ARM 7 processors are usually used in portable devices - including GameBoy Advance. In the NDS this ARM7 32-bit cpu is responsible for emulating / playing GBA cartridges.
If used for Nintendo DS original game cards its clock speed is used at full 33MHz when as for GAME BOY emulation the clock speed of the ARM7 co-procesor will be reduced to 16.78 Mhz to match that of a GB Advance.
Besides NimtendoDS ARM 7 processors are used in Personal audio MP3, WMA, AAC players. Entry level wireless handset. Pagers. Ink-jet/bubble-jet printer and Digital still cameras.
NDS Media Cards /DS Game Cards capable of holding up to 1 gigabit of information. Make note that it is bits and not Bytes that Nintendo is talking about. In PC terms this means that carts will be UP to 128 MB in size. (1MByte = 8Mbits)
Misc DS Specs.
Size: 148.7 millimeters (5.85 inches) wide, 84.7 millimeters (3.33 inches) long, 28.9 millimeters (1.13 inches) tall Nintendo DS Dev Kit
Wireless Communication: WiFi - IEEE 802.11 + Nintendo's own format; for some games multiple users can play multiplayer games using just one DS Game Card.
Outside NDS ARM9s are used for Embedded applications running an RTOS, 2.5G and 3G baseband processor, Networking systems and Automotive control Powertrain with optional VFP9-S floating point coprocessor. Speech codecs, Imaging products / Printers, digital cameras.
The ARM946E-S™ is a synthesizable macrocell well suited to a wide range of embedded applications. It combines an ARM9E-S CPU with flexible instruction and data caches, instruction and data tightly coupled memory (TCM) interfaces, a protection unit, and an AMBA bus compliant AHB interface. The size of the instruction and data cache, and instruction and data TCM memories are configurable to allow tailoring of the hardware to the embedded application. ARM's real-time trace technology. The core implements the ARMv5TE instruction set and features an enhanced 16 x 32-bit multiplier capable of single cycle MAC operations, and 16-bit fixed point DSP instructions to accelerate signal processing algorithms and applications. The ARM946E-S provides a complete high-performance processor solution, reducing system complexity, die size, power consumption and time-to-market.
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