RadiSys PROCELERANT CE915GMA Product Manual page 52

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Checkpoint Code Description
48h Verifies the hardware configuration and notes whether the system has color or monochrome
video.
49h Initializes the Plug and Play, and PCI.
4Ah Initializes the video device.
4Bh Initializes QuietBoot (splash screen).
4Ch Shadows video BIOS ROM.
4Eh Displays the copyright message.
4Fh Allocates storage for Multiboot tables.
50h Displays the CPU type and speed.
52h Initializes and Configures the Keyboard & PS/2 Mouse.
55h Configures USB devices.
58h Tests hot interrupts
59h Initializes the POST display service.
5Ah Displays "Press F2 for Setup"prompt.
5Bh Disables L1 cache.
5Ch Determines size of conventional memory.
60h Performs memory tests on extended RAM.
62h Preforms address tests on extended RAM.
66h Configures MTRR for extended memory caching.
67h Initializes the non-primary processors.
68h Enables cache(s).
69h Initializes SMM, SMRAM and SMI code.
6Ah Displays cache size.
6Ch Displays BIOS shadow status.
6Eh Zeroes un-initialized extended memory with cache on.
70h Displays any errors found.
72h Checks bad configuration.
76h Reports if there was a Keyboard or Controller failures.
7Ch Initializes hardware interrupt vectors.
7Eh Coprocessor initialization.
81h POST device initialization.
82h Initializes RS232 devices.
83h Configures non-MCD IDE controllers.
84h Initializes parallel port(s).
85h Configures PC Compatible Plug and Play ISA devices.
87h Initializes MCDs (motherboard configurable devices).
88h Initializes time-outs, key buffer, soft reset flag, and shadow RAM.
89h Enables NMIs.
8Ah Initializes extended BIOS data area.
8Bh Sets up PS/2 mouse interrupt & initialize extended BDA.
8Ch Initializes legacy floppy disk drive(s).
90h Tests hard disks.
91h Programs timing registers according to PIO modes.
System Resources