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1210 'GO,BO SUBROUTINE 1220 R1#=GN#/(GN#A2+B1#A2)-RS# 1230 X1#=B1#/(GN#A2+B1#A2) 1240 GO#=R1#/(R1#A2+X1#A2) 1250 BO#=X1#/(R1#A2+X1#A2) 1260 CO#=BO#/2/PI#/FO# 1270 RO#=l/GO# 1280 RETURN 1290 'Z SUBROUTINE (LINE SIDE) 1300 BO#=2*PI#*F*CO# 1310 B1#=1/2/PI#/F/L# 1320 MAG#=I/SQR(GO#A2+BO#A2) 1330 ANGLE#=-ATN(BO#/GO#) 1340 REAL#=MAG#*COS(ANGLE#l+RS# 1350 IMAG#=MAG#*SIN(ANGLE#) 1360 MAG#=I/SQR(REAL#A2+IMAG#A2) 1370 ANGLE#=-ATN(IMAG#/REAL#) 1380 REAL#=MAG#*COS(ANGLE#) 1390 IMAG#=MAG#*SIN(ANGLE#)-Bl# 1400 MAG#=1/SQR(REAL#A2+IMAG#A2) 1410 ANGLE#=-ATN(IMAG#/REAL#) 1420 REAL#=RP#+MAG#*COS(ANGLE#)/NO#A2 1430 IMAG#=MAG#*SIN(ANGLE#)/NO#A2 1440 IF E=1 THEN 1470 1450 PRINT USING "##### ####.# ####.# ####.# +##.#";F,REAL#,IMAG#,SQR(REAL#A 2+IMAG#A2),FNATND#(IMAG#/REAL#) 1460 LPRINT USING "##### ####.# ####.# ####.# +##.#";F,REAL#,IMAG#,SQR(REAL# A2+IMAG#A2),FNATND#(IMAG#/REAL#) 1470 RETURN 1480 LPRINT 'Z (MODEM SIDE) 1490 PRINT 1500 DATA 1000,400,-550,450,-500,450,-700,650,-600,650,-750,850,-500,850,-700,10 50,-300,1050,-600,1100,-400 1510 DATA 2000,400,-525,450,-500 1520 DATA 2500,300,-500,350,-450 1530 LPRINT"EFFECT OF TRANSFORMER AND CO ON APPARENT Zline" 1540 PRINT "EFFECT OF TRANSFORMER AND CO ON APPARENT Zline" 1550 LPRINT 1560 PRINT 1570 PRINT" # Freq Rl ine Xl ine Rin Xin" 1580 LPRINT "# Freq Rl ine Xl ine Rin Xin" 1590 PRINT 1600 LPRINT 1610 FOR M=O TO 2 1620 READ F1# 1630 IF M=O THEN 1730 1640 IF M=1 THEN 1690 1650 FOR N=13 TO 14 1660 GOSUB 1800 1670 NEXT N 1680 GOTO 1760 1690 FOR N=11 TO 12 1700 GOSUB 1800 1710 NEXT N 1720 GOTO 1760 1730 FOR N=1 TO 10 1740 GOSUB 1800 1750 NEXT N 1760 NEXT M 1770 RESTORE 1780 GOSUB 2090 'PAUSE SUBROUTINE 1790 GOTO 2170 TL/H/9442-6 5·41
~ .... ,-----------------------------------------------------------------------------, i 1800 READ Rll,Xll 1810 REIICN)=Rll 1820 IMIICN)=Xll 1830 BMI=1/2/PII/FII/LI 1840 BOI=2*PII*Fll*COI 1850 REALI=Rll+RPI 'Zload SUBROUTINE 1860 MAGI=I/NOIA2/SQRCREALI A 2+XII A2) 1870 ANGLEI=-ATN(XII/REALI) 1880 REALI=MAGI*COSCANGLEI) 1890 IMAGI=MAGI*SINCANGLEI)-BMI 1900 MAGI=I/SQR(REALIA2+IMAGIA2) 1910 ANGLEI=-ATNCIMAGI/REALI) 1920 REALI=MAGI.COSCANGLEI)+RSI 1930 IMAGI=MAGI.SINCANGLEI) 1940 MAGI=I/SQRCREALIA2+1MAG#A2) 1950 ANGLEI=-ATNCIMAGI/REALI) 1960 REALI=MAGI*COSCANGLEI) 1970 IMAGI=MAGI.SINCANGLEI)+BOI 1980 MAGI=I/SQRCREALI A 2+1MAGI A 2) 1990 ANGLEI=-ATNCIMAGI/REALI) 2000 REALI=MAGI*COSCANGLEI) 2010 IMAGI=MAGI*SINCANGLEI) 2020 IF N=1 THEN PRINT "NONLOADED LINES, 2W 8. 4W TERMINATIONS" ELSE IF N=11 THEN PRINT "MEDIAN LOADED 8. NONLOADED LINES" ELSE 2040 2030 IF N=1 THEN LPRINT "NONLOADED LINES, 2W 8. 4W TERMINATIONS" ELSE IF N=11 THE N LPRINT "MEDIAN LOADED 8. NONLOADED LINES" ELSE 2040 2040 PRINT USING "II lUI IIII +1111 IIII +111#";N,Fll,RU.Xll,REALI ,IMAGI 2050 LPRINT USING "II IIII IIII I,IMAGI +1111 IIII +111#";N,Fll,Rll,Xll.REAL 2060 RICN)=REALI 2070 XICN)=IMAGI 2080 RETURN 2090 DUMMV"'1 2100 PRINT 2110 WHILE DUMMY 2120 INPUT "HIT 'ENTER' TO CONTlNUE,",DUMMY 2130 WEND 2140 PRINT 2150 RETURN 2160 END 2170 Z=O , SET FLAG: PRINT Gain VS Zload 2180 FCI=1000000! 2190 RW=O 2200 LPRINT 2210 LPRINT "NORMALIZED GAIN FROM TKO TO RUN, dB" 2220 LPRINT 2230 LPRINT "Kt CTKO to RUN) and Kr Csecondary to RXIN) are relatille gains," 2240 LPRINT "meanGdb is the allerage 0' Gdb 'or the 14 line terminations," 2250 FOR 1=1 TO 14 ' CONVERT LINE IMPEDANCE TO LINE ADMITTANCE 2260 GLINEI(I)=RICI)/(RICI)A2+XICI)A2) 2270 BLINEICI)=-XI(I)/CRICI)A2+XICI)A2) 2280 NEXT I 2290 GOTO 2460 2300 LPRINT 2310 PRINT Fe Kt Kr meanGdb" • PRINT Fe,KICKt).Kr,RXG AIN 2320 2330 2340 2350 2360 LPRINT Fc Kt LPRINT PRINT USING "111111111 1,111 LPRINT USING "111111111 1,111 LPRINT Kr 1 1 meanGdb" , PRINT Fc,KICKt),Kr,RXGAIN +I#,II";FCI,KMINI,MINI +11,1#" ;FCI ,KMIN# ,MIN# TLlH/9442-7 5-42
