MC68882RC25A Freescale, MC68882RC25A Datasheet
MC68882RC25A
Specifications of MC68882RC25A
Available stocks
Related parts for MC68882RC25A
MC68882RC25A Summary of contents
Page 1
... ROM, including operations. calls, context switches, and interrupt with the main processor. of multiple floating-point instructions 8-, 16-, or 32-bit data bus. herein are subject to change without notice. For More Information On This Product, Go to: www.freescale.com ,,, ., ., .,,.,, Order this document MC68882 $. : ::? “ :’:~.+i ‘! : :,., \,}txi\\/.. .,1., ?< ...
Page 2
... MC68020 bus. Figure 7 illustrates ration. emulation of the As shown in Figure 8, the MC68882 is internally or relinking user into three processing Go to: www.freescale.com HARDWARE OVERVIEW floating-point to interface with the MC68020 or MC68030 This device fully supports the MC68020 virtual machine architecture and is imple- ...
Page 3
... Freescale Semiconductor, Inc For More Information On This Product, MC- BRW/Rev, 3 ROUNOING ROUNDING B~e Figure 3. Mode Control Go to: www.freescale.com FPO FP1 FP2 FP3 FLOATING POINT DATA REGISTERS FP4 FP5 MOOE NEAREST 01 TOWARD ZERO 10 TOWARD MINUS INFINIW 11 TOWARD PLUS INFINIV PRECISION: 00 EXTENDED 01 SINGLE 10 DOUBLE ...
Page 4
... Freescale Semiconductor, Inc Figure 4. Condition Code B QUOTIENT 1 Figure 5, Quotient For More Information On This Product, Go to: www.freescale.com NAN NOT A NUMBER lNFINl~ ZERO NEGATIVE B~e OR UNORDERED ...
Page 5
... MC68030 fetch all operands results. In this manner, bus transfer bit data bus provides high speed transfer of floating-point operands and results while simplifying code during the MC68882. Go to: www.freescale.com codes are generated by the M68000 to identify eight separate address coprocessor inter- do not infringe ...
Page 6
... Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com ...
Page 7
... FMOVE instructions for single and double ex- FMOVE instruc- MC68882 consists of 96 bits (three long words), are also bits are actually For More Information On This Product, Go to: www.freescale.com ,. ,, fully concurrent and, therefore, executed during the execution of a previous than the MC68881 arithmetic ...
Page 8
... M68000 Family processors. registers FPOthrough ory with one instruction. as 96-bit extended possibility of conversion move multiple FMOVEM FP3 FMOVEM The move multiple in the ex- text switches data Go to: www.freescale.com contain extended precision values. All to extended precision before a specific operation is performed, precision. The use of ex- ensures ...
Page 9
... Monadic operations may floating-point an MC68020 or MC68030 data register. run- ways stored in a floating-point to save as the syntax for square root is: or ov- FSQRT.<fmt> by these oper- FSQRT.X FSQRT.X Go to: www.freescale.com PACKED DECIMAL REAL . . . have one operand. This operand data register, memory The result is al- data register. For example, < ...
Page 10
... NGE of the M68000 Family NGT exist due to the spe- SNE arithmetic. When a con- ST the MC68882 performs For More Information On This Product, Go to: www.freescale.com condition checking and reports or MC68030 whether the condition or MC68030 then takes the appro- action. Since the MC68882 and ...
Page 11
... MC68882. (gener- are both 32 bytes larger register word, and the + a by the MC68882 ens- The For More Information On This Product, Go to: www.freescale.com ... . . . . ,,, ,,.. .. .. . ,,. .. ..... . . .,, ,,” word prevents a saved MC68881 context into an MC68882 and vice versa. Not-A-Number), ...
Page 12
... MC68030 of valid data on D16-D31 instead of DO-D15. over An external both DSACKO and DSACKI high and/or order to reduce the signal DSACKI Go to: www.freescale.com input signal indicates that there is a (R~) signal lines are valid. input signal enables the main processor interface registers. ...
Page 13
... Input/Output SIZE G m Rim m DSACKO, DSACK1 output RESET CLK SENSE Input/Output Vcc GND For More Information On This Product, Go to: www.freescale.com ,’ Comments D15-D8, or D7-DO Bus Cycle to minimum and m~~~~.~’’pe- ~’~ $..;.., ,w~\.:.\l~. “:$w,. ,.,<,,, ,*S.$.* ‘y,, ,,:,,? it,. . > ,k.:.:t.:, ,,.$ ~! *!V$ ,$~ ~~~fi,$~ditional to exte{~’~?$t~~dware ...
Page 14
... MAIN PROCESSOR CLOCK figure 13. 8-Bit Data Bus Coprocessor bus. The MC68882 is configured to operate over an 8-bit data bus when the SIZE pin is connected to GND. The twenty-four least-significant connected to the eight most-significant Go to: www.freescale.com ,, I v. DEcoDE I - SIZE D24-D31 D16-D23 Da-D15 DO-07 ...
Page 15
... Wh~@ ~-cted and the DSACKO pin chip #&#ct (CS) decode is system dependent, ~#st - ,“ M’AIN PRbCESSOR I COPROCESSOR CLOCK For More Information On This Product, Go to: www.freescale.com --- .,,. . ,.’ ,,, ,. processor, the MC68882 select (CS) decode, is system dependent. the MC68882 CS in the supervisor or user data spaces, if the MC68010 is used for the main processor, ...
Page 16
... GND = O Vdc; TA= O°Cto 700C) —— —— CLK, RESET, R/~, AO-A4, CS, DS, AS, SIZE ~, m, DO-D31 ~, m, DO-D31 ~, ~, DO-D31 SENSE Go to: www.freescale.com <,*,:b’+~ can be (0.jA) -. :.?. components, OJC and eCA, repre- package (case) surface and from the (eJc) (OCA). These terms are re- eJA= 6JC+ ...
Page 17
... Min Max -~+. * :.,! As&’~#’@ 15 (Read (Write Invalid 10 Invalid o (Read) o (Write (Read) 15 (Read) 15 (Write) 35 Negated Negated to For More Information On This Product, Go to: www.freescale.com , ,.. ,. 20 MHz 25 MHz 33.33 MHz Min Max Min Max Min Max 16.7 12.5 20 12.5 25 33. — 5 — ...
Page 18
... Note that the testing to the AC specifications inputs must be DC operation in. Figure 20. Outputs characteristics. Go to: www.freescale.com 20 MHz 25 MHz 33.33 MHz Unit Max Min Max Min Max — 30 — ...
Page 19
... MC= BRW/Rev. 3 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com I MOTOROM 19 ...
Page 20
... Freescale Semiconductor, Inc. For More Information On This Product, MOTOROW to: www.freescale.com — 22 — — — t- MC- BR~/Rev. 3 ,,, . ,,,,.,,- ~,,,,, ‘\,, ,,. ;. , , ...
Page 21
... Freescale Semiconductor, Inc. S1 — For More Information On This Product, MC- BRW/Rev to: www.freescale.com S5 S4 MOTOROU 21 ...
Page 22
... Freescale Semiconductor, Inc. CLK ORIVE J TO 0,5 V VALID OUTPUTS(1) CLK OUTPUT For More Information On This Product, MOTOROU z DRIVE TO 2 -2 c2.0v vALID 2,0 v ‘ n 0,8V7 ~0,8V OUTPUTn+l — Go to: www.freescale.com 0.8 V MC= BRW/Rev. 3 ...
Page 23
... GND GND SENSE D2 D5 GND\$ 0<::.,0’’”0 D4 ,,?}W6 “~{~~ Vcc GND TDP VIEW For More Information On This Product, Go to: www.freescale.com . .“----. ....... ... . .. . ........ . . ,. ..,.. ... ... . ,.. ,.,’ ,. DATA D26 D24 D22 GND D23 D21 000 GND D19 Vcc 00 D20 D18 00 D17 D16 00 Vcc GND 0 q ...
Page 24
... Freescale Semiconductor, Inc. MOTOROM 24 ., ..,. . . .. . . ,,. .. . ,. — For More Information On This Product, Go to: www.freescale.com . . . . ... .,,, . ,. ,,. M~ BR~/Rev ........ . ...
Page 25
... Gl,TRUE POSITION TO BE MEASURED AT DATUM -T-, SEATINGPLANE. 4,DIM R AND U DO NOT INCLUDEMOLO PROTRUSION. ALLOWABLE MOLD PROTRUSION IS0.25 (0,010} PERSIDE, 5.DIMENSIONING AND TOLERA.NCING P ERANSI Y14.5M, 1 982. 6.CONTROLLINGDIMENSION: INCH, For More Information On This Product, Go to: www.freescale.com T N@P@ L& @-P@ L@ CASE 779-02 S HALL MOTOROLA ...
Page 26
... Arizona 85036. Center; 88 Tanners Drive, Blakelands Milton H.K. Ltd.; PO. Box 80300; Cheung Sha Wan Post Office; For More Information On This Product, Go to: www.freescale.com . . IN FORMATION,., or Special Processing. in life support devices or systems for the use intended. Motorola and@ are registered Keynes, MK145BP, England. ...