描述 Description

The CA91C142D (Universe II) is the industry's leading high-performance PCI to VME interconnect. It is fully compliant with the VME64 bus standard, and is tailored to support advanced PCI processors and peripherals. With a zero wait state implementation for write transactions, and the capability to support pre-fetch reads and multi-beat transactions, the Universe II provides high performance utilization of the PCI bus.

The Universe II eases development of VMEbus systems by providing direct connection to a local PCI bus. The device is ideally suited for CPU or peripheral boards functioning as both master and slave in the VMEbus system. Bridging is accomplished through a decoupled architecture with independent FIFOs for inbound (VME to PCI), outbound (PCI to VME), and DMA traffic. With this architecture, throughput is maximized without sacrificing bandwidth on either bus.

Designing with the Universe II eases the development of VME Single Board Computers (SBCs) and I/O peripherals targeting the military, aerospace, industrial automation and medical markets.

特性 Features

? High performance 64-bit?VME?to PCI bus?interconnect
? Industry-proven, reliable PCI to VME bridge
? Fully compliant, 32 or 64-bit, 33 MHz?PCI?bus?interconnect
? Integral FIFOs for write posting to maximize bandwidth?utilization
? Programmable?DMA?controller with Linked-List?mode
? Flexible interrupt?logic
? Automatic initialization for VME slave-only?applications
? Extensive suite of VMEbus address and data transfer modes
? Register set programmable from both the?PCI?and VME64 buses
? Full VMEbus system?controller functionality
? Sustained transfer rates of up to 60-70 Mbytes/s
? Support for RMWs,?ADOH,?PCI?LOCK?cycles, and?semaphores
? Location monitors for broadcasting interrupts and message passing
? Commercial, industrial, and extended temperature?variants
? IEEE?1149.1?JTAG?