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~ National ~ Semiconductor 400014 R
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TRADEMARKS Following is the most cu
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II) c ~ ~National ~ ~ Semiconductor
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Table of Contents (Continued) Secti
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Alpha-Numeric Index(continUed) DS36
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Section 1 Local Area Networks IEEE
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~National ~ Semiconductor DP8390C/N
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3.0 Functional Description (Continu
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5.0 Pin Descriptions (Continued) BU
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6.0 Direct Memory Access Control (D
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7.0 Packet Reception (Continued) Re
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8.0 Packet Transmission (Continued)
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10.0 Internal Registers (Continued)
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.----------------------------------
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12.0 Loopback Diagnostics (Continue
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13.0 Bus Arbitration and Timing The
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13.0 Bus Arbitration and Timing (Co
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15.0 Switching Characteristics AC S
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15.0 Switching Characteristics (Con
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AC Timing Test Conditions Input Pul
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2.0 Block Diagram COL CRS PROTOCOL
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4.0 Transmit/Receive Packet Encapsu
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5.0 Pin Descriptions (Continued) BU
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7.0 Packet Reception (Continued) fo
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7.0 Packet Reception (Continued) Er
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9.0 Remote DMA The Remote DMA chann
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11.0 Initialization Procedures (Con
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13.0 Bus Arbitration and Timing The
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-----------------------------------
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15.0 Switching Characteristics AC S
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-----------------------------------
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AC Timing Test Conditions Input Pul
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2.0 Block Diagram TRANSCEIVER CABLE
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PCC Connection Diagram 39.0. 39.0.
