Mram as critical event storage for powered down gaming machines

G - Physics – 07 – F

Patent

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Details

G07F 17/32 (2006.01)

Patent

CA 2600342

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 comprenant MRAM et MROM. MROM permettant de stocker des programmes d'amorce et d'autres codes lecture seule sont formées par coupure des connexions d'écriture ou par non-fourniture de broches de support PCB aux broches d'écriture de MRAM ou par utilisation de concentrateurs de mémoire, aux fins de prévention de l'écriture dans des MRAM. Une carte de témoins ou un autre dispositif de consignation, contrôlant les activités au niveau de divers composants en cas de panne de l'alimentation principale de la machine, effectue des enregistrements dans MRAM qui peut être à double port pour le dispositif de consigne et MGC. Divers composants peuvent présenter chacun des dispositifs de consigne et des MRAM réservées. Une MRAM associée à un coffret-cerveau remplace la DRAM et la NVRAM des architectures normales de machine et est utilisée 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. Une autre MRAM associée au module d'arrière plan mémorise des données associées au boîtier extérieur ou au terminal.

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