the high-speed v852 microcontroller features the high-performance 32-bit risc engine of necs v850 ? family and targets low-power designs with large embedded code. the device has nearly three times the on-chip memory of the v851 ? (90k versus 32k of rom and 3k versus 1k of ram). many versions of the v850 core are available as part of necs asic library. the architecture of the v852 device is highly optimized for fast dsp-like operation and very efficient implementation of c programmability. v852 ? 32-bit risc microcontroller specifications block diagram clock frequency: dc to 25 mhz performance C 29 dhrystone mips C 133 mips/w two-cycle mac instruction 5v operation power consumption: 217 mw at 25 mhz 0.5-m cmos process technology 6.15 mm x 6.15 mm die size package C 100-pin plastic qfp C 14 mm x 14 mm 96fm-1034c (11/98) alu nmi astb cksel pllsel clkout intp00 to intp03 intp10 to intp13 rom/prom sio cpu bcu ram to10, to11 mode ad 0 ?d 15 a 16 ? 19 dstb r/w uben lben wait hldrq hldak reset x1 x2 clock generator system control programmable interrupt controller real-time pulse unit 90k 3k 32-bit barrel shifter pc system register general- purpose registers (32-bit x 32) multiplier 16 x 16 32 bus control unit instruction queue p0 port txd rxd tclr1 ti1 brg0 csi0 so0 si0 sck0 so1 si1 sck1 p1 p2 p3 p4 p5 p6 p9 p10 uart brg1 csi2 so3 si3 sck2 csi1 s e r i e s 850 850 s e r i e s
fea ture description ordering informa tion cpu highly integrated micr ocontr oller C 32-bit arithmetic logic unit (alu) C thir ty-two general-purpose 32-bit r egisters C 32-bit bar r el shifter single-cycle 16 x 16 > 32-bit har dwar e multiplier power ful risc instr uction set C 74 risc instr uctions: 16- and 32-bit C t wo-cycle mac function for dsp applications C saturated operation instr uctions (over/ under flow detection function) C single-cycle 32-bit shift instr uctions C bit manipulation instr uctions C load and stor e instr uctions with 8-/16-/32-bit data fast instr uction execution: 40 ns at 25 mhz memor y 90k single-cycle inter nal rom or prom 3k single-cycle inter nal ram external bus interf ace 16-mb linear exter nal memor y expansion multiplexed 24-bit addr ess/16-bit data bus pr ogrammable and exter nal wait functions idle state inser tion for slow memor y multiple bus mastership interrupts 16 maskable inter r upts plus nmi eight pr ogrammable priority levels on all inter r upts and traps specifiable rising and/or falling edge detection 32 softwar e traps peripherals 68 general-purpose, r eassignable i/o pins real-time pulse unit C 16-bit timer/event counter with four 16-bit captur e/compar e r egisters C 16-bit inter val timer serial inter face C uar t C clocked serial inter face: thr ee channels C dedicated baud rate generator: two channels clock generator C inter nal pll (5x or 1x) C dir ect clock input ( 1 / 2 x) other power saving featur es C halt/idle/stop modes C clock output stop function C fully static operation p ar t number internal rom p ackage PD70P3002GC-25-7EA 90k otp prom 100-pin plastic qfp (fine pitch), 14 mm x 14 mm pd703002gc-25-xxx-7ea 90k masked rom 100-pin plastic qfp (fine pitch), 14 mm x 14 mm note: xxx indicates rom code suf fix. ? 1998 nec electr onics inc. nec, v850, v851 and v852 ar e either trademarks or r egister ed trademarks of nec corporation in the united states and/or other countries. all other trademarks ar e the pr oper ty of their r espective owners. no par t of this document may be copied or r epr oduced in any for m or by any means without the prior written consent of nec electr onics inc. (necel). the infor mation in this document is subject to change without notice. all devices sold by necel are covered by the provisions appearing in necel terms and conditions of sa les onl y , including the limit a tion of liabili - ty , w arranty , and p a tent provisions. necel makes no war ranty , expr ess, statutor y , implied, or by description, r egar ding infor mation set for th her ein or r egar ding the fr eedom of the described devices fr om patent infringement. necel assumes no r esponsibility for any er r ors that may appear in this document. necel makes no commitments to update or to keep cur r ent infor mation contained in this document. the devices listed in this document ar e not suitable for use in applications such as, but not limited to, air craft contr ol systems, aer ospace equipment, submarine cables, nuclear r eactor contr ol systems, and life-suppor t systems. standar d quality grade devices ar e r ecommended for computers, of fice equipment, communication equipment, test and measur ement equipment, machine tools, industrial r obots, audio and visual equipment, and other consumer pr oducts. for automotive and transpor tation equipment, traf fic contr ol systems, and anti-disaster and anti-crime systems, it is r ecommended that the customer contact the r esponsible necel sales - person to deter mine the r eliability r equir ements for any such application and any cost adder . necel does not r ecommend or appr ove use of any of its pr oducts in life-suppor t devices or systems or in any application wher e failur e could r esult in injur y or death. if customers wish to use necel devices in applications not intended by necel, customers must contact the r esponsible necel salespeople to deter mine necel s willing - ness to suppor t a given application. document # u11927eu4v0pb00 for literatur e, call 1-800-366-9782 7 a.m. to 6 p.m. pacific time or fax your r equest to 1-800-729-9288 or visit our w eb site at www .nec.com
|
