Fourth Generation (4G) wireless communication systems aim to allow peak data
rates in the range of 1 Gbps for nomadic access and 100 Mbps for vehicular mobil-
ity. 4G aims to support current and emergent multimedia services, such as mobile
TV, social networks and gaming, high-definition television and video telecon-
ference, multimedia messaging service, using the All-over IP concept and with
improved quality of service.
CAN 是 Controller Area Network 的縮寫,是 ISO 國際標準化的串行通信協議。CAN總線有兩個ISO國際標準:ISO11898 和 ISO11519。ISO11898 定義了通信速率為 125 kbps~1 Mbps 的高速 CAN 通信標準,屬于閉環總線,傳輸速率可達1Mbps,總線長度 ≤ 40米。ISO11519 定義了通信速率為 10~125 kbps 的低速 CAN 通信標準,屬于開環總線,傳輸速率為40kbps時,總線長度可達1000米描述了can通信協議
Overview The MT7628 router-on-a-chip includes an 802.11n MAC and baseband,a 2.4 GHz radio and FEM,a 575/580MHz MIPS? 24K% CPU core,a 5-port 10/100 fast ethernet switch. The MT7628 includes everything needed to build an AP router from a single chip. The embedded high performance CPU can process advanced applications effortlessly, such as routing, security and VolP. The MT7628 also includes a selection of interfaces to support a variety of applications, such as a USB port for accessing external storage.Features· Embedded MIPS24KEc(575/580 MHz) with 64KBl-Cache and 32 KB D-Cache·2T2R 2.4 GHz with 300 Mbps PHY data rate· Legacy 802.11b/g and HT 802.11n modes·20/40 MHz channel bandwidth· Reverse Data Grant(RDG)· Maximal Ratio Combining(MRC)· Space Time Block Coding(STBC)· MCM 8 Mbytes DDR1 KGD(MT7628KN)