403GA

PowerPC 403GA*, 403GB* and 403GC* 32-bit RISC Embedded Controllers combine high performance and functional integration with low power consumption. On-chip caches and integrated device control functions reduce system chip count and design complexity, while improving system throughput.

These embedded controllers 403GA*, 403GB* and 403GC* execute programs at sustained speeds approaching one instruction per cycle. Their RISC processor cores are tightly coupled to internal 2KB instruction and 1KB data caches, reducing overhead for data transfers to and from main storage. Instruction queue logic minimizes pipeline stalls by managing branch prediction, branch folding and instruction prefetching.

The PowerPC 403GC includes an integrated MMU featuring a fully associative TLB. Each entry provides translation for a memory page, which can be one of several sizes. TLB replacement is managed by software, which can employ the optimum replacement strategy for a particular application.

403GA*, 403GB* and 403GC* Embedded Controllers implement the PowerPC Architecture* in IBM's 0.5 mm CMOS technology. These embedded controllers provide low-power 3.3V operation, with built-in stand-by mode and dynamic power management.