Siemens SIMATIC IPC647D Operating Instructions Manual page 181

Meaning
Display
(hex)
7DH PEI_WATCHDOG_INIT
7EH PEI_MEMORY_INIT
7FH PEI_MEMORY_INIT_FOR_CRISIS
80H PEI_MEMORY_INSTALL
81H PEI_TXTPEI
82H PEI_SWITCH_STACK
83H PEI_MEMORY_CALLBACK
84H PEI_ENTER_RECOVERY_MODE
85H PEI_RECOVERY_MEDIA_FOUND
86H PEI_RECOVERY_MEDIA_NOT_FOUND Recovery image not
87H PEI_RECOVERY_LOAD_FILE_DONE
88H PEI_RECOVERY_START_FLASH
89H PEI_ENTER_DXEIPL
8AH PEI_FINDING_DXE_CORE
8BH PEI_GO_TO_DXE_CORE
40H DXE_TCGDXE
41H DXE_SB_SPI_INIT
42H DXE_CF9_RESET
43H DXE_SB_SERIAL_GPIO_INIT
SIMATIC IPC647D
Operating Instructions, 01/2014, A5E32996306-AA
Description
Watchdog timer initial
Memory Initial for Normal
boot
Memory Initial for Crisis
Recovery
Simple Memory test
TXT function early initial
Start to use Memory
Set cache for physical
memory
Recovery device initial
Found Recovery image
found
Load Recovery Image
complete
Start Flash BIOS with
Recovery image
Loading BIOS image to
RAM
Loading DXE core
Enter DXE core
TPM initial in DXE
South bridge SPI initial
Setup Reset service,
DXE_CF9Reset
South bridge Serial GPIO
initial,
DXE_SB_SerialGPIO_INIT
Technical specifications
8.6 BIOS description
Initialization of the
watchdog timer
Memory initialization
during the PEI phase
Memory initialization for
BIOS recovery
Memory test
Initialization of the Trusted
Execution Technology
Start the memory use
Use cache as a physical
memory
Initialize the device for
BIOS recovery
BIOS Recovery image
found
BIOS Recovery image not
found
Loading of BIOS Recovery
image completed
Starting of flashing of
BIOS Recovery image
Copy BIOS image to the
RAM
Loading DXE (Driver
Execution Environment)
program
Start DXE program
TPM initialization in DXE
phase
Initialization of the Serial
Peripheral Interface in the
South Bridge
Setup Reset service
Initializations of the serial
GPIO
Remedy
Service case
Replace the
memory
modules
Replace the
memory
modules
Replace the
memory
modules
Service case
Service case
Service case
Service case
Service case
Check whether
the BIOS
Recovery
image exists
on the
recovery
medium (e.g.
USB stick).
Service case
Service case
Service case
Service case
Service case
Service case
Service case
Service case
Service case
181