一个嵌入式TCP/IP协议栈，针对freescale系列单片机。对学习TCP/IP有很好的借鉴作用。-an embedded TCP / IP protocol stack, against Freescale MCU. On learning TCP / IP is a good reference.

Here s the pin-to-pin listing from the AVR to the Packet Whacker module when using the External SRAM Interface: ATmega161 (External SRAM) Packet Whacker PortC A8-A12 SA0-SA4 PortA AD0-AD7 SD0-SD7 PortB