Kontron AM5010 BIOS - Manual (Page 116)

POST Codes AM4010/AM4011/AM5010 BIOS
Page 106 ID 1022-2060, Rev. 2.0
DIM Code Checkpoints
The Device Initialization Manager module gets control at various times during BIOS POST to
initialize different BUSes. The following table describes the main checkpoints where the DIM
module is accessed:
CHECKPOINT DESCRIPTION
2A Initialize different buses and perform the following functions: Reset, Detect, and Disable
(function 0); Static Device Initialization (function 1); Boot Output Device Initialization (func-
tion 2). Function 0 disables all device nodes, PCI devices, and PnP ISA cards. It also
assigns PCI bus numbers. Function 1 initializes all static devices that include manual config-
ured onboard peripherals, memory and I/O decode windows in PCI-PCI bridges, and non-
compliant PCI devices. Static resources are also reserved. Function 2 searches for and
initializes any PnP, PCI, or AGP video devices.
38 Initialize different buses and perform the following functions: Boot Input Device Initialization
(function 3); IPL Device Initialization (function 4); General Device Initialization (function 5).
Function 3 searches for and configures PCI input devices and detects if system has standard
keyboard controller. Function 4 searches for and configures all PnP and PCI boot devices.
Function 5 configures all onboard peripherals that are set to an automatic configuration and
configures all remaining PnP and PCI devices.