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#3/30/B7••••• D2APPS.ASM ••••••••• ADAPTED ORIGINALLY FROM DIRON56K.ASM # #THIS PROGRAM RUNS USING 2 DB32000 BOARDS WITH 16550As ENABLED AT ADDRESS #OdOOOOO WIRE-WRAPPED ON THE BOARDS. THIS SOFTWARE TRANSMITS THE DATA FF #THROUGH 00 REPEATEDLY TO THE REMOTE UART AND EXPECTS TO REPEATEDLY RECEIVE #THE DATA 00 THROUGH FF FROM THE REMOTE UART. IT SHOULD BE RUN IN CONJUNCTION #WITH THE PROGRAM DIAPPS.ASM RUNNING ON THE OTHER DB32000 BOARD. THE TX PIN OF #THIS 16550A SHOULD CONNECT TO THE RX PIN OF THE 16550A ON THE OTHER BOARD AND #VICE VERSA. ALSO, THE CTS PIN OF THIS 16550A SHOULD BE CONNECTED TO THE RTS PIN #OF THE 16550A ON THE OTHER BOARD AND VICE VERSA. THIS WILL ENABLE THE # APPROPRIATE HANDSHAKES TO OCCUR. # #TO RUN THIS PROGRAM YOU MUST: # # # # # # # # 1. CONNECT THE RX & TX OF THE 2 16550As ON THE 2 DB32000 BOARDS 2. CONNECT THE CTS & RTS OF THE 2 16550As ON THE 2 DB32000 BOARDS 3. DOWNLOAD D2APPS.EXE TO THIS BOARD VIA THE GNX DEBUGGER [REV 1.02] 4. DOWNLOAD D1APPS.EXE TO OTHER BOARD VIA THE GNX DEBUGGER [REV 1.02] 5. START D1APPS.EXE RUNNING ON THE OTHER DB32000 BOARD 6. START D2APPS.EXE RUNNING ON THIS DB32000 BOARD #PROGRAM DETAILS: # # # ISR contains the TX SERVICE ROUTINE # # TX FIFO 1S CLEARED before a transmlsslon # # DATA SENT FF ------ 00 # # DATA RECEIVED and COMPARED 00 ------ FF # # BAUDRATE 12Bk WITH A B.O MHZ XTAL INPUT TO THE 16550A # #*********************** ESTABLISH 16550A REGISTER ADDRESSES ******************** .glob1 .set rxd, .set txd, .set ier, .set iir, .set fer, .set ler, • set mer, .set lsr, .set msreg, .set ser, lsr OxOdOOOOO OxOdOOOOO OxOd00004 OxOdOOOOB OxOdOOOOB OxOdOOOOe OxOd00010 OxOd00014 OxOd0001B OxOdOOOle # # #Equate registers to their addresses # # # # # # # # # # #******************* ESTABLISH ADDRESSES FOR THE 32202 (ICU) ******************* .set aO,4 .set ieu hvet,O .set ieu-svet,1 *aO .set leu-e1gt,2 *aO .set ieu-tp1,4 *aO .set 1eu-ipnd,6 *aO .set ieu-1srv,B *aO .set 1eu-imsk,10 *aO .set ieu=esre,12 *aO # #Estab11sh address a11gnment #between CPU and ICU #ICU reg1ster addresses # # # # # # # . l> z ~ CD .... TLiC/9313-20 4-79
.set icu fprt,14 *aO .set icu-mctl,16 *aO .set lCu-c1ptr,18 *aO .set 1cu-pdat,19 *aO .set iCU-1PS,20 *aO .set icu-pdir,21 *aO .set 1Cu-cctl,22 *aO .set 1CU:C1ctl,23 *aO .set 1cu_addr,OxftfeOO t************************* STATIC BASE .set irl mod, 17*4 • set sbut, Oxle .set rbuf, Ox41e .set cbuf, Ox61e .set intabl., Ox81e #********************** SET UP DISPATCH start:: b1cpsrw $(OxlOO) movd $OxOc,rO movd $Ox055555555,rl addr 1ntable(sb),r2 movd $OxOc,r3 svc sprd 1ntbase,r2 mova 1srent,irl_mod(r2) t * i • I i t i # tFirst ICU register addre~s t • • tDispatch table offset for IRl entry 'sbuf = area used to tstore data to be transmitted, rbuf tarea used to store rece1ved data, tcbuf = area used to store compare .buffer, 1ntable = base po1nter to the iinterrupt table # TABLE FOR THE 32032 ******************** STARTING LOCATIONS ********************** •#Clear 1ntr's tset for monitor svc to move 1ntbase ,from ROM to ram becauae you have tto change the address for the .interrupt service routine. tActual svc for move tPut base addr of 1ntbase in r2 IPut offset of isr into 1st location tof dispatch table t #w******************** LOAD