnection.
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Citations
45 Claims
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1. A system comprising a plurality of mixed type memory devices including at least first and second devices in a serial interconnection configuration, the first device having serial input and output connections, the second device having a serial input connection, the serial input connection of the first device being coupled to a serial output connection of a previous device, the serial output connection of the first device being coupled to the serial input connection of the second device, the first device comprising:
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a receiver for receiving a device identifier (ID) and a device type (DT) through the serial input connection thereof; a device information provider for providing DT information (DTI) of the first device; a determiner for determining whether the received DT matches the DTI of the first device to provide a determination result of a match result or a non-match result; an ID producer for producing an ID in response to the match result; and a signal output provider for outputting the received ID in response to the non-match result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for assigning a device identifier at a first device coupled to a second device in a serial interconnection configuration of mixed type memory devices, 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 method comprising:
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receiving a device identifier (ID) and a device type (DT) through the serial input connection of the first device; providing device type information (DTI) of the first device; determining whether the DTI of the first device matches the received DT to provide a determination result of a match result or a non-match result; producing an ID in response to the match result; and outputting the produced ID in response to the match result, and the received ID in response to the non-match result. - View Dependent Claims (13, 14, 15, 16, 17)
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18. An apparatus for producing a device identifier at a first device coupled to a second device in a serial interconnection configuration of mixed type memory devices, 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) through the serial input connection of the first device; a device type provider for providing device type information (DTI) of the device; a determiner for determining whether the received DT matches the DTI of the first device to provide a determination result of a match result or a non-match result; an ID producer for producing an ID in response to the match result; a signal output provider for outputting the produced ID in response to the match result, and the received ID in response to the non-match through the serial output connection of the first device. - View Dependent Claims (19, 20, 21, 22)
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23. A method for determining a device identifier of one of a plurality of mixed type memory devices in a serial interconnection configuration, the method comprising:
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receiving a first value corresponding to a device identifier (ID) and a second value corresponding to a device type (DT); comparing the second value to a device type number (DTN) stored at a first device; and producing a match signal that indicates whether the second value corresponds to the DTN; producing an ID when the second value corresponds to the DTN; outputting a selected ID by; selecting the produced ID when the second value corresponds to the DTN, and selecting the received ID when the second value does not correspond to the DTN. - View Dependent Claims (24, 25, 26)
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27. An apparatus for assigning a device identifier for use in a plurality of mixed type memory devices 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 apparatus comprising:
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a device information provider for providing device type information (DTI) of the plurality of mixed type memory devices; a determiner for determining whether the provided DTI matches a received device type (DT) to provide a determination result of a match; and an ID producer for producing a device identifier (ID) in response to the match result. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. A method for assigning a device identifier at a first device coupled to a second device in a serial interconnection configuration of mixed type memory devices, 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 method comprising:
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receiving a device type (DT) through the serial input connection of the first device; providing a reference DT of the device; determining whether the reference DT of the device matches the received DT to provide a determination result of a match result or a non-match result; receiving a device identifier (ID) through the serial input connection of the first device; producing an ID in response to the match result; and outputting the produced ID in response to the match result; and the received ID in response to the non-match. - View Dependent Claims (36, 37, 38)
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39. A method for assigning a device identifier for a plurality of mixed type memory devices 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); holding the received DT at each of the devices; determining whether the DT matches a reference DT associated with each of the devices to provide a determination result of a match or a non-match; providing a device identifier (ID) to one of the devices in response to the match result, through the serial input connection of that device; and at the device wherein the ID is provided, conducting an ID assignment in response to the determination result at that device. - View Dependent Claims (40, 41, 42, 43, 44, 45)
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Specification