Error Diagnosis
6-9
SIMATIC Rack PC 840 Manual
A5E00104826-03
Display
(hex)
DescriptionMeaning
49 TP_PCI_INIT Initialize the PCI port
48 TP_CONFIG Check the configuration
4A TP_VIDEO Initialize the video port
4C TP_VID_SHADOW Copy the video BIOS to RAM
24 TP_SET_HUGE_ES Switch the ES to special mode
22 TP_8742_TEST Test block 8742
52 TP_KB_TEST Keyboard available?
54 TP_KEY_CLICK Switch the keyboard click on/off
76 TP_KEYBOARD Check the keyboard
58 TP_HOT_INT Test for unexpected interrupts
4B TP_QUIETBOOT_START Switch off any boot messages
4E TP_CR_DISPLAY Display the copyright notice
50 TP_CPU_DISPLAY Display the CPU type
5A TP_DISPLAY_F2 Display the F2 message for “SETUP”
5B TP_CPU_CACHE_OFF Switch off the cache if applicable
(SETUP setting)
5C TP_MEMORY_TEST Test the system memory
60 TP_EXT_MEMORY Test the extended memory
62 TP_EXT_ADDR Test the A20 address line
64 TP_USERPATCH1 Area for own initializations
66 TP_CACHE_ADVNCD Determine and enable the cache size
68 TP_CACHE_CONFIG Configure and test the cache
6A TP_DISP_CACHE Display the cache configuration
6C TP_DISP_SHADOWS Configuration and size of the shadow
Display RAM
6E TP_DISP_NONDISP Display nondisposable segment
70 TP_ERROR_MSGS Display post error
72 TP_TEST_CONFIG Check SETUP irregularities
7C TP_HW_INTS Set the IRQ vectors
7E TP_COPROC Check whether the CO processor is
present
96 TP_CLEAR_HUGE_ES Switch the ES back
80 TP_IO_BEFORE Disable IO circuits
88 TP_BIOS_INIT Initialize the BIOS data area
8A TP_INIT_EXT_BDA Initialize the external BIOS data area
85 TP_PCI_PCC Determine the PCI blocks
82 TP_RS232 Determine the serial ports
84 TP_LPT Determine the parallel port
86 TP_IO_AFTER Reenable the IO blocks
83 TP_FDISK_CFG_IDE_CTRLR Configure the IDE controller
89 TP_ENABLE_NMI Enable the NMI
8C TP_FLOPPY Initialize the floppy controller
90 TP_FDISK Initialize the hard disk controller
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