The DDR HyperTransport is an advanced chip-to-chip communications technology that provides a high-speed, high-performance, point-to-point link for integrated circuits. HyperTransport provides a universal connection that reduces the number of buses within a system.
In the configuration without a PCI-X bridge, the HyperTransport bus between the U3H the K2 IC is 8 bits wide in both directions and supports a total of 1.6 GBps bidirectional throughput.
In the configurations with a PCI-X bridge, the HyperTransport bus between the U3H IC and the PCI-X bridge is 16 bits wide in both directions and supports a total of 4.8 GBps bidirectional throughput. Between the PCI-X bridge and the K2 IC, the bus width is 8 bits, supporting total of 1.6 GBps bidirectional throughput.
For more information on the HyperTransport technology, go to the World Wide Web at
Last updated: 2005-04-29