HUB DEVICES AND METHODS FOR INITIALIZING HUB DEVICE

摘要

A hub device and corresponding method include a first chip having at least a first upstream port and a plurality of first downstream ports, a second chip, having at least a second upstream port and at least one second downstream port; and an external memory device, storing firmware data corresponding to the first chip and the second chip. One one of the first downstream ports of the first chip is coupled to the second upstream port of the second chip to form a tiered hub, and the first chip and the second chip are sequentially enabled and the first chip and the second chip sequentially load the corresponding firmware data.

主权项

1. A hub device, comprising:
a first chip, comprising at least a first upstream port and a plurality of first downstream ports; a second chip, comprising at least a second upstream port and at least one second downstream port; and an external memory device, storing firmware data corresponding to the first chip and the second chip, wherein one of the first downstream ports of the first chip is coupled to the second upstream port of the second chip to form a tiered hub, and the first chip and the second chip are sequentially enabled and the first chip and the second chip sequentially load the corresponding firmware data, and wherein the first chip is enabled in response to a first start-up signal to read the firmware data corresponding to the first chip and the second chip from the external memory device, and wherein the second chip is enabled in response to a second start-up signal to receive the firmware data corresponding to the second chip from the first chip.