Introduction of IT5 Series Features1-5lSystem block diagramFig. 1-2 System block diagramPentiumProcessor3.3VHost BUSControlAddressDataSecondLevel CacheAddrCtrlTag CtrlDataCtrlTIO[0..7]PCI BUSTXD CtrlPlinkControlAddress/DataFastIDEISA BUSUniversal Serial BusTDXMainMemory(DRAM)CACHE(SRAM)TAGTVXPIIX3CD ROM &Hard DiskUSB1USB2PCI Device(s)ALiM5123ISA Device(s)SerialLPTFDC