"If more than f**ices total (including the SDRAM and LPC18/43xx) are connected to the EMC bus, it is recommended you connect only the SDRAM and bi-directional bus buffers to the LPC18xx/43xx EMC directly, then connect the other devices to the buffered side of the EMC bus, see Fig 13."
EMC SDRAM 应用笔记中推荐,如果总线上device数量超过4个,要加总线缓冲器?
各位高手可以帮解答吗? |