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6.0 Absolute Maximum Ratings Recomm
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9.0 Timing and Load Diagrams (Conti
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2.0 Block Diagram COAX CABLE r ____
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~~L ~------------------------------
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6.0 Absolute Maximum Ratings (Note
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-----------------------------------
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-----------------------------------
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I: • • • • • • Interrup
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PAL20LB Decode and DMA Interface Lo
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~ U16/8 R1 R1,R2=4.7k.o. Note: For
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Although Cheapernet is intended for
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The transmitted packet from the SNI
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Truth Table for Various Collision D
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CHEAPERNET APPLICATION WITH THE DP8
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DP8390 Network Interface Controller
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ping between the received address a
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If the current local DMA address ev
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6.2 Dual Port Memory One popular me
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StarLAN With The DP839EB Evaluation
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SUPPORTING DOCUMENTS The following
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Pulse Transformer U3 .----. j " "P>
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ELECTROSTATIC DISCHARGE TEST (ESD)
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Section 2 Contents DP8340INS32440 I
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.. 0 C'I C") en .... z 0 C") GO Go
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~ 'OIl' N CO) (J) Z .... o 'OIl' CO
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Timing Characteristics Oscillator F
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Timing Waveforms (Continued) TA REG
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.. ... ~ ~National ~ ~ Semiconduc
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Detailed Functional Pin Description
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Message Format (Continued) DATA REC
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Timing Characteristics (Notes 2, 6,
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Timing Waveforms (Continued) 4T±(T
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Typical Applications (Continued) +5
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N r--------------------------------
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~ ..,. r---------------------------
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Timing Characteristics (Continued)
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Functional Timing Waveforms (Contin
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Typical Applications (Continued) DA
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C") "Ot "Ot N C") en ...... z C") "
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) r--------------------------------
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Absolute Maximum Ratings (Note 1) I
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(W) r------------------------------
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M r--------------------------------
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MUX~ __________________ The BIPLAN
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U) ,-------------------------------
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~r---------------------------------
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~ .--------------------------------
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An EPROM implementation was selecte
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MASTER MUL TIPLEXING/DE-MUL TIPLEXI
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AN·496 '" 0, '" (U17/ (U23/6) TO 5
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AN-496 t W19 ~ J2-43 I' [; 0 J2-42
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AN·496
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DP8342/DP8343 HIGH SPEED INTERFACE
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2.0 Connection Diagram A13- 12 A12-
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3.0 Pin Descriptions (Continued) Si
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~ ~ 4.0 Electrical Specifications (
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4.0 Electrical Specifications (Cont
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~ ~ 4.0 Electrical Specifications (
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c( '
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~L ______________ ___ ~ ~ 4.0 Elect
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5.0 Instruction Set Overview (Conti
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6.0 Instruction Set Reference (Cont
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~ ,--------------------------------
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~ C') 6.0 Instruction Set Reference
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! 6.0 Instruction Set Reference (Co
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~ ~ 6.0 Instruction Set Reference (
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== ~ 6.0 Instruction Set Reference
