Interface Selection Guide
Interface Selection Guide
Interface Selection Guide
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26 PCI Bridges<br />
➔<br />
Design Considerations<br />
Peripheral Component Interconnect (PCI)<br />
is an interconnection system between a<br />
microprocessor and attached devices in<br />
which expansion slots are spaced closely<br />
for high-speed operation. A PCI-to-PCI<br />
bridge is a high-performance connection<br />
path between two PCI buses that allows<br />
bridge transactions to occur concurrently<br />
on both buses. Burst-mode transfers<br />
maximize data throughput while the two<br />
bus traffic paths through the bridge act<br />
independently. In future systems, many<br />
PCI bus structures will be replaced by<br />
PCI Bridge Family of Products<br />
the new serial PCI Express architecture.<br />
TI is actively developing a portfolio of PCI<br />
Express products to address this new<br />
market.<br />
Key Features<br />
• Two 32-bit, 33- or 66-MHz buses<br />
• Configurable for PCI powermanagement<br />
interface specification<br />
• CompactPCI hot-swap functionality<br />
• 3.3-V core logic with 3.3- to 5-V PCI<br />
signaling compatibility<br />
• Intel ® bridge compatibility<br />
• Transparent bridging<br />
Typical PCI-to-PCI Bridge System Application<br />
Technical Information<br />
Capabilities<br />
• TI’s PCI2050B is a 32-bit, 66-MHz<br />
bridge with internal two-tier arbitration<br />
for up to 9 secondary bus masters and<br />
support for an external secondary bus.<br />
There are independent read/write<br />
buffers for each direction and 10<br />
secondary PCI clock outputs.<br />
Functionality<br />
• The PCI2250 is a 33-MHz bridge<br />
similar to the PCI2050B but supports<br />
4 secondary bus masters and 5<br />
secondary PCI clock outputs.<br />
PCI CardBus<br />
CPU<br />
Host Bus<br />
Memory<br />
PCI Bridges<br />
PCI Bus 0<br />
Host<br />
Bridge<br />
PCI<br />
Device<br />
PCI<br />
Device<br />
HPC3130<br />
HPC3130A<br />
<strong>Selection</strong> <strong>Guide</strong><br />
Resources<br />
Literature Number<br />
Application Notes<br />
SCPA029A<br />
SLLA067<br />
SCPA027<br />
SCPA030<br />
SPRA679<br />
PCI2040<br />
PCI2050B<br />
PCI2250<br />
PCI2060<br />
Intel-Compatible Speed Expansion MicroStar BGA Voltage<br />
Device Part No. (MHz) <strong>Interface</strong> (bits) Hot-Swap Packaging (V) Package(s) Description Price 1<br />
PCI Bridges<br />
HPC3130 — 33 32 — No 3.3 128 LQFP, 120 QFP Hot-plug controller 10.95<br />
HPC3130A — 66 64 — No 3.3 144 LQFP, 128 LQFP, Hot-plug controller 10.95<br />
120 QFP<br />
PCI2040 — 33 — — Yes 3.3, 5 144 BGA, PCI-to-DSP bridge controller, compliant with 10.55<br />
144 LQFP Compact PCI Hot-Swap Specification 1.00<br />
PCI2050B 21150bc 66 32 Yes Yes 3.3, 5 208 LQFP, 32-bit, 66-MHz, 9-master PCI-to-PCI bridge 9.50<br />
208 QFP, 257 BGA<br />
PCI2250 21152ab 33 32 Friendly No 3.3, 5 176 LQFP, 32-bit, 33-MHz PCI-to-PCI bridge, Compact 6.10<br />
160 QFP PCI hot-swap friendly, 4-master<br />
PCI2060 — 66 32 Yes Yes 3.3, 5 257 BGA 32-bit, 66-MHz, 9-master, asynchronous 9.50<br />
PCI-to-PCI bridge<br />
1<br />
Suggested resale price in U.S. dollars in quantities of 1,000.<br />
For a complete list of resources (data sheets and application notes), visit interface.ti.com<br />
Description<br />
PCI Bus 1<br />
PCI2050B<br />
Adding Debounce Logic to /HSSwitch Terminal<br />
Comparing Bus Solutions<br />
Connecting ENUM Terminal to an External Open-Drain Buffer<br />
Interfacing the PCI2040 to the TMS320VC5420 DSP<br />
Texas Instruments TMS320VC5409/5421 DSP to PCI Bus<br />
PCI2050B<br />
PCI Bus 2<br />
PCI Option Slot<br />
PCI<br />
Device<br />
PCI<br />
Device<br />
PCI Option Card<br />
PCI Option Card<br />
(Option)<br />
<strong>Interface</strong> <strong>Selection</strong> <strong>Guide</strong> Texas Instruments 3Q 2005
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