Cobham Gaisler AB provides IP cores and supporting development tools for embedded processors based on the SPARC architecture. We specialize in digital hardware design for both commercial and aerospace applications


Aeroflex Gaisler provides both a 10/100 (GRETH) and a 10/100/1000 Ethernet MAC (GRETH_GBIT). In addition to supporting the gigabit ethernet mode the 10/100/1000 version also provides a more advanced AHB interface and software offloading capabilities (e.g. checksum offloading) compared to the 10/100 version. The advantage of the 10/100 MAC is the considerably smaller area and easier timing requirements. The 10/100/1000 MAC is only available under a commercial license while the 10/100 version is also available under GPL. More information about each core can be found on their respective pages.

10/100 GRETH

10/100/1000 GRETH