The AT91RM9200 features a 200 MIPS ARM920T processor with 16K-byte instruction and 16K-byte data cache memories, 16K bytes of SRAM, 128K bytes of ROM, External Bus Interface featuring SDRAM, Burst Flash and Static Memory Controllers, USB Device and Host Interfaces, Ethernet 10/100 Base T MAC, Power Management Controller, Real Time Clock, System Timer, Synchronous Serial Controller, 6-channel Timer-Counter, 4-channel USART, Two-Wire Interface, Serial Peripheral Interface, Multimedia Card Interface and Parallel I/O Controller.