DATA SHEET
PMC-970113
ISSUE 3
PM3351 ELAN 1X100
SINGLE PORT FAST ETHERNET SWITCH
• Flow control supported for both full duplex and half duplex operation: supports
IEEE 802.3x PAUSE frame flow control in full-duplex mode, and supports user-
enabled backpressure flow control in half-duplex mode with configurable buffer
thresholds and limits.
• Configuration, management, MIB statistics and diagnostics available in-band or
out-of-band.
• Maintains and collects per-port and per-host statistics at wire rates, allowing a
network switch comprised of PM3351 and PM3350 chips to implement RMON
statistics (EtherStats and HostStats) using supplied on-chip firmware.
• Interfaces directly to industry-standard 100 Mbit/s transceivers with no glue logic
via the built-in Medium Independent Interface (MII) port with full support for the
autonegotiation function implemented by the PHY devices.
• Fully static CMOS operation at 50 MHz clock rates.
• 3.3 Volt core, 5 Volt compatible I/O
• 208 pin PQFP package.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 2