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7.0 CPU Registers (Continued) BIT I
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7.0 CPU Registers (Continued) BIRO
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7.0 CPU Registers (Continued) 76543
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7.0 CPU Registers (Continued) BIT D
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7.0 CPU Registers (Continued) BIT D
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8.0 Remote Interface and Arbitratio
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~ ~ HASM state TCU state eLK-OUT RE
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~I tn tn ...._,__'RS A RS, RSC IMEM
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~ 01 CO RASM stat. TCU stat. CLK-OU
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~ ~ I\~"'''' I 'ow = "[OW2-0) , RS
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~ 8l HASM stat. TCU stat. CU- C» b
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.----------------------------------
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10.0 Transceiver (Continued) (a) 32
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10.0 Transceiver (Continued) TABLE
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10.0 Transceiver (Continued) dotted
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10.0 Transceiver (Continued) TABLE
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10.0 Transceiver (Continued) {also
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-----------------------------------
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Decoding Bit Fields with the JRMK I
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Receiver Interrupts/Flags for the D
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****************DA ISR*************
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"Interrupts"-A Powerful Tool of the
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TABLE II. (lCR) Interrupt Mask Bits
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Running the DP8344 with wait states
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» z I U'I Q 01:00 INSTRUCTION ADDR
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WHY EPROM SOFT-LOAD? In a stand-alo
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-----------------------------------
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RESET ~. Timing at Beginning of Ins
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.. I CRYSTAL ~~~.~ I UP TO 64K OP83
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-----------------------------------
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-----------------------------------
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The roll-off frequency, Fro, should
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ceives messages whose first frame a
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RECEIVER INTERRUPT The receiver int
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JMP n LJMP n JMPR Rs JMPI Ptr JRMK
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-----------------------------------
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,----------------------------------
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00044 F90a :J- 226 Z • 227 MOVE A
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l> Z 00074 80BD 2'18 en • 00075 0
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Section 3 ISDN Components
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Introduction To National Semiconduc
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NSC Solutions for Layers 2 and 3 Na
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NSC Solutions: Systems Level Basic
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-----------------------------------
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~National ~ Semiconductor PRELIMINA
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ISDN DEFINITIONS "B" Channel, or DS
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~ '" TE2 UP TO 8 TERMINALS -
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Section 4 Contents INS8250/INS8250-
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m . r------------------------------
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3.0 AC Electrical Characteristics T
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. ID
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5.0 Block Diagram INTERNAL DATA IUS
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6.0 Pin Descriptions (Continued) In
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8.0 Registers (Continued) and 1, on
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8.0 Registers (Continued) 8.5 INTER
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m r--------------------------------
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~ &I) o N m Z ::::: o &I) 'Of' o co
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~ Lt) o N co U) Z ::::: o Lt) '
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4.0 Timing Waveforms (Continued) Re
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6.0 Pin Descriptions (Continued) Re
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8.0 Registers The system programmer
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8.0 Registers (Continued) 8.3 PROGR
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8.0 Registers (Continued) Table II
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9.0 Typical Applications (Continued
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Table of Contents 1.0 ABSOLUTE MAXI
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3.0 AC Electrical Characteristics T
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4.0 Timing Waveforms (Continued) Wr
