Wincor Nixdorf BEETLE F2-ULV-CPU, User Manual

Page: 59 / 63

F2 ULV-CPU
53
POST
Code
(Hex)
Name Description
87h POST_CONFIG_MCD Initialize Mother Board Configurable devices.
88h BIOS_INIT Initialize timeouts, key buffer, soft reset flag.
89h ENABLE_NMI Enable NMI.
8Ah INIT_EXT_BDA Initialize the extended BIOS data area.
8Bh MOUSE IF <mouse support enabled> THEN
Setup interrupt vector for mouse.
Add mouse support to equipment installed flag.
ENDIF
8Ch FLOPPY Test both floppy drives.
IF <error detected> THEN
Display floppy error message.
ENDIF
8Fh FDISK_FAST_PREINIT Count and store the number of ATA drives in the sub-
system.
90h FDISK Initialize the hard disk subsystem and test.
IF <error detected> THEN
Display hard disk error message.
ENDIF
91h FDISK_FAST_INIT Set timing based on drives attached.
92h USERPATCH2 Code that is patched into the ROM can be setup to
execute at this point.
93h MP_INIT Create the CPU feature table.
94h DISABLE_A20 Disable the A20 address line.
95h CD Validate bootable CD ROM.
Prepare CD for CD ROM boot.
96h CLEAR_HUGE_ES Store an 8 in the shutdown code byte in CMOS.
Reset the processor.
97h MP_FIXUP Create pointer to MP table in Extended BDA.
98h ROM_SCAN Scan through the ISA option ROM space and jump to
each option ROM found. Shadow PCI option ROMs
and initialize cards.
9Ah MISC_SHADOW Shadow expansion ROM areas that are enabled from
setup.
9Ch PM_SETUP Setup power management if enabled.
9Dh SECURITY Initialize Security Engine.
9Eh IRQS Enable IRQ 0, 1, 2, and 6.
9Fh FDISK_FAST_INIT2 Check and store the total number of Fast Disks (ATA
and SCSI).
A0h TIME_OF_DAY Verify that the system clock interrupts are occuring.
A2h KEYBOARD_TEST Set NumLock indicator.
IF <keylock set> THEN
Print error message on screen.
ENDIF