Overview
The Texas Instruments PCI2050BIPDVG4 is a high-performance PCI-to-PCI bridge chip designed to connect two peripheral component interconnect (PCI) buses. This chip operates at a maximum bus frequency of 66 MHz and is compliant with the PCI Local Bus Specification and the PCI-to-PCI Bridge Specification (Revision 1.1). It is particularly useful for overcoming electrical loading limits by creating hierarchical buses, allowing for more devices to be connected to the PCI bus.
The PCI2050B bridge supports burst mode transfers, write combining, and delayed transactions, which enhance data throughput. It also features internal two-tier arbitration for up to nine secondary bus masters and supports an external secondary bus arbiter. The chip is designed with advanced submicron, low-power CMOS technology, ensuring low system power consumption while maintaining high performance.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | LQFP (PDV), NFBGA (ZWT) |
| Pins | 208 (LQFP), 257 (NFBGA) |
| Operating Temperature Range | -40°C to 85°C |
| Bus Frequency | Up to 66 MHz |
| Core Logic Voltage | 3.3 V |
| PCI Compatibility | 3.3-V and 5-V PCI signaling environments |
| Secondary PCI Clock Outputs | Ten |
| Arbitration | Internal two-tier arbitration for up to nine secondary bus masters |
Key Features
- Two 32-bit, 66-MHz PCI buses
- 3.3-V core logic with universal PCI interfaces compatible with 3.3-V and 5-V PCI signaling environments
- Internal two-tier arbitration for up to nine secondary bus masters and supports an external secondary bus arbiter
- Ten secondary PCI clock outputs
- Independent read and write buffers for each direction
- Burst data transfers with pipeline architecture to maximize data throughput in both directions
- Supports write combining for enhanced data throughput
- Up to three delayed transactions in both directions
- Frame-to-frame delay of only four PCI clocks from one bus to another
- Bus locking propagation and predictable latency per PCI Local Bus Specification
- CompactPCI hot-swap functionality and secondary bus driven low during reset
- VGA/palette memory and I/O decoding options
- Advanced submicron, low-power CMOS technology
Applications
The PCI2050BIPDVG4 is ideal for various applications requiring high-performance PCI-to-PCI bridging, including:
- Multifunction CompactPCI cards
- Adapting single-function cards to hot-swap compliance
- Systems that require hierarchical bus structures to overcome electrical loading limits
- Embedded systems needing low power consumption and high data throughput
Q & A
- What is the maximum bus frequency supported by the PCI2050BIPDVG4?
The PCI2050BIPDVG4 supports a maximum bus frequency of 66 MHz.
- What types of PCI signaling environments is the PCI2050BIPDVG4 compatible with?
The PCI2050BIPDVG4 is compatible with both 3.3-V and 5-V PCI signaling environments.
- How many secondary PCI clock outputs does the PCI2050BIPDVG4 provide?
The PCI2050BIPDVG4 provides ten secondary PCI clock outputs.
- Does the PCI2050BIPDVG4 support CompactPCI hot-swap functionality?
Yes, the PCI2050BIPDVG4 supports CompactPCI hot-swap functionality.
- What is the operating temperature range of the PCI2050BIPDVG4?
The operating temperature range of the PCI2050BIPDVG4 is -40°C to 85°C.
- How many pins does the LQFP package of the PCI2050BIPDVG4 have?
The LQFP package of the PCI2050BIPDVG4 has 208 pins.
- Does the PCI2050BIPDVG4 support write combining for enhanced data throughput?
Yes, the PCI2050BIPDVG4 supports write combining for enhanced data throughput.
- What is the frame-to-frame delay from one bus to another in the PCI2050BIPDVG4?
The frame-to-frame delay from one bus to another in the PCI2050BIPDVG4 is only four PCI clocks.
- Is the PCI2050BIPDVG4 compliant with the PCI Bus Power Management Interface Specification?
Yes, the PCI2050BIPDVG4 is compliant with the PCI Bus Power Management Interface Specification (Revision 1.1).
- What technology is used in the PCI2050BIPDVG4 to achieve low system power consumption?
The PCI2050BIPDVG4 uses advanced submicron, low-power CMOS technology to achieve low system power consumption.
