Introduction
   TC1130 micro controller offers an interface called External Bus Unit (EBU) to access various external memory devices. Programmable access parameters from asynchronous memory devices to Burst Flash and SDRAM devices makes this interface very flexible in interacting with memory devices. The EBU controls the transactions between external memories or peripheral units, and the internal memories and peripheral units. To connect another external memory device to EBU when a SDRAM device is already connected an intermediate buffer is required to synchronize the clock between Tricore EBU and device.