有的制造商通过在他们的产品系列中提供(或者打算提供)附加的用户可编程的内存。
Some manufacturers provide additional ROM options by including in their range devices with (or intended for use with) user programmable memory.
本文论述了现场通信协议用户可编程的原理，以及面向图形的可编程界面软件的开发。
The principle of users programming for field communication protocol and the development of the software for graphics-oriented programming interface are described.
其开关频率从800khz至4 M Hz是用户可编程的，从而允许使用纤巧、低成本电容器和电感器。
Its switching frequency is user programmable from 800khz to 4mhz, enabling the use of tiny, low cost capacitors and inductors.
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