Siemens SIMATIC IPC847D Operating Instructions Manual page 185

Meaning
Display
(hex)
76H PEI_SB_REG_INIT
77H PEI_PCIE_TRAINING
79H PEI_SMBUS_INIT
41H DXE_SB_SPI_INIT
42H DXE_CF9_RESET
43H DXE_SB_SERIAL_GPIO_INIT
44H DXE_SMMACCESS
45H DXE_NB_INIT
46H DXE_SIO_INIT
47H DXE_LEGACY_REGION
48H DXE_SB_INIT
49H DXE_IDENTIFY_FLASH_DEVICE
4AH DXE_FTW_INIT
4BH DXE_VARIABLE_INIT
4CH DXE_VARIABLE_INIT_FAIL
26H BDS_CONNECT_LEGACY_ROM
27H BDS_ENUMERATE_ALL_BOOT_OP
TION
28H BDS_END_OF_BOOT_SELECTION
29H BDS_ENTER_SETUP
2AH BDS_ENTER_BOOT_MANAGER
2BH BDS_BOOT_DEVICE_SELECT
2CH BDS_EFI64_SHADOW_ALL_LEGAC
Y_ROM
2DH BDS_ACPI_S3SAVE
2EH BDS_READY_TO_BOOT_EVENT
2FH BDS_GO_LEGACY_BOOT
30H BDS_GO_UEFI_BOOT
SIMATIC IPC847D
Operating Instructions, 01/2014, A5E32997454-AA
Description
South Bridge Early Initial
PCIE Training
SMBUS Early Initial
South bridge SPI initial
Setup Reset service,
DXE_CF9Reset
South bridge Serial GPIO
initial,
DXE_SB_SerialGPIO_INIT
Setup SMM ACCESS
service
North bridge Middle initial
Super I/O DXE initial
Setup Legacy Region
service,
DXE_LegacyRegion
South Bridge Middle Initial
Identify Flash device
Fault Tolerant Write
verification
Variable Service Initial
Fail to initial Variable
Service
Dispatch option ROMs
Get boot device information
End of boot selection
Enter Setup Menu
Enter Boot manager
Try to boot system to OS
Shadow Misc Option ROM
Save S3 resume required
data in RAM
Last Chipset initial before
boot to OS
Start to boot Legacy OS
Start to boot UEFI OS
Technical specifications
8.6 BIOS description
Initialization of the South
bridge
Training phase of the PCIE
device
Initialization of the SM Bus
Initialization of the Serial
Peripheral Interface in the
South Bridge
Setup Reset service
Initializations of the serial
GPIO
Setup SMM access service
Initialization of the North
Bridge
Initialization of the Super IO
Setup service Legacy
region
Initialization of the South
Bridge
Identify FLASH type
Checking of the write fault
tolerance
Initialization of the variable
service
Failure to initialize the
variable service
Callup of the Legacy Option
ROMs
Determine the Boot Device
information
Boot selection terminated
Callup into SETUP
Callup Boot Manager
Booting of the OS
Copying the Legacy Option
ROMs into RAM
Make available for operating
state S3 RAM
Initialization of the last
chipset before the OS Boot
Boot Legacy OS
Boot UEFI OS
Remedy
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