Advme7505 is the VMEbus CPU board installed with the PowerPC G4. It has 2MB L2 cache to provide high performance. It uses the GT-64260 as the system controller and enables DMA to the main memory and external bus. For input/output interfaces, it is provided with two 100/10 Base-TX Ethernet ports and 2 serial ports. Furthermore, it has availability with various memories, including SDRAM(128MB - 512MB), CompactFlash, FlashROM, SRAM, and EEPROM. PCI-VME bridge "NARUTO" is used to interface with VMEbus.