| Out in Front |
The PCI9050 from PLX provides a rapid migration path for ISA-based board designs to become PCI boards. The device acts as a 33-MHz PCI slave interface but connects to the board electronics at ISA’s 8 MHz. It automatically handles big- and little-endian byte swapping; includes a bidirectional FIFO buffer between the PCI bus and the board’s local bus; and supports 8-, 16-, or 32-bit multiplexed and nonmultiplexed local buses running asynchronously to the PCI bus. The device also includes five local-bus address spaces and four chip selects. The combination of features should allow device drivers to port to the new design with few, if any, changes. The PCI-9050 chip comes in a 160-pin PQFP and costs $12 (20,000). An evaluation board is available for $99. —by Richard A Quinnell
PLX Technology, Sunnyvale, CA. (408) 328-3502, http://www.plxtech.com.
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