High-performance 32-bit processor for real-time control

R807 utilizes an 8-stage pipeline and dual-issue out-of-order architecture. In addition to the cache, it implements tightly-coupled memory (TCM), a low-latency peripheral quick access interface, rapid interrupt response and memory ECC check. It is suitable for application fields requiring high real-time performance and reliability, such as SSD's and industrial control.

• Instruction set: T-head ISA (32-bit/16-bit variable-length instruction set);
• Pipeline: 8-stage;
• Microarchitecture: Dual-issue (superscalar), out-of-order;
• General register: 32 32-bit GPRs;
• Cache: I-Cache: 8 KB/16 KB/32 KB/64 KB (size options); D-Cache: 8 KB/16 KB/32 KB/64 KB (size options);
• Tightly-coupled memory: I-TCM: 4 KB to 1 MB (size options); D-TCM: 4 KB to 1 MB (size options);
• Tightly-coupled memory slave interface: Supports an independent TCM slave interface;
• Bus interface: Dual bus (system bus and peripheral bus);
• Peripheral quick access interface: Dedicated quick peripheral access interface;
• Memory protection: 0 to 16 optional protection zones;
• ECC check: Both Cache and TCM support ECC check;
• Floating point engine: Supports single and double precision floating point operations;
• Low-latency tightly-coupled memory: Provides deterministic access to instructions and data to improve real-time performance of the system;
• D-TCM Parallel access blocking: Supports parallel execution of CPU data processing and DMA data handling;
• Peripheral quick access interface: Optimizes peripheral access latency and supporting concurrent bus transmission for peripheral access;
• Rapid interrupt response: Interrupts the execution of long-delay instructions and immediately responds to interruptions, improving the real-time performance of interrupt response;
• Reliability design: Supports ECC validation and error correction of Cache/ECC.

• Industrial Control