Siemens Simatic PC Panel PC 870, Equipment Manual

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Fault Diagnosis
Release 11/02
6-7
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
The POST codes in the order of their occurrence:
Display
(hex)
Meaning Description
02 TP_VERIFY_REAL Test whether the CPU is in real mode
1C TP_RESET_PIC Reset interrupt controller
12 TP_RESTORE_CRO Restore control register
13 TP_PCI_BM_RESET PCI Bus Master Reset
36 TP_CHK_SUTDOWN Check shutdown code
24 TP_SET_HUGE_ES Switch ES to special mode
03 TP_DISABLE_NMI Disable NMI
0 A TP_CPU_INIT Early initialization of the CPU
04 TP_GET_CPU_TYPE Determine CPU type
AE TP_CLEAR_BOOT Process boot flag
06 TP_HW_INIT Initialize basic hardware
18 TP_TIMER_INIT Initialize timer
08 TP_CS_INIT Initialize chipset
C4 TP_PEM_SIZER_INIT Reset system error
0E TP_IO_INIT Initialize IO
0C TP_CACHE_INIT Initialize cache
16 TP_CHECKSUM EPROM checksum test
28 TP_SIZE_RAM Determine the RAM size
3 A TP_CACHE_AUTO Determine the cache size
2A TP_ZERO_BASE Set 512k base RAM to 0
2C TP_ADDR_TEST Test the base RAM address cables
2E TP_BASERAML Basis RAM, check 1st 64k
38 TP_SYS_SHADOW BIOS Shadow
20 TP_REFRESH Refresh block test
29 TP_PMM_INIT Initialize post-memory manager
33 TP_PDM_INIT Initialize dispatch manager
C1 TP_7xx_INIT Initialize PG 7xx I/Os
09 TP_SET_IN_POST Start Power On self-test
0 A TP_CPU_INIT Initialize CPU
0B TP_CPU_CACHE_ON Enable Cache
0F TP_FDISK_INIT Initialize the hard disk
10 TP_PM_INIT Initialize the power management
14 TP_8742_INIT Initialize block 8742
1A TP_DMA_INIT Initialize DMA blocks
1C TP_RESET_PIC Reset interrupt controller
32 TP_COMPUTE_SPEED Determine clock rate
C1 TP_740_INIT Initialize the PG 740 I/Os
34 TP_CMOS_TEST Test CMOS RAM
3C TP_ADV_CS_CONFIG Configure advanced chipset
42 TP_VECTOR_INIT Initialize interrupt vectors