Magnetoresistive memory units as read only memory devices in...

Details Magnetoresistive memory units as read only memory devices in... Magnetoresistive memory units as read only memory devices in...

G - Physics

07

F

G07F 17/32 (2006.01)

Patent

CA 2600501

Gaming machines and systems having MRAM and MROM are disclosed. MROMs for storing boot programs and other Read Only code are formed by cutting write connections or not providing PCB socket leads to MRAM write pins, or by using memory hubs to prevent writing to MRAMs. A tale-tale board or other logging device monitoring activities at various components while primary machine power is down records to MRAM, which can be dual ported to the logging device and MGC. Various components can each have dedicated logging devices and MRAMs. One MRAM associated with the brain box replaces both DRAM and NVRAM of regular machine architectures, and is used for dual purposes of regular operational use and as safe storage to facilitate a state recovery. Prioritization of data during the storage process is rendered unnecessary. Another MRAM associated with the back plane board stores data associated with the exterior housing or terminal.

L'invention concerne des machines et des systèmes de jeux à MRAM et MROM. Des MROM de mémorisation de programmes de démarrage et autres codes non inscriptibles sont formés par coupe de connexions d'écriture ou sans fournir de lignes de raccordement PCB aux broches d'écriture MRAM, ou au moyen de concentrateurs de mémoire pour empêcher l'écriture aux MRAM. Un module tale-tale ou un autre dispositif d'entrée contrôlant des activités de divers composants en cas de panne de l'alimentation primaire de la machine, enregistre à MRAM qui peut être à double port au dispositif d'entrée et à MGC. Divers composants peuvent présenter chacun des dispositifs d'entrée et des MRAM réservés. Un MRAM associé à un cerveau remplace le DRAM et le NVRAM des architectures normales de machine, et est utilisé comme double fonction, en fonctionnement normal et comme mémoire de sécurité pour faciliter une récupération d'état. La priorisation de données durant le processus de mémorisation devient superflue. Un autre MRAM associé au module d'arrière plan mémorise des données associées au boîtier extérieur ou au terminal.

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