| 摘要 |
<p>A bus driver circuit arrangement that adjusts the slew rate of the bus driver when operating conditions indicate unacceptable slew rate variations. According to one embodiment, the bus driver circuit includes a slew rate indicator circuit having a process-voltage-temperature detector (PVT) circuit. The PVT detector circuit includes a plurality of delay elements coupled in a chain, wherein the plurality of delay elements are configured to receive a trigger signal that propagates through the delay elements for a predetermined period of time. The delay elements generate a process-voltage-temperature (PVT) code at the end of the predetermined period of time. The PVT code corresponds to PVT operating conditions of the PVT detector circuit. The PVT code varies with the PVT operating conditions of the PVT detector circuit and the bus driver circuit, and may affect the slew rate of the bus driver circuit.</p> |
