在高性能微机EISA总线和外部设备SCSI总线之间设置复旦大学计算机系研制成功的FD-EISA-SCSI主适配器,可使系统与外设的数据传输速率得到较大提高,是解决系统I/O瓶颈问题的一种有效方法。由于这种主适配器用到的器件密度大,有些器件本身功能特别强,引脚多达百个以上,同时,主适配器上时钟频率最高为40兆,如果引线之间走向不当,就会产生电平波动。这个问题可通过对发送的信息流(地址或数据)进行SL编码来有效解决。 Setting up the FD-EISA-SCSI master adapter developed by Fudan University’s computer science department between the high-performance microcomputer EISA bus and the external device SCSI bus can greatly improve the data transmission speed of the system and peripherals and solve the problem of system I / O An effective way to solve the bottleneck problem. Due to the density of the devices used in this master adapter, some devices have very powerful functions, with more than a hundred pins. At the same time, the clock frequency on the master adapter is up to 40 megabytes. If the leads are improperly oriented, they generate electricity Fluctuations. This problem can be effectively addressed by SL coding the transmitted traffic (address or data).