说明：  SDRAM 参考设计:主要包括The following figure shows a high-level block diagram for this reference design followed by a brief description of each sub-section. The design consists of: · PowerPC processor · PLB-OPB bridge · BlockRAM Memory Controller · SDRAM Controller · Two GPIO ports · A UART Port · External SDRAM
(SDRAM reference design: mainly include The following figure shows a high-level block diagram for this reference design followed by a briefdescription of each sub-section. The design consists of: PowerPC processor PLB-OPB bridge BlockRAM Memory Controller SDRAM Controller Two GPIO ports A UART Port External SDRAM)