SIMULTANEOUS EDGE TOGGLING IMMUNITY CIRCUIT FOR MULTI-MODE BUS

摘要

A device is provided comprising a shared bus including a first and a second line, a first subset of devices and a second subset of devices coupled to the shared bus. The first subset of devices may be configured to operate according to a first protocol mode. The second subset of devices may be configured to operate according to a second protocol mode, wherein the second protocol mode is distinct from the first protocol mode. A first device within the first subset of devices may include a receiver circuit adapted to adjust a signal transition occurring on the first line while the second line is in a first logical state so that the signal transition instead occurs when the second line is in a second logical state. The signal transition is adjusted only if it occurs within a threshold amount of time from a second transition on the second line.

主权项

1. A device, comprising:
a shared bus including a first line and a second line; a first subset of devices coupled to the shared bus and configured to operate according to a first protocol mode over the shared bus; a second subset of devices coupled to the shared bus and configured to operate according to a second protocol mode over the shared bus, wherein the second protocol mode is distinct from the first protocol mode; and a first device within the first subset of devices, the first device including a receiver circuit adapted to adjust a signal transition occurring on the first line while the second line is in a first logical state so that the signal transition instead occurs when the second line is in a second logical state opposite the first logical state, wherein the signal transition is adjusted only if it occurs within a threshold amount of time from a second transition on the second line.