NS486SXF Datasheet | National

NS486SXF Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems ADVANCE INFORMATION February 1997 NS486 TM SXF Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems General Description The NS486SXF is a highly integrated embedded system controller incorporating an Intel486TM -class 32-bit processor all of the necessary System Service Elements and a set of peripheral I O controllers tailored for embedded control systems It is ideally suited for a wide variety of applications running in a segmented protect-mode environment Key Features 100% patible with Vx Works VRTX QNX Neutrino p SOS a TM and other popular real-time executives and operating system kernels Intel486 instruction set patible (protected mode only) with optimized performance CPU includes a 1 Kbyte Instruction Cache Operation at 25 MHz with 5V supply Low cost 160-pin PQFP package Industry standard interrupt controller timers real time clock UART with Ir DA v1 0 (Infrared Data Association) port Intel 82365 patible PCMCIA interface Protected WATCHDOGTM timer Optimized DRAM Controller (supports two banks up to 8 Mbytes each) Up to nine versatile programmable chip selects Glueless interface to ISA peripherals Arbitration support for auxiliary processor Four external DMA channels (max transfer rate of 25 MByte sec 25 MHz) support many transfer modes High performance IEEE 1284 (ECP) Bidirectional Parallel Port MICROWIRETM Access bus synchronous serial interfaces LCD Controller for an up to 4 grey scale supertwist Liquid Crystal Displays up to 480 X 320 Reconfigurable I O Up to 29 I O pins can be used as general purpose bidirectional I O lines Flexible programmable multilevel power saving modes maximize power savings NS486SXF Single-Chip Embedded Controller TL EE 12514 - 1 TRI-STATE is a registered trademark of National Semiconductor Corporation NS486TM WATCHDOGTM and MICROWIRETM are trademarks of...