The MPC8260 PowerQUICC IITM is a versatile communications processor that integrates a high-performance RISC microprocessor that implements the PowerPC architecture, a flexible system integration unit, and many communications peripheral controllers that can be used in a variety of applications, particularly in communications and networking systems. The core is an embedded variant of the 603e microprocessor, referred to as the G2 core, with 16 Kbytes of instruction cache, 16 Kbytes of data cache, and a floating-point unit (FPU). The system interface unit (SIU) consists of a flexible memory controller that interfaces to almost any user-defined memory system (and many other peripherals), making this device a complete system on a chip.