General Description
The VSC7217 is a quad 8-bit parallel-to-serial and serial-to-parallel transceiver chip used for high bandwidth interconnection between busses, backplanes, or other subsystems. Four Fibre Channel and Gigabit Ethernet compliant transceivers provide up to 8.32Gb/s of duplex raw data transfer. Each channel can be operated at a maximum data transfer rate of 1088Mb/s (8 bits at 136MHz) or a minimum rate of 784Mb/s (8 bits at 98MHz). For the entire chip in duplex mode, the aggregate transfer rate is between 6.3Gb/s and 8.7Gb/s.
   
Features
• 4 ANSI X3T11 Fibre Channel and IEEE
    802.3z Gigabit Ethernet Compliant Transceivers
• Over 8 Gb/s Duplex Raw Data Rate
• Redundant PECL Tx Outputs and Rx Inputs
• 8B/10B Encoder/Decoder per Channel,
    Optional Encoder/Decoder Bypass Operation
• “ASIC-FriendlyTM” Timing Options for
    Transmitter Parallel Input Data
• Elastic Buffers for Intra/Inter-Chip Cable
    Deskewing and Channel-to-Channel Alignment
• Tx/Rx Rate Matching via IDLE Insertion/
    Deletion
• Compatible with VSC7211/7212/7214
• Fast-Locking CRU: 100-Bit Clock Periods
• Received Data Aligned to Local REFCLK or to
    Recovered Clock
• PECL Rx Signal Detect and Cable Equalization
• Per-Channel Serial Tx-to-Rx and Parallel Rx-to-Tx
    Internal Loopback Modes
• Clock Multiplier Generates Baud Rate Clock
• Automatic Lock-to-Reference
• JTAG Boundary Scan Support for TTL I/O
• Built-In Self Test
• 3.3V Supply, 3.0W Typ, 3.5W Max.
• 256-pin, 27mm BGA Package