Daisy chain cascading devices
First Claim
1. An apparatus having a plurality of devices configured in a daisy chain cascade arrangement, the apparatus comprising:
- a first memory device having;
(a) memory, (b) a first input for receiving address information associated with a memory location in the memory, (c) a first output configured to output data contained in the memory location from the first device; and
a second memory device having;
(a) a first input coupled to the first output of the first device and configured to receive the data outputted from the first device.
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Abstract
A technique for serially coupling devices in a daisy chain cascading arrangement. Devices are coupled in a daisy chain cascade arrangement such that outputs of a first device are coupled to inputs of a second device later in the daisy chain to accommodate the transfer of information, such as data, address and command information, and control signals to the second device from the first device. The devices coupled in the daisy chain comprise a serial input (SI) and a serial output (SO). Information is input to a device via the SI. The information is output from the device via the SO. The SO of an earlier device in the daisy chain cascade is coupled to the SI of a device later in the daisy chain cascade. Information input to the earlier device via the device'"'"'s SI is passed through the device and output from the device via the device'"'"'s SO. The information is then transferred to the later device'"'"'s SI via the connection from the earlier device'"'"'s SO and the later device'"'"'s SI.
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Citations
20 Claims
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1. An apparatus having a plurality of devices configured in a daisy chain cascade arrangement, the apparatus comprising:
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a first memory device having;
(a) memory, (b) a first input for receiving address information associated with a memory location in the memory, (c) a first output configured to output data contained in the memory location from the first device; and
a second memory device having;
(a) a first input coupled to the first output of the first device and configured to receive the data outputted from the first device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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inputting, into a first input of a first memory device, address information associated with a memory location of memory contained in the first memory device;
accessing data in memory contained in the first memory device at the memory location; and
coupling a first output of the first device to a first input of a second memory device to allow the accessed data to be transferred from the first memory device to the second memory device. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An apparatus comprising:
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means for inputting, into a first input of a first memory device, address information associated with a memory location of memory contained in the first memory device;
means for accessing data in memory contained in the first memory device at the memory location; and
means for coupling a first output of the first device to a first input of a second memory device to allow the accessed data to be transferred from the first memory device to the second memory device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification