The PI7C8140A is a PCI-to-PCI bridge manufactured by Pericom (now Diodes Incorporated). It allows connecting two PCI buses, enabling expansion and increased bandwidth in computer systems and embedded applications. This bridge supports both upstream and downstream traffic.

Applications

• Computer motherboards
• Embedded systems
• Industrial PCs
• Data acquisition systems
• Networking equipment
• PCI expansion cards

Features

• PCI-to-PCI bridge
• Supports 33 MHz and 66 MHz PCI clocks
• 32-bit PCI interface
• Supports master and target operation
• Integrated DMA controller
• Supports Type 0 and Type 1 configuration transactions
• Compliant with PCI Local Bus Specification

Benefits

• Extends PCI bus capabilities.
• Enables connection of multiple PCI devices.
• Increased bandwidth and system performance.
• Flexibility in system design.
• Simplified integration of PCI devices.

Additional Details

The PI7C8140A PCI-to-PCI bridge operates at both 33 MHz and 66 MHz PCI clock frequencies, providing compatibility with a wide range of PCI devices. It supports 32-bit PCI interfaces on both the primary and secondary buses. The integrated DMA controller enhances data transfer performance between the two buses. The bridge handles both Type 0 and Type 1 configuration transactions, ensuring proper device configuration. This device allows for increasing the number of available PCI slots in a system, and helps segment the PCI bus to improve overall throughput.

The PI7C8140A is a reliable and efficient PCI-to-PCI bridge that is widely used in a variety of computer systems and embedded applications. It is a crucial component for expanding PCI bus capabilities and improving system performance.