PM3390 Overview
PM3390 Each chip supports the EXACT Bus Protocol, which is a 10-bit, unidirectional insertion ring running at 125 MHz or 135 MHz. EXACT Bus ports allow simple box-tobox, card-to-card, or chip-to-chip interconnect. 8B/10B EXACT Bus encoding is patible with mon Serialization (SERDES) devices to allow serial extension using coax or twinax cable.
PM3390 Key Features
- Sixteen Gbit/s, protocol-independent switching matrix expandable to 32 Gbit/s
- Provides eight gigabit, full-duplex EXACT™ Bus ports that each support an EXACT switch port controller
- Provides non-blocking connection between eight EXACT Bus (Ethernet Switching, Access, Control, and Termination) rings
- Supports non-blocking connections between sixteen EXACT Bus rings to provide a system bandwidth of 32 Gbit/s using four
- Destination lookup table maps logical EXACT ports to physical PM3390 ports. Destination lookup table can be dynamically
- Provides visibility into internal dataflow to allow external flow control in systems that do not use the EXACT Bus link
- Provides a standard five signal P1149.1 JTAG test port for boundary scan board test purposes
- Implemented in low power 3.3 V, CMOS technology
- Available in a 352-pin Ball Grid Array (BGA) package
PM3390 Applications
- High Bandwidth (16 to 32 Gbit/s) Ethernet Switches that Support binations of 10/100/1000 Ports