感谢google和周蓝郡!
一般的super/io 提供 ps/2,窜口,并口,软盘,风扇,RTC,GPIO等功能,补充或加强某些南桥的功能。
Intel 810 Chipset之後在主板上出現的一個芯片,主要是控制一些 超低速的設備
如上所說的 ps/2,窜口,并口,软盘等!
(21时39分56秒) 周蓝郡: Super I/O" is the name given to a class of I/O controller integrated circuits that began to be used on personal computer motherboards in the late 1980s. A super I/O chip combines interfaces for a variety of low-bandwidth devices. The functions provided usually include:
A floppy disk controller.
A parallel port (commonly used for printers)
One or more serial ports.
A mouse interface.
A keyboard interface.
A super I/O chip may also have other interfaces, as for a joystick or infrared port. By combining many functions in a single chip, the number of parts needed on a motherboard is reduced, thus reducing the cost.
The original super I/O chips communicated with the CPU via a connection with an ISA bus. With the evolution away from ISA towards use of the PCI bus, the Super I/O chip was often the biggest remaining reason for continuing inclusion of ISA on the motherboard.
Modern super I/O chips use the Low Pin Count (LPC) bus instead of ISA for communication with the CPU. This normally occurs through an LPC interface on the southbridge chip of the motherboard.
(21时42分11秒) 周蓝郡: 简单的说,Super I/O 就是联结过去的纽带!由于更高性能宽带设备的出现,USB2.0 及 IEEE 1394 等一系列产品很快成为许多应用设备的必备品,而这个时候正是 PC 和接口技术竞先蓬勃发展的时期,可是即使这样,你也不能低估了至今仍在使用的一些接口设备的重要性,比如键盘、鼠标及软盘。尤其是很多嵌入式应用软件,操作它们时仍需要这些老式输入/输出设备。因此,如果您拥有以 Super I/O 控制器为代表的、凝聚了威盛智慧的半导体产品,这些问题就可以迎刃而解了。
威盛 Super I/O 保留了所有输入/输出 (I/O) 接口的主要特征,而这些特征都包含在小小的一块芯片板上,由于使用起来灵活省电,又性能符合国际标准,携带方便,而且可配合多种威盛产品,Super I/O 成为旧式设备的最佳选择,比如 OEM 厂商、主板、笔记本电脑及个人电子设备生产商等。在 Super I/O 控制器支持下,威盛电子向客户提供的半导体平台拓展到了更为广阔的领域。
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