Abstract:
An electronic device has a management data input/output (MDIO) bus, a control unit, and an MDIO master. The control circuit receives a host command from a host device, and outputs a plurality of MDIO commands in response to the host command. The MDIO master receives the MDIO commands from the control circuit, and transmits the MDIO commands to the MDIO bus.
Abstract:
A direct memory access (DMA) system is implemented in an electronic device that communicates with a host device via a communication bus, and includes an available descriptor notification circuit and a DMA controller. The available descriptor notification circuit indicates whether at least one valid descriptor is available in the host device. The available descriptor notification circuit is set by at least the host device. The at least one valid descriptor records DMA data transfer control information. The DMA controller fetches the at least one valid descriptor from the host device when the available descriptor notification circuit indicates that the at least one valid descriptor is available in the host device, and refers to the at least one valid descriptor fetched from the host device to perform a DMA data transfer between the electronic device and the host device.
Abstract:
An electronic device includes a control circuit and a bus interface. The control circuit packs a plurality of commands in a compound command frame. The bus interface communicates with another electronic device via a bus between the electronic device and the another electronic device, and packs the compound command frame in a single packet and transmits the single packet over the bus.
Abstract:
An electronic device includes a control circuit and a bus interface. The control circuit packs a plurality of commands in a compound command frame. The bus interface communicates with another electronic device via a bus between the electronic device and the another electronic device, and packs the compound command frame in a single packet and transmits the single packet over the bus.
Abstract:
An electronic device has a management data input/output (MDIO) bus, a control unit, and an MDIO master. The control circuit receives a host command from a host device, and outputs a plurality of MDIO commands in response to the host command. The MDIO master receives the MDIO commands from the control circuit, and transmits the MDIO commands to the MDIO bus.