支持干/濕接觸
系統(tǒng)熱重啟后保留zui后輸出值
中斷處理能力
“范式匹配”和“狀態(tài)改變”中斷功能
輸出狀態(tài)重讀
關鍵輸入/輸出監(jiān)控的“范式匹配”和
“狀態(tài)改變”中斷功能
中斷輸出引腳同時觸發(fā)外部設備中斷

概 述

PCM-3753I is a 96-bit digital I/O card for the PC-104 Plus bus. The card emulates mode 0 of the 8255 PPI chip, but the buffered circuits offer a higher driving capability than the 8255. The 96 I/O lines are divided into twelve 8-bit I/O ports: A0, B0, C0, A1, B1, C1, A2, B2, C2, A3, B3 and C3. You can configure each port as input or output via software.