BCM5226
PRODUCT
®
Brief
O F
B E N E F I T S
1 0 / 1 0 0 B A S E - T X / F X H E X -
Φ
™ T R A N S C E I V E R
B C M 5 2 2 6
F E AT U R E S
S U M M A R Y
•
Single-chip six-port Fast Ethernet transceiver
•
HP Auto-MDIX
•
Low-power 2.5V CMOS technology
•
Compatible with 2.5V I/O and 3.3V I/O
•
Reduced Media Independent Interface (RMII)
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Serial Media Independent Interface (SMII)
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Fully integrated digital adaptive equalization
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On-chip multimode transmit waveshaping
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Edge-rate control eliminates external filters
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Integrated baseline wander correction
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Full-duplex support
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Twisted-pair or fiber support on any or all ports
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Interrupt output capability
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Loopback mode for diagnostics
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160-pin PQFP (BCM5226R)
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128-pin PQFP (BCM5226S)
•
Proven Broadcom proprietary DSP Digi-Φ™
architecture
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Target usage: Fast Ethernet switches.
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Low power < 300 milliwatts per port.
•
Auto-MDIX detects and corrects cabling errors.
•
Provides robust performance over a broad range of
operating conditions.
•
Single-chip device contains six independent Fast
Ethernet transceivers.
•
Performs all physical layer interface functions for
100BASE-TX full-duplex or half-duplex Ethernet on
Category 5 twisted-pair cable and 10BASE-T full- or
half-duplex Ethernet on Category 3, 4, or 5 cable.
paired with an external fiber-optic transceiver.
•
Permits transmission over fiber-optic cabling when
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Compliant with IEEE 802.3 standard.
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IEEE 1149.1 (JTAG) scan chain support.
Quad BCM5208 Versus HEX BCM5226 Comparison
6 Active PHY components
+ 6 MACs including switch fabric
4 Active SMII PHY components
+ SMII MACs embedded in switch chip
Switch Fabric and System Logic
QUAD MAC
QUAD MAC
Switch Fabric with Embedded MACs
24x16=384 MII Pins
24x2=48 SMII Pins
BCM5208
Port 1
BCM5208
Port 24
BCM5226
Port 1
BCM5226
BCM5226
BCM5226
Port 24
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