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Fc Kt Kr meanGdb 7500 0.750 -22.87 II Rline Xli ne GdB NONLOADED LINES. 2W & 4W TERMINATIONS Q 1KHz 1 400 -550 -29.4 2 450 -500 -31.6 3 450 -700 -27.7 4 650 -600 -28.9 5 650 -750 -25.2 6 850 -500 -22.3 7 850 -700 -22.2 8 1050 -300 -18.4 9 1050 -600 -19.6 10 1100 -400 -18.6 MEDIAN LOADED & NONLOADED LINES Q 2 KHz 11 400 -525 -26.3 12 450 -500 -28.7 MEDIAN LOADED AND NONLOADED LINES Q2.5 KHZ 13 300 -500 -22.7 14 350 -450 -23.7 HYBRID DESIGN VALUES NOTE: -9.50 dBm OUTPUT UNATTAINABLE FOR Vt=0.710 Vrms Output levels: 0.775 Vrms at Ra and R4. -9.50 dBm to 600 ohm load. Net receive path gain: +4.00dB Ra Rb CO(uF) Kr R4 R5 C I (uF) 9.100+02 4.460+07 0.018 1.558 4.650+03 3.910+03 0.010 NOTE: INSERT 0.76 dB GAIN BETWEEN TXO AND Ra.R4 For absolute TX echo level (dBm) at RXIN. add +3.85 dB to Gdb figures. Mean TX echo for 14 impedance values is -19.0dBm. TL/H/9442-1S » Z I U1 ... U1 • 5-51
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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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15.0 Switching Characteristics AC S
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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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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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Absolute Maximum Ratings (Note 1) I
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(W) 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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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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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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RESET ~. Timing at Beginning of Ins
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.. I CRYSTAL ~~~.~ I UP TO 64K OP83
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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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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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~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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~ &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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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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A Comparison of the I NS8250, NS 16
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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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-----------------------------------
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6.0 Connection Diagrams Dual-In-Lln
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8.0 Block Diagram CPU INTERFACE INT
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9.0 Registers (Continued) Bit three
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.----------------------------------
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-----------------------------------
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
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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 and 558: ..... U) z • U) r----------------
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Page 561 and 562: .,... U) Z 3020 LPRINT USING" 1111
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Page 565 and 566: . II) or- II) Z
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Page 571 and 572: Section 6 Contents Transmission Lin
Page 573 and 574: Differential Data Transmission (Con
Page 575 and 576: ~National ~ Semiconductor DS14C88/D
Page 577 and 578: ~National ~ Semiconductor DS26LS31
Page 579 and 580: ~National ~ Semiconductor DS26LS32C
Page 581 and 582: ~National ~ Semiconductor OS3486 Qu
Page 583 and 584: ~ r--------------------------------
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Page 587 and 588: co CJ) (D (f) tJ) Q - CJ) """ (D (f
Page 589 and 590: .... in ~ ~Nat1onal c ~ Semiconduct
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Page 593 and 594: ~National ~ Semiconductor DS8921/DS
Page 595 and 596: ~National ~ Semiconductor DS8924 Qu
Page 597 and 598: ..... .,... II) co en « :::l.. ...
Page 599 and 600: ~National ~ Semiconductor DS9636A/,
Page 601 and 602: co r-------------------------------
Page 603 and 604: C") .., ~ ~National .., ~ ~ Semicon
Page 605 and 606: Section 7 Contents Physical Dimensi
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Page 609 and 610: II) c o 'iii c Q) E C «i u 'iii .c
Page 611 and 612: III c::: o "en c::: CI) E is (ij u
Page 613 and 614: NOTES
Page 615 and 616: NOTES
Page 617 and 618: INTUITIVE IC OP AMPS-1984 Thomas M.
Page 619 and 620:
NOTES
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NATIONAL SEMICONDUCTOR CORPORATION
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NATIONAL SEMICONDUCTOR CORPORATION
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