主要特点
up to 192 (96+96) ttl digital i/o lines
96/192位数字量i/o
emulates mode 0 of 8255 ppi
仿真8255ppi模式0
buffered circuits for higher driving capacity than 8255
多中断源处理能力
multiple-source interrupt handling
提供比8255更高的驱动能力缓冲电路
interrupt output pin for simultaneously triggering external devices with the interrupt
输出状态回读
output status read-back
“pattern match” and “change of state” interrupt functions for critical i/o monitoring
keeps i/o setting and digital output values when hot system reset
supports dry contact and wet contact
high-density 100-pin scsi connector
内容介绍
pci-1753是一款pci总线的96路数字量i/o卡,它也可以经由pci-1753e扩展为192路的数字量i/o口.pci-1753仿真8255ppi模式0,但是缓存电路提供了比8255更高的驱动能力.96路i/o线分成了12个8位i/o端口:a0,b0,co,a1,b1,c1,a2,b2,c2,a3,b3和c3.用户可以使用软件配置每个端口作为输入或输出端口.
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