ARM6: a high performance low power consumption macrocell

A description is given of the ARM6, an ASIC (application-specific integrated circuit) CPU macrocell of 35530 transistors which offers high performance (28 K Dhrystones at 20 MHz) from an extremely small die size (3.1 mm*$1.9 mm on a 0.8- mu m CMOS process) and consumes very low levels of power (54 mW at 20 MHz at 3 V). The device has been designed to allow it to be easily incorporated into larger chip designs to meet the requirements of many of today´s highly integrated products-for example, the ARM610 comprising ARM6, 4-kbyte cache, write buffer and memory management unit, and the ARM250, a single chip computer with integrated video controller, memory management unit, direct ROM and DRAM interface, and IO controller with counter timers and serial interface.<>