VOGONS


First post, by Vendein_RaZoR

User metadata
Rank Newbie
Rank
Newbie

Does anyone knows what kind of peripheral modules can be used on LPC bus ?
I saw Intel's LPC specification and there is no video adapters in list, only FDC, FWH, COM, LPT and others
But maybe I'm not right and can be any chances to work (ISA) videocard on LPC bus?

Reply 1 of 2, by nfraser01

User metadata
Rank Member
Rank
Member
Vendein_RaZoR wrote on 2025-08-06, 15:06:

Does anyone knows what kind of peripheral modules can be used on LPC bus ?
I saw Intel's LPC specification and there is no video adapters in list, only FDC, FWH, COM, LPT and others
But maybe I'm not right and can be any chances to work (ISA) videocard on LPC bus?

Accoring to WikiPedia (which is always coprrect ...)

Device discovery is not supported; since only motherboard devices or specific models of TPM are connected, the host firmware (BIOS, UEFI) image will include a static description of any devices and their I/O addresses expected to be present on a particular motherboard

So unlikely. But I'm not really that much into understanding busses to say "no".

Reply 2 of 2, by wierd_w

User metadata
Rank Oldbie
Rank
Oldbie

I mean, if you have some other way to shoe on an isa option rom to supply the vga bios, then the discovery would just be the bios post process doing the adapter rom region scan, it finding the vga opt rom, then executing it.

The option rom startup code would then set up and turn on the card.

This option rom needs to be directly in the mapped 1mb memory area though.

Maybe shoehorned onto the packed system rom?