BIOS知识介绍解析.ppt

BIOS知识介绍 汪波 (1) (2) (3) (4) (5) (6) (7) (8) (9) * BIOS相关知识介绍 BIOS简介 BIOS启动过程 ACPI电源管理 BIOS简介 BIOS架构 设备侦测 资源管理 中断处理 Inside BIOS架构 设备侦测 CPU Memory BUS ISA,EISA,VESA,PCI,PCMCIA,PCI Express,LPC,AGP,I2C/SMBus Input/Output Device Keyboard,Mouse,FDD,HDD,CD-ROM,Serial/Parrallel Ports,FIR Adapter Video,SCSI,Network Others USB,1394,SATA CPU FSB Frequency Vcore,VID[5:0] Microcode Update APIC(Advance Programmable Interrupt Controller) SpeedStep Memory SDRAM,DDR,DDRII SPD Memory Parameter CAS Latency,Trcd(RAS# to CAS# Delay), tRP(RAS# Precharge),tRAS(Activate to Precharge delay) Memory Initialization JEDEC Specification Memory BUS PCI PCI Express LPC(Low Pin Count) for Super I/O(FDC,IR,KBC,SP,PP),BIOS Firmware Memory,Embedded Controller AGP I2C/SMBus for Clock Generator,SPD,Thermel Sensor Input/Output Device Keyboard,Mouse 8042 Controller FDD HDD,CD-ROM ATA,ATAPI(AT Attachment with Packet Interface), Fat32/NTFS,INT 13h Serial/Parrallel Ports,FIR Input/Output Device Adapter Video VGA BIOS,INT 10h VESA:Video Electronics Standards Association SPWG:Standard Panel Working Group SCSI Network MAC Address,PXE,RPL Others USB UHCI:Universal Host Controller Interface(USB1.1) EHCI:Enhanced Host Controller Interface(USB2.0) HID: Human Interface Devices 1394 GUID SATA AHCI:Advanced Host Controller Interface 资源管理 Memory Shadow,MTRR:Memory Type Range Registers PAT:Page Attribute Table UC(UnCacheable),WC(Write Combining),WT(Write-Through),WP(Write-Protect),WB(WriteBack) IO IRQ PCI Routing DMA(Direct Memory Access) IRQ Routing 中断处理 Interrupt Vector Table: INT NO. System Memory INT 0x0 0x0-3 divide error INT 0x1 0x4-7 single step INT 0x2 0x8-B NMI INT 0x3 0xC-F