Freescale Semiconductor Data Sheet: Technical Data MCF5441x ColdFire Microprocessor Data Sheet Version 4 ColdFire Core with EMAC and MMU Up to 385 Dhrystone 2.1 MIPS @ 250 MHz 8 KB instruction cache and 8 KB data cache 64 KB internal SRAM dual-ported to processor local bus and other crossbar switch masters System boot from NOR, NAND, SPI flash, EEPROM, or FRAM Crossbar switch technology (XBS) for concurrent access to peripherals or RAM .