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152 Chapter 4
Port 80 Code Driver Name Port 80 Code Driver Name
C0 SmmAccess 7F Font (French)
46 PciHostBridge 8D Font (Chinese)
47 PciExpress B1 UnicodeCollation
CD GmchMbi 5A ConPlatform
48 IchInit 5D ConSplitter
49 IdeController 79 GraphicsConsole
4A SataController 7A Terminal
4B IchSmbusLight 5E VgaClass
C1 SmmControl 5B SaveMemoryConfig
C8 Ich7MSmmDispatcher 5C AcpiSupport
4C IsaAcpiDriver 53 AcpiPlatform
52 Fwh 5F DataHub
CE SmmFwh 7B DataHubStdErr
54 PciHotPlug 61 GenericMemoryTest
51 BootOptionPolicy 60 DiskIo
76 SetupUtility 7C Fat
55 Platform 7D Partition
56 PlatformIde 6B PciPlatform
D9 Ppm 45 AlertStandardForma
CC Platform A8 PciSerial
D0 Ihisi A7 AsfInit
f9 SetupMouse A9 IdeRController
D1 Int15Microcode 63 Legacy8259
D2 SmmPnp 64 LegacyRegion
57 Smbios 65 LegacyInterrupt
58 MemorySubClass 66 BiosKeyboard
59 MiscSubclassDriver 67 BiosVideo
AB SysPassword 68 MonitorKey
AC PswdConsole 69 LegacyBios
D7 HddPswdServiceBody 6A LegacyBiosPlatform
A6 HddPswdService 77 LegacyMouse
80 HiiDatabase 78 SmmUsbLegacy
82 OemSetupBrowser AA AmtbxInvoke
7E Font(English) 83 OemBadgingSupport
Code Beeps POST Routine Description
02h Verify Real Mode
03h Disable Non-Maskable Interrupt (NMI)
04h Get CPU type
06h Initialize system hardware
08h Initialize chipset with initial POST values
09h Set IN POST flag