Part Number: ASM1042A

Manufacturer: Asmedia

Description: ASMedia new generation of Universal Serial Bus 3.0 extended host controller

Shipped from: Shenzhen/HK Warehouse

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ASMedia’s newest USB 3.0 extended host controller, the ASM1042A, bridges the gap between a PCI Express host bus and two USB 3.0 outputs. It is fully compliant with the existing USB 2.0 standard and is designed for high-speed, low-power data transfer. It is also compatible with the eXtensible Host Controller Interface (xHCI) version 1.0 standard developed by Intel.

The ASM1042A is compatible with Linux, MAC OS, and Win8 WHCK platforms and offers UASP (USB Attach SCSI Protocol) and Debugport functionality. The ASM1042A has seamless integration of ASMedia’s PCI Express, SuperSpeed USB, and USB 2.0 self-design PHYs. The applications for ASM1042A include computers, mobile devices, consumer electronics, and telecommunications.

ASM1042A Features

  • PCI Express Specification Version 2.0 compliant
  • Compliant with the USB 3.0 Revision 1.0 Universal Serial Bus Specification
  • Backward compatible with PCI Express 1.0 and USB 2.0

Data Transfer Rate

  • 0 mode is  up to 480Mbps
  • 0 mode is  up to 5 Gbps
  • Fully plug and play, and hot plug compatible.

ASM1042 Update FAQ

Why Do Some People Disregard Updates to the ASM1042 Driver?

The vast majority of consumers do not bother to perform upgrades to their ASM1042 drivers since they run the risk of experiencing errors or crashes.

What Justifies the Update of ASM1042 Drivers?

By updating the latest version of the appropriate ASM1042 driver, you can improve the performance and reliability of your computer and gain access to additional USB functions. Suppose you install the wrong drivers for your USB device. In that case, you risk your computer becoming unstable, having a slower overall performance, and having incompatible features.

The frequency of ASM1042 driver updates

It is recommended that device drivers for the ASM1042 be updated regularly, often at least a few times each year.

What Do the AS Media Technology Inc. USB Drivers Do, Exactly?

The ASM1042 device you have needs drivers for it to “speak” to the operating system and for it to be able to perform its intended functions. Drivers are little software applications.

What Do the AS Media Technology Inc. USB Drivers Do, Exactly?

A personal computer (PC) or smartphone is an example of a host controller that may communicate with peripheral devices through a standard interface known as a Universal Serial Bus (USB). It connects several peripheral devices, including digital cameras, mouse, keyboards, printers, scanners, media devices, external hard drives, and flash drives. The Universal Serial Bus (USB) has primarily supplanted a variety of interfaces, such as parallel and serial ports, due to its extensive range of applications, which also includes the capacity to transfer power.

A USB is designed to facilitate hot switching and improve plug-and-play functionality. Plug-and-play is a feature that allows a computer’s operating system (OS) to automatically configure and become aware of a newly connected peripheral device without the need to restart the machine. In addition, hot swapping makes it possible to remove and install a new peripheral without restarting the system.

There are a few different varieties of USB connectors to choose from. Most USB cables in the past belonged to one of two categories: type A or type B. The type A interface of the USB 2.0 standard has the shape of a flat rectangle, and it transmits data and provides power when inserted into a hub or a USB host. A mouse and keyboard are two standard devices that employ type A USB connectors. A USB connector of type B has a square shape with angled corners on the outside. It is connected to an upstream port in a device, such as a printer, that employs a cable that may be removed. In addition to transmitting data, the type B connector is responsible for supplying power. Some type B connectors can only provide a power connection since they lack the necessary hardware to transmit data.

These days, modern connectors have taken the place of older ones. For example, the Mini-USB (or Mini-B) connector is no longer used because it has been superseded by the Micro-USB connector and the USB-C cable. Micro-USB cables are typically used for charging smartphones, video game controllers, and specific computer peripherals, as well as for transferring data between these devices. Connectors of the type-C variety quickly overtake micro-USB as the preferred choice in Android-based mobile devices such as smartphones and tablets.

An extensible host controller interface is what it sounds like.

eXtensible Host Controller Interface, also known as xHCI, is a computer interface specification that defines a register-level description of a host controller for a Universal Serial Bus (USB). This host controller can interface with USB 1. x, 2.0, and 3. x compatible devices. xHCI was developed by Microsoft. In some circles, the standard is also known as the USB 3.0 host controller specification.

xHCI is an improvement on both the Open Host Controller Interface (OHCI) and the Universal Host Controller Interface (UHCI) architectures already in place. It manages resources more effectively for mobile hosts with limited power (such as tablets and cell phones), handles a larger variety of speeds within a single standard, and simplifies mixing low-speed and high-speed devices.

What are the Electrical Characteristics of a USB?

Four lines of connection make up a conventional USB, two carrying power (one for +5 V and one for ground). The data transfer uses the other two connection lines. Additionally, USB provides power to linked I/O devices with very little ability.

Data transport over USB can be categorized into two types: low-speed data transfer and high-speed data transfer.

Single-ended signaling, used in low-speed transmission, transmits fluctuating high voltage over one of the two data lines to indicate the signal bit 0 or 1. The other data line is connected to the ground, which is the reference voltage. Single-ended signaling is susceptible to noise.

Differential signaling is the method used for high-speed data transmission. Here, the signal travels along the two twisted-together data lines. Since both data lines in this instance carry the signal, a ground wire is unnecessary. When opposed to single-ended transmission, differential signaling uses low voltages and is less susceptible to noise.

Therefore, the universal serial bus, which connects the I/O devices to the host computer, is the main topic here. We know how it functions and the variety of USB models available.


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