Asymmetrical IO Method and System
First Claim
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1. A system, comprising:
- a client device configured to transmit data to a host device, receive data from a host device, and transmit client clock phase information to the host device during an electrical turnaround time between read and write operations over a data bus coupling the client device and the host device; and
a host device configured to receive the client clock phase information from the client device, the host device comprising shared data synchronization resources that use the client clock phase information to adjust a host clock for transmitting data to the at least one client device, wherein the shared resources are shared between transmit and receive functions of the host device.
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Abstract
An asymmetrical IO method and system are described. In one embodiment, a host device includes shared resources for data synchronization of the host device and a client device. The shared resources include a shared phase interpolator. In an embodiment, data lines between the host and client are also used to transmit phase information from the client device to the host device, obviating the need for additional, dedicated lines or pins.
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Citations
2 Claims
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1. A system, comprising:
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a client device configured to transmit data to a host device, receive data from a host device, and transmit client clock phase information to the host device during an electrical turnaround time between read and write operations over a data bus coupling the client device and the host device; and a host device configured to receive the client clock phase information from the client device, the host device comprising shared data synchronization resources that use the client clock phase information to adjust a host clock for transmitting data to the at least one client device, wherein the shared resources are shared between transmit and receive functions of the host device.
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2-20. -20. (canceled)
Specification