Description

MOST PCI Interface 25o NIC provides a high-speed connection between a PC or laptop and a MOST network. It allows access to all network data. A programmable number of streaming source data channels can be transferred to and from the MOST network.

The chip set used for MOST PCI Interface 25o NIC consists of the OS8104 MOST Network Interface Controller and a PC interface chip. Whereas the OS8104 is used as an interface to the MOST network, the PC interface chip implements the connection to the PCI bus. This chip set, together with the corresponding device drivers, forms a complete multimedia interface solution for streaming audio and video as well as transferring packet data and control messages. Both 44.1 and 48 kHz system frame rates are selectable in timing master mode.

The interfaces operate in bus master mode for the highest possible data transfer with minimized system overhead on the main CPU.

MOST Device Development

MOST PCI Interface 25o NIC enables software simulation for future MOST devices without the need for hardware. Network devices in the development phase may be controlled with this PC Interface, and may also be used as a “sparring partner” for the simulation being tested.

NIC-based MOST PC Interfaces permit access to the MOST Control Message Service by providing all necessary software to develop a MOST NetServices client directly on the PC Interface. The API is similar to the embedded version of MOST NetServices Layer I, with additional functions needed to activate the PC Interface. The control drivers support the stand-alone MOST NetServices DLL, which is included.

MOST PCI Interface 25o NIC provides the ability to stream real-time (synchronous) data to and from a MOST network. It also enables the sending and receiving of packet data. The NDIS driver supports standard TCP/IPbased networking via a PC Interface. Using MOST High Protocol Service enables development of a PC-based MOST device or device simulation. The ability to do this is provided by the MOST Packet DLL.

Overview of MOST Data Transport Layers

The graphic below illustrates the function blocks of a PCbased MOST device, and the functions provided by the MOST PCI Interface 25o NIC.