The TI PCI2040 is a PCI-DSP bridge that provides a glueless connection between the 8-bit host port interface (HPI) port on the TMS320C54X or the 16-bit HPI port on TMS320C6X to the high performance PCI bus. It provides a PCI bus target interface compliant with the PCI Local Bus Specification.

The PCI2040 provides several external interfaces: the PCI bus interface with compact PCI support, the HPI port interface with support for up to four DSPs, a serial ROM interface, a general-purpose input/output interface (GPIOs), and a 16-bit general-purpose bus to provide a glueless interface to TI JTAG test bus controller (TBC). The PCI2040 universal target-only PCI interface is compatible with 3.3-V to 5-V signaling environments.

The PCI2040 interfaces with DSPs via a data bus (HPI port). The PCI2040 also provides a serial ROM interface for preloading several registers including the subsystem ID and subsystem vendor ID.

The PCI2040, compliant with the latest PCI Bus Power Management Interface Specification, provides serveral low-power features that reduce power consumption. Furthermore, an advanced CMOS process achieves low system power consumption.

Unused PCI2040 inputs mus be pulled to a valid logic level using a pullup resistor.

• PCI bus target only, supporting both single-word reads and writes
• Write transaction posting for improved PCI bus performance
• Provides glueless interface to host port interface (HPI) port of C54x and/or C6x
• Up to four DSP devices on HPI
• Allows direct access to program and control external devices connnected to PCI2040
• Serial ROM interface for loading subsystem ID and subsystem vendor ID
• A 16-bit general-purpose bus (GPB) that provides glueless interface to TI JTAG TBC
• 3.3-V core logic with universal PCI interface compatible with 3.3-V to 5-V signaling environments
• Advanced submicron, low-power CMOS technology
• 144-pin device and choice of surface mount packaging: TQFP or 12 mm x 12 mm MicroStar BGA
• Up to 33 MHz PCI bus frequency

• Type
• Bridge
• Protocols
• PCIe
• Applications
• PCIe
• Number of channels (#)
• 1
• Speed (Max) (Gbps)
• 0.033
• Supply voltage (V)
• 3.3, 5
• Rating
• Catalog
• Operating temperature range (C)
• 0 to 70

PCI2040的完整型号有：PCI2040PGE，以下是这些产品的关键参数及官网采购报价：

PCI2040PGE，工作温度：0 to 70，封装：LQFP (PGE)-144，包装数量MPQ：60个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网PCI2040PGE的批量USD价格：16.735（1000+）

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