io
I/O输入/输出(Input/Output),分为IO设备和IO接口两个部分。在POSIX兼容的系统上,例如Linux系统[1],I/O操作可以有多种方式,比如DIO(DirectI/O),AIO(AsynchronousI/O,异步I/O),Memory-MappedI/O(内存映射I/O)等,不...
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8-bit I2C-bus and SMBus IO port with reset
The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applicatio...