The PEX8114-BB13BIG is a PCI Express (PCIe) to PCI/PCI-X bridge chip manufactured by PLX Technology (now Broadcom). This bridge enables seamless communication between PCIe-based systems and legacy PCI or PCI-X devices. It's designed to facilitate the integration of older PCI hardware into newer PCIe-based platforms.

Applications:

• Adapting legacy PCI cards to modern PCIe systems
• Industrial PCs and embedded systems
• Data acquisition systems
• Medical imaging equipment
• Test and measurement instruments

Features:

• PCIe to PCI/PCI-X bridge
• Supports PCI Express Gen 1
• Supports PCI/PCI-X clock speeds up to 133 MHz
• Integrated DMA engine for efficient data transfer
• Address translation capabilities
• Interrupt handling support
• Power management features
• Configuration space access
• Multiple bus mastering capabilities
• Supports both 3.3V and 5V PCI signaling

Benefits:

• Enables the use of legacy PCI cards in modern PCIe systems
• Extends the lifespan of existing PCI hardware
• Reduces the need for costly redesigns
• Simplifies the integration of older PCI devices into new systems
• Provides efficient data transfer with integrated DMA engine
• Offers flexible address translation capabilities
• Supports a wide range of PCI/PCI-X devices

Additional Details:

The PEX8114-BB13BIG is commonly used in industrial computing and embedded systems where legacy PCI cards need to be supported. The chip provides a transparent bridge between the PCIe host and the PCI/PCI-X device, allowing the PCI device to operate as if it were directly connected to the PCIe bus. The integrated DMA engine offloads data transfer tasks from the host processor, improving system performance. It supports various PCI bus configurations and provides power management features to reduce power consumption.