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Check out what lawrence at gamesx.com found

Scared0o0Rabbit - Jan 12, 2004

		Scared0o0Rabbit		Jan 12, 2004
			http://nfg.2y.net/grafx/saturnAC.htm... Those are some pics of it http://nfg.2y.net/forum/index.php?showtopic=285... there is the thread he posted it in.

		Pearl Jammzz		Jan 12, 2004
			plz explain what this means for us retards..... *edit* post 1394! can anyone say I tripple E 1394? I am so fast....I am like firewire! hehe.

		antime		Jan 12, 2004
			The address checker monitors what addresses the program accesses. When the program tries to access some illegal address (preprogrammed into the hardware) the machine is halted and the LEDs are used to display info to the programmer. You can see pics (and bid on) the Megadrive version here.... The devices were used as part of Sega's QA process. On the Megadrive, the address checker replaces the CPU, but from these pics it's kind of difficult to see what the Saturn version is wired up to. My guess would be the CPU bus directly, where acesses from both the master and slave can be mointored by one device. EDIT: Based on Lawrence's description, the Saturn version might not halt the machine like the Megadrive version does.

		AntiPasta		Jan 13, 2004
			I wonder how it works then, as normally bus accesses are way too fast to be noticed by the human eye

		antime		Jan 13, 2004
			Presumably the LEDs would stay lit until the LED reset switch is pressed.