差别
这里会显示出您选择的修订版和当前版本之间的差别。
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fpga管脚 [2017/09/11 02:00] gongyu 创建 |
fpga管脚 [2017/09/11 02:01] (当前版本) gongyu |
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| The user pins are called "IOs", or "I/Os", or "user I/Os", or "user IOs", or "IO pins", or ... you get the idea. | The user pins are called "IOs", or "I/Os", or "user I/Os", or "user IOs", or "IO pins", or ... you get the idea. | ||
| IO stands for "input-output". | IO stands for "input-output". | ||
| - | + | * You usually have total control over user IOs. They can be programmed to be inputs, outputs, or bi-directional (i.e. with tri-statable buffers). | |
| - | You usually have total control over user IOs. They can be programmed to be inputs, outputs, or bi-directional (i.e. with tri-statable buffers). | + | * Each IO pin is connected to an "IO cell" inside the FPGA. The "IO cells" are powered by the VCCIO pins (IO power pins) - more details below. |
| - | Each IO pin is connected to an "IO cell" inside the FPGA. The "IO cells" are powered by the VCCIO pins (IO power pins) - more details below. | + | |
| 固定管脚 | 固定管脚 | ||