GDA's PCI Express Switch controller is a highly flexible and configurable design targeted for switch implementations in desktop, server, mobile, networking and telecom applications. The controller architecture is carefully tailored to optimize link utilization, latency, reliability, power consumption, and silicon footprint.
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GPEX-SW is part of GDA's PCIExpress (GPEX) family of IP solutions, which includes End Point (GPEX-EP), Root Complex (GPEX-RC), Hybrid (GPEX-HY), Switch port Controller (GPEX-SW), Switch (GPEX-SWITCH) and Advanced Switching (GPEX-AS) designs. GPEX-SW comes in 2 flavors, Upstream Switch port and Downstream Switch Port. These flavors allow a Transparent or Non-Transparent PCIe Switch implementation with implementation specific port and Data path arbitration schemes.
The controller's simple, configurable and layered architecture is independent of application logic, PHY designs, implementation tools and, most importantly, the target technology. GDA solution allows the licensees to easily migrate among FPGA, Gate array and Standard cell technologies optimally. Its flexible backend interface makes it easy to be integrated into wide range of applications. |
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| * - Rambus IP; Sold under GDA’s Re-seller agreement with Rambus, Inc. |
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Features |
- Compliant to PCI Express base specification version 2.0* (5.0 Gbps) and fully compliant for PCI Express Specification 1.1 (2.5 Gbps) for Gen1 requirements
- Complaint to Single Root I/O Virtualization and Sharing Specification Revision 1.0
- Compliant to Address Translation Services Revision 1.0
- Implements transaction, data link and physical layers
- Supports multiple lanes: x1, x2, x4, x8 or x16
- Architected for high link utilization and low latency
- Completely handles PCI-Express ordering rules
- Implements flow control logic for both directions
- Optional packet buffer and scheduler modules
- Packet oriented user logic interface
- Supports configurable number of downstream ports
- Supports parallel address decoding
- Supports Type1 configuration space
- Allows access to port configuration space from line and GPI
- Supports Type0/1 configuration conversions
- Handling of UR for both upstream and downstream traffic
- Flexible lane ordering and support for lane reversal
- Supports FLR
- Supports ARI Forwarding
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