该EL5221是一个双通道，低功耗，高电压，轨对轨输入输出缓冲器。

The EL5221 is a dual, low power, high voltage rail-to-rail input-output buffer.

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低级输入输出对数据不进行缓冲或格式化。

Low-level input and output calls do directli function stream not buffer or format data.

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改命令启动GDB并将其作为Emacs的子进程，其输入输出都在一个新创建的Emacs缓冲中。

This command starts GDB as a subprocess of Emacs, with input and output through a newly created Emacs buffer.

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