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,----------------------------------
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5.0 Block Diagram AO A, A2 CSD CSI
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6.0 Pin Descriptions (Continued) tr
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... .I>. '" Bit No. TABLE II. Summa
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8.0 Registers (Continued) 8.3 PROGR
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8.0 Registers (Continued) When the
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'" .j>. 01 PHil This shows the basi
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,----------------------------------
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3. The Rx FIFO will hold 16 bytes r
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NS16550A E-J r-o ..... IRQ4 ICU CPU
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TITLE 550APP.ASM - NS16550A INITIAL
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3.0 Board to Board Communications w
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DIAPPS.ASM Flow Chart l> z • ~ CO
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» z I "" CD RDAI: DISABLE IRTS, SE
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COMPARE: SET UP COMPARE BUffER POIN
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.set iCu imsk,lO *aO • set icu -c
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holdloop: nop # br hold loop # # #*
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# msint: save [rO,rl,r2,r3] # movd
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#3/30/B7••••• D2APPS.ASM
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# #*************************** 1655
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-----------------------------------
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A Comparison of the I NS8250, NS 16
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-----------------------------------
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cessed (see Figure 4), The output o
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AC Electrical Characteristics T A =
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~National ~ Semiconductor \ J micro
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1.0 Absolute Maximum Ratings 2.0 Op
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4.0 AC Electrical Characteristics (
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5.0 Timing Waveforms (Continued) ii
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-----------------------------------
Page 508 and 509: 6.0 Connection Diagrams Dual-In-Lln
Page 510 and 511: 8.0 Block Diagram CPU INTERFACE INT
Page 512 and 513: 9.0 Registers (Continued) Bit three
Page 514 and 515: .----------------------------------
Page 516: -----------------------------------
Page 519 and 520: Section 5 Contents MM74HC942 300 Ba
Page 521 and 522: Absolute Maximum Ratings (Notes 1 &
Page 523 and 524: fj ::z:: ~ :::IE :::IE ~ ,---------
Page 525 and 526: Applications Information (Continued
Page 527 and 528: Absolute Maximum Ratings (Notes 1 &
Page 529 and 530: Description of Pin Functions Pin No
Page 531 and 532: ~ r--------------------------------
Page 533 and 534: ~ r--------------------------------
Page 535 and 536: Electrical Characteristics Unless o
Page 537 and 538: C'I 5 Pin Descriptions (Continued)
Page 539 and 540: IlAV22 RXIN LOCAL OSCILLATOR (L.O.)
Page 541 and 542: Functional Description (Continued)
Page 543 and 544: Functional Description (Continued)
Page 545 and 546: Absolute Maximum Ratings* If Milita
Page 547 and 548: Electrical Characteristics unless o
Page 549 and 550: Functional Description* (Continued)
Page 551 and 552: ,...A212AT RECEIVE FILTER p--------
Page 553 and 554: TABLE III. Remote Digital Loopback
Page 555 and 556: .... ~ ~ U) r----------------------
Page 557: ..... U) z • U) r----------------
Page 561 and 562: .,... U) Z 3020 LPRINT USING" 1111
Page 563 and 564: ~ .... r---------------------------
Page 565 and 566: . II) or- II) Z
Page 567 and 568: ,.. i ~~---------------------------
Page 570 and 571: Section 6 Transmission Line Drivers
Page 572 and 573: ~National ~ Semiconductor Transmiss
Page 574 and 575: ~National ~ Semiconductor OS 1488 Q
Page 576 and 577: J?'A National ~ Semiconductor OS 14
Page 578 and 579: ~National ~ Semiconductor DS26C31 C
Page 580 and 581: ~National ~ Semiconductor DS26C32C
Page 582 and 583: ~National ~ Semiconductor DS34C86 Q
Page 584 and 585: ~National ~ Semiconductor PRELIMINA
Page 586 and 587: ~National ~ Semiconductor DS1692/DS
Page 588 and 589: ~National ~ Semiconductor DS75150 D
Page 590 and 591: ~National ~ Semiconductor DS75176A/
Page 592 and 593: -----------------------------------
Page 594 and 595: ~National ~ Semiconductor DS8922/22
Page 596 and 597: ~National ~ Semiconductor DS96172/~
Page 598 and 599: ~National ~ Semiconductor DS961771
Page 600 and 601: ~National ~ Semiconductor DS9637 AI
Page 602 and 603: • I .----------------------------
Page 604 and 605: Section 7 Physical Dimensions
Page 606 and 607: ~National ~ Semiconductor All dimen
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NS Package N16A N16A(REV E) 0.092 X
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t-------------I:..':::~"':I'-------
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0.11M-0.118 (2.642-2.9971 .. ••
Page 614 and 615:
NOTES
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~National ~ Semiconductor Bookshelf
Page 618 and 619:
RELIABILITY HANDBOOK-1986 Reliabili
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NATIONAL SEMICONDUCTOR CORPORATION
Page 622 and 623:
NATIONAL SEMICONDUCTOR CORPORATION
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~ National ~ Semiconductor
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