Dim Code Checkpoints - Kontron CP6500-V User Manual

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
2A
38
Chapter 11: POST Codes
Description
Initialize different buses and perform the following functions: Reset, Detect, and
Disable (function 0); Static Device Initialization (function 1); Boot Output Device
Initialization (function 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 configured onboard peripherals, memory and I/O
decode windows in PCI-PCI bridges, and noncompliant PCI devices. Static
resources are also reserved. Function 2 searches for and initializes any PnP, PCI, or
AGP video devices.
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.
57