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Siemens C79000 Z7076 C638 04 User Manual

Page 58

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Error Diagnosis and Reinstallation

6-8

SIMATIC Box PC 620 Operating Manual

C79000-Z7076-C638-04

The POST codes in order of occurrence:

Display

(hex)

Meaning

Description

02

TP_VERIFY_REAL

Test whether the CPU is in real mode

1C

TP_RESET_PIC

Reset the interrupt controller

12

TP_RESTORE_CRO

Restore the controller register

13

TP_PCI_BM_RESET

Reset the PCI bus master

36

TP_CHK_SUTDOWN

Check the shutdown code

24

TP_SET_HUGE_ES

Switch the ES to special mode

03

TP_DISABLE_NMI

Switch off the NMI

0A

TP_CPU_INIT

Initialize the CPU

04

TP_GET_CPU_TYPE

Determine the CPU type

AE

TP_CLEAR_BOOT

Edit the boot flag

06

TP_HW_INIT

Initialize the main hardware

18

TP_TIMER_INIT

Initialize the timer

08

TP_CS_INIT

Initialize the chip set

C4

TP_PEM_SIZER_INIT

Reset system error

0E

TP_IO_INIT

Initialize IO

0C

TP_CACHE_INIT

Initialize the cache

16

TP_CHECKSUM

EPROM checksum test

28

TP_SIZE_RAM

Determine the RAM size

3A

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

Check the 1.64k base RAM

38

TP_SYS_SHADOW

BIOS-shadow

20

TP_REFRESH

Refresh circuit test

29

TP_PMM_INIT

Initialize the post memory manager

33

TP_PDM_INIT

Initialize the dispatch manager

C1

TP_7xx_INIT

Initialize the PG 7xx I/Os

09

TP_SET_IN_POST

Start power ON self-test

0A

TP_CPU_INIT

Initialize the CPU

0B

TP_CPU_CACHE_ON

Switch on the cache

0F

TP_FDISK_INIT

Initialize the hard disk

10

TP_PM_INIT

Initialize the power management

14

TP_8742_INIT

Initialize the 8742 circuit

1A

TP_DMA_INIT

Initialize the DMA circuits

1C

TP_RESET_PIC

Reset the interrupt controller

32

TP_COMPUTE_SPEED

Determine the clock pulse speed