PivotPoint SPI-4.2 Interconnect Chip
Based on the popular SPI-4.2 interface standard, PivotPoint provides efficient interconnection of packet and protocol processing resources on a line card. By introducing a low-latency, fully-connected and reconfigurable multi-gigabit data path to the line card, PivotPoint converts traditional discrete data path designs into completely reconfigurable data paths. The result is a line card design that offers greater flexibility, greater modularity, higher throughput, and lower design and materials cost.
 The
PivotPoint FM1010 converts a fixed-configuration half-duplex daisy-chain
of devices with SPI-4.2 interfaces (such as NPUs, traffic managers, co-processors,
search engines, custom ASICs, and FPGAs) into a dynamically-reconfigurable
full-duplex resource pool, enabling more efficient use of the silicon
resources, and eliminating the custom glue logic that often accompanies
complex system designs.
The PivotPoint FM1010 simplifies system design, while improving performance
and configuration flexibility, and reducing component cost, system power,
and time to market. The device enables system silicon to be addressed
as shared resources, rather than discrete, hard-connected devices.
FM1010 Features
- Six independent System Packet Interfaces (SPI-4.2)
- Each is an independently-clockable dual-simplex interface
- Each can support data rates up to 14.4 Gbps
- Dynamic or static phase alignment
- LVTTL status channel
- Configurable packet buffer (16KB ingress; 16KB egress) per
interface
- Up to 256 flow-controlled channels per interface
- Fully-connected non-blocking switching
- Soft-configurable interface and channel assignment
- 16-bit standard CPU interface
- JTAG and boundary scan support
- Up to 3x internal over speed
- Built-in fine-grain flow control
- Independent enable / disable control for each interface (reduces
power)
- Loopback control for each interface
- Statistics and error reporting
- Modest and flexible power profile
- <2.5 W per active interface, at full speed
- Power scales linearly on activity
- 1.0 V core, 2.5 V LVDS, and 3.3 V LVTTL operation
- 130 nm CMOS process technology
- 1232-ball Ball Grid Array package
The FM1010 can be used at the blade level and for small modular
systems (appliances and "pizza boxes") in high-speed communications
and computing applications where the SPI-4.2 interface is used to
interconnect the silicon resources in the system.
- Ethernet Switches and Routers
- SAN Switches and Gateways
- Enterprise Compute Servers
- Multi-Service Platforms
- Enterprise Firewalls and Gateways
- Enterprise Services Appliances
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