CP220X Single-Chip Ethernet controller
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Silicon Laboratories' new CP220x is the industry's smallest and highest performance single-chip Ethernet controller addressing the most widely deployed local area network (LAN) technology today. In addition to the 802.3-compliant PHY and MAC, the CP220x includes 8 kB of integrated Flash memory that is factory preprogrammed with a unique 48-bit MAC address. In many cases, this eliminates the serialization step from the product manufacturing process of most embedded systems. The on-chip memory can be used to store user constants, web server content, or can be used as general-purpose non-volatile memory.
The CP220x also offers a parallel external memory interface with an operating speed of up to 30 Mbps allowing the companion MCU to execute stack or other operations much more efficiently. The stand-alone CP220x Ethernet controller can be combined with Silicon Laboratories' MCUs to create an optimized embedded solution in terms of performance and system cost.
- Automatic retransmission on collision
- Automatic padding and CRC generation
- Supports broadcast and multi-cast MAC addressing
- Parallel host interface with up to a 30 Mbps transfer rate
- 8kB of on-chip Flash memory factory preprogrammed with a unique 48-bit MAC address
- LED output drivers (Link/Activity)
- Dedicated 2kB RAM transmit buffer and 4 kB receive FIFO buffer
- 5V tolerant I/Os
- Extended temp operation: -40 to +85°C
- Low current consumption: 70 mA (typ)
- Small size: 5x5mm QFN; 9x9mm TQFP