NS32FX16-20 Datasheet | National

NS32FX16-15 NS32FX16-20 NS32FX16-25 Imaging Signal Processor PRELIMINARY July 1991 NS32FX16-15 NS32FX16-20 NS32FX16-25 Imaging Signal Processor General Description The NS32FX16 is a high-performance 32-bit member of the Series 32000 EPTM family of National’s Embedded System Processors TM specifically optimized for CCITT Group 2 and Group 3 Facsimile Applications Data Modems Voice Mail Systems Laser Printers or any bination of the above It can perform all the putations and control functions required for a stand-alone Fax system a PC add-in Fax Data Modem card or a Laser Fax system It also meets the performance requirements to implement 9600 and 7200 bps modems plying with CCITT V 29 and V 27 standards The NS32FX16 provides a 16 Mbyte Linear external address space and a 16-bit external data bus The CPU core which is the same as that of the NS32CG16 incorporates a 32-bit ALU and instruction pipeline and an 8-byte prefetch queue Also integrated on-chip with the CPU are a DSP Module and a 384-byte RAM Array The DSP Module executes vector operations on plex variables and is specially designed to enhance performance in modem applications The vector operations can also be used to efficiently implement FIR Filters and other DSP primitives The on-chip RAM Array is used to store the coefficients of the various filters and can be accessed by both the CPU and the DSP Module The NS32FX16 capabilities can be expanded by using an external floating point unit (FPU) which directly interfaces to the NS32FX16 using the slave protocol The CPU-FPU cluster Features high speed execution of the floating-point instructions The NS32FX16 highly-efficient architecture bined with the NS32CG16 graphics instructions and the high-performance vector operation capability makes the device the ideal choice for Postscript TM and Fax applications Features Y Y Y Y Y Software patible with the Series 32000 EP processors Designed around the CPU core of the NS32CG16...