ARM7100-a high-integration, low-power microcontroller for PDA applications

The ARM7100 is the first of a new generation of highly integrated ARM-based microcontrollers, using modular design techniques based on the Advanced Microcontroller Bus Architecture (AMBA) to simplify design and test while optimizing for lowest power (70 mW) and low die size. The ARM7100, which is targeted at PDA applications, delivers 18.4 MIPS (peak) at 3.3 V and contains an embedded ARM7l0a core (including 8 kByte cache and MMU) with ARM-library peripherals such as an LCD controller, UART and CODEC interface. This paper gives an overview of the ARM7100 microcontroller and describes the architecture used to optimize for low power while maintaining high performance.