Subject: Re: [stella] RIOT Timer questions From: Chris Wilkson <ecwilkso@xxxxxxx> Date: Mon, 8 Sep 2003 23:53:26 -0400 (EDT) |
On Mon, 8 Sep 2003, Adam Wozniak wrote: > On Mon, 8 Sep 2003, Eric Ball wrote: > > If I > > were designing the part, I would have it stop at 00 to indicate at least 255 > > cycles have elapsed since the transition to single cycle operation. > > Hehehe. I'd design it the other way. Rolling over again would cost less > silicon, especially back in the mid 70's. =) Not much. The comparator is already there. You just need to latch the zero if the overflow flag is already set. A nand gate that inhibits the clock might be enough...3 transistors? -Chris ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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