MAMEWorld Forums - News - Re: DU Update: Final Lap 3

News
Ultimarc
Emu Loader
Programming
MAME Artwork
progetto-SNAPS

MAMEUI
HBMAME
EmuChat
Hardware
The Loony Bin
MAME Artwork X

MAMEWorld >> News

Index

Flat

R. Belmont

Cuckoo for IGAvania

Reged: 09/21/03

Posts: 9716

Loc: ECV-197 The Orville

Send PM

Re: DU Update: Final Lap 3
09/30/10 09:17 PM

> The C68 MCU has a pin to select internal or external ROM that is brought out to a
> jumper on the motherboard. The pin is latched internally during a reset pulse so
> subsequent changes are ignored. Just to be sure I verified with a trojan that the pin
> state really is ignored after a reset.

Couldn't you cut the trace and hardwire it to be pulled up or down, whichever selects "external ROM"?

Entire thread
Subject	Posted by	Posted on
DU Update: Final Lap 3	Smitdogg	09/28/10 08:03 PM
Re: DU Update: Final Lap 3	jonwil	09/29/10 01:48 AM
Re: DU Update: Final Lap 3	Smitdogg	09/29/10 02:00 AM
Re: DU Update: Final Lap 3	Phil Bennett	09/29/10 03:00 AM
Re: DU Update: Final Lap 3	R. Belmont	09/29/10 10:54 PM
Re: DU Update: Final Lap 3	jonwil	09/29/10 03:52 PM
Re: DU Update: Final Lap 3	Phil Bennett	09/29/10 09:47 PM
Re: DU Update: Final Lap 3	Charles MacDonald	09/30/10 12:15 AM
Re: DU Update: Final Lap 3	R. Belmont	09/30/10 09:17 PM
Re: DU Update: Final Lap 3	jonwil	10/01/10 01:15 AM
Re: DU Update: Final Lap 3	Fever	09/28/10 09:38 PM
Re: DU Update: Final Lap 3	Smitdogg	09/28/10 09:45 PM

Extra information	Permissions
Moderator: John IV, Robbbert, Tafoid 0 registered and 205 anonymous users are browsing this forum.	You cannot start new topics You cannot reply to topics HTML is enabled UBBCode is enabled	Thread views: 3549

Browser Test | Delete Cookies

atom-guru

UBB.threads™ 6.3.2