NUC972DF62Y

ARM9处理器,内置64MB DDR2，最多11个串口，LQFP-216

* Core * ARM® ARM926EJ-S™ processor core runs up to 300 MHz * Support 16 KB instruction cache and 16 KB data cache * Support MMU * Support JTAG Debug interface * External Bus Interface EBI * Support SRAM and external I/O devices * Support 8/16-bit data bus width * Support up to five chip selects for SRAM and external I/O devices * Support programmable access cycle * Support four 32-bit write buffers * DDR SDRAM Controller * Support DDR2 SDRAM * Clock speed up to 150 MHz * Support 16-bit data bus width * Memory size depended on embedded SDRAM configuration by different part number. * Embedded SRAM and ROM * Support 56K bytes embedded SRAM * Support 16K bytes Internal Boot ROM IBR * Support up to four booting modes * Boot from USB * Boot from eMMC * Boot from NAND Flash * Boot from SPI Flash * Clock Control * Support two PLLs, up to 500 MHz, for high performance system operation * External 12 MHz high speed crystal input for precise timing operation * External 32.768 kHz low speed crystal input for RTC function and low speed clock source * Ethernet MAC Controller * Support up to 2 Ethernet MAC controllers * Support IEEE Std. 802.3 CSMA/CD protocol * Support packet time stamping for IEEE Std. 1588 protocol * Support 10 and 100 Mbps operations * Support Half- and Full-duplex operations * Support RMII interface to Ethernet physical layer PHY * Support Ethernet physical layer PHY management through MDC and MDIO interface * Support flow control in Full-duplex mode to receive, recognize and transmit PAUSE frame * Support CAM-like function to recognize 48-bit Ethernet MAC address * Support Wake-On-LAN by detecting Magic Packet * Support 256 bytes transmit FIFO and 256 bytes receive FIFO * Support DMA function * Support internal loop back mode for diagnostic * USB 2.0 Controller * Support USB Revision 2.0 specification * Support one set of USB 2.0 High-Speed HS Device/Host with embedded transceiver