The 89H12NT12G2 is a member of the IDT family of PCI Express switching solutions. The 89H12NT12G2 is a 12-lane, 12-port system interconnect switch optimized for PCI Express Gen2 packet switching in high-performance applications, supporting multiple simultaneous peer-to-peer traffic flows. Target applications include multi-host or intelligent I/O based systems where inter-domain communication is required, such as servers, storage, communications, and embedded systems. With Non-Transparent Bridging functionality and innovative Switch Partitioning feature, the 89H12NT12G2 allows true multi-host or multiprocessor communications in a single device. Integrated DMA controllers enable high-performance system design by off-loading data transfer operations across memories from the processors. Each lane is capable of 5 GT/s link speed in both directions and is fully compliant with PCI Express Base Specification 2.1. A non-transparent bridge (NTB) is required when two PCI Express domains need to communicate to each other. The main function of the NTB block is to initialize and translate addresses and device IDs to allow data exchange across PCI Express domains.
High Performance Non-Blocking Switch Architecture
12-lane, 12-port PCIe switch with flexible port configuration