NS32FX164-25 Datasheet | National Semiconductor

Description The NS32FX164 the NS32FV16 and the NS32FX161 are The NS32FX164 capabilities can be expanded by using an high-performance 32-bit members of the Series 32000 external floating point unit (FPU) which directly interfaces to EPTM family of National’s Embedded System Processors TM the NS32FX164 using the slave protocol The CPU-FPU specifically optimized for CCITT Group 2 and Group 3 Fac- cluster features high speed execution of the floating-point simile Applications Data Modems Voice Mail Systems La- instructions ser Printers or any bination of the above Unless specified otherwise any reference to the NS32FX164 in this document applies to the NS32FV16 and the NS32FX161 as well The NS32FX164 can perform all the putations and control functions required for a stand-alone Fax system a PC add-in Fax Voice Data Modem card or a Laser Fax system te It also meets the performance requirements to implement 14400 9600 and 7200 bps modems plying with CCITT V 17 V 29 and V 27 standards The NS32FV16 supports V 29 and V 27 standards as well as voice The NS32FX161 supports V 29 and V 27 standards The NS32FX164 provides a 16 Mbyte Linear external address space and a 16-bit external data bus le 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 (DSPM) and a 4K-byte RAM Array (2K in the NS32FV16 and NS32FX161) The DSPM is a plete processing unit capable of autonomous operation parallel to the CPU core o operation The DSPM executes programs stored in an inter- nal on-chip Random Access Memory (RAM) and manipulates data stored either in the internal RAM or in an external off-chip memory To maximize utilization of hardware resources the DSPM contains a pipelined DSP-oriented data- s path and a control logic that implements a set of DSP vec- tor mands Ob Block Diagram The NS32FX164 highly-efficient architecture bined with the NS32CG16...