About 5 months ago, a very interesting point-and-click adventure game called Superbrothers: Sword & Sworcery EP was released for the Apple iPad. Was it because it has outstanding, immersive gameplay? No, it was released with incredible 8-bit visuals, challenging puzzles and an awesome soundtrack. Indeed, it was quite different than the predominate trend in gaming: more realistic and more immersive interactive graphics.
From Casual Handheld to Professional Simulations
The push for more action and realism is driving higher requirements for performance and capacity in NOR memory within embedded devices from simple handheld gaming devices to high-end professional games and simulations. One can say that “the flashiness of the game is driving the flashiness in the system” – all pun intended!
Three key memory characteristics are critical to graphics processing in these systems: data throughput, initial response times and total storage capacity. Unfortunately, balancing these tradeoffs against one another is a tricky proposition. Without superior data throughput, the gaming experience would be lost as jittery graphics would destroy the illusion; yet, fast initial response times are needed to handle fast random reads due to the interactivity of the gameplay. Traditionally, NOR Flash has handled these requirements quite well. High performance is enabled through burst mode and simultaneous read/write operations for fast boot and quick application loading.
The drive for greater, more comprehensive realism has also increased capacity requirements. When one thinks of higher capacity requirements and flash memory, one immediately thinks of solid-state disks (SSDs). Undoubtedly, SSDs are driving the limit for higher capacity with NAND flash devices and will continue for the foreseeable future. NAND Flash (64Gbit) clearly can scale to larger densities than NOR flash (now 4Gbit), but with the cost of a significant impact on initial access times due to NAND’s parallel configuration of multiplexed address and data buses. However, the push for higher capacity combined with superior performance is creating demand for another growth segment in the market, high-density NOR.
Spansion recently introduced the industry’s first 4Gb NOR Flash at 65nm. Built for speed, the chip has fast random read for interactive operation, fast programming for time efficient software development, and very high reliability for long-term operation. With these types of advancements, dual requirements of performance and capacity are best delivered by high-density NOR; particularly for 2D and 3D graphics, animation and video used in games, learning devices and automotive infotainment and instrumentation clusters.


Now… as consumers, we want it now. Instant gratification has become the rule as opposed to the exception. Consequently, an “instant-on experience” has become critical for the practical use, and eventual customer satisfaction, of electronics.