S5935QF

The S5935QF is one member of the S5935 series.The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities.The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system's processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry's need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video.

Features of the S5935QF are:(1)PCI 2.1 compliant master/slave device;(2)supports new WinNT service pack 2 & 3;(3)four definable pass-thru data channels;(4)synchronous add-on bus operation;(5)optional non-volatile memory boot loading.Applied Micro Circuits Corporation (AMCC), the premier supplier of single chip solutions, has developed the S5935QF to solve the problem of interfacing applications to the PCI Local bus while offering support for newer PCI chipsets and operating systems. The S5935 is a powerful and flexible PCI controller supporting several levels of interface sophistication. At the lowest level, it can serve simply as a PCI bus Target with modest transfer requirements. For high-performance applications, the S5935QF can become a Bus Master to attain the PCI Local bus peak transfer capability of 132 MBytes/sec. The S5935 PCI controller also maintains drop-in compatibility for upgrading many existent S5935QF designs requiring migration into new motherboard architectures, PCI BIOSs and software operating systems.

The S5935QF is an off-the-shelf, low-cost, standard product, which is PCI 2.1 compliant. And, since AMCC is a member of the PCI Special Interest Group, the S5935QF has been tested on various manufacturer's PCI motherboards, chip sets, PCI BIOSs and operating systems. This removes the burden of compliance and compatibility testing from the designer and thus significantly reduces development time. Utilizing the S5935QF allows the designer to focus on the actual application,not debugging the PCI interface.The S5935QF allows special direct data accessing between the PCI bus and the user application through implementation of four definable Pass-Thru data channels. Each data channel is implemented by defining a Host memory segment size and 8/16/32-bit user bus width. The addition of two 32 byte FIFOs, also used in S5935QF Bus Mastering applications, provides further versatility to data transfer capabilities.