TRANSMITTER BUFFER (FF to 00) ********************** t senddat: addr sbuf(sb),rO tRO contains str1ng buffer ptr. movd $O,rl IRl conta1ns offset movb $OxOtt,r2 Unit data reg. sbufloop: movb r2,O(rO)[rl:b] iLoad char. to string buffer addqw l,rl tIncrQment offset ptr. subb $l,r2 IIncrement data cmpw r.1,$256 .Check for 256 chars. loaded bne sbufloop #Jump back 1f not done I t*********************** LOAD COMPARISON BUFFER (00 TO FF) ********************* i compdat: addr cbuf (sb) , rO tRO conta1ns pointer movd $O,rl tRl contains offset movb $O,r2 Unit data reg. Cbufloop: movb r2,O(rO)[rl:b] tLoad char. to compare buffer addqw l,rl IIncrement ptr. offset addqw l,r2 IDecrement data cmpw r.1,$256 'Check for 256 chars. loaded bne Cbufloop tJump back if not done i t*************** SET UP INTERRUPT SERVICE ROUTINE PARAMETERS ******************* movd $16,blk16cnt I iInitialize 16 byte block counter TL/C/9313-21 4-80
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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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) 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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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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,----------------------------------
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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
Page 434 and 435: 8.0 Registers The system programmer
Page 436 and 437: 8.0 Registers (Continued) 8.3 PROGR
Page 438 and 439: 8.0 Registers (Continued) Table II
Page 440 and 441: 9.0 Typical Applications (Continued
Page 442 and 443: Table of Contents 1.0 ABSOLUTE MAXI
Page 444 and 445: 3.0 AC Electrical Characteristics T
Page 446 and 447: 4.0 Timing Waveforms (Continued) Wr
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Page 450 and 451: 5.0 Block Diagram AO A, A2 CSD CSI
Page 452 and 453: 6.0 Pin Descriptions (Continued) tr
Page 454 and 455: ... .I>. '" Bit No. TABLE II. Summa
Page 456 and 457: 8.0 Registers (Continued) 8.3 PROGR
Page 458 and 459: 8.0 Registers (Continued) When the
Page 460 and 461: '" .j>. 01 PHil This shows the basi
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Page 464 and 465: 3. The Rx FIFO will hold 16 bytes r
Page 466 and 467: NS16550A E-J r-o ..... IRQ4 ICU CPU
Page 468 and 469: TITLE 550APP.ASM - NS16550A INITIAL
Page 470 and 471: 3.0 Board to Board Communications w
Page 472 and 473: DIAPPS.ASM Flow Chart l> z • ~ CO
Page 474 and 475: » z I "" CD RDAI: DISABLE IRTS, SE
Page 476 and 477: COMPARE: SET UP COMPARE BUffER POIN
Page 478 and 479: .set iCu imsk,lO *aO • set icu -c
Page 480 and 481: holdloop: nop # br hold loop # # #*
Page 482 and 483: # msint: save [rO,rl,r2,r3] # movd
Page 486 and 487: # #*************************** 1655
Page 488 and 489: -----------------------------------
Page 490 and 491: A Comparison of the I NS8250, NS 16
Page 492 and 493: -----------------------------------
Page 494 and 495: cessed (see Figure 4), The output o
Page 496 and 497: AC Electrical Characteristics T A =
Page 498 and 499: ~National ~ Semiconductor \ J micro
Page 500 and 501: 1.0 Absolute Maximum Ratings 2.0 Op
Page 502 and 503: 4.0 AC Electrical Characteristics (
Page 504 and 505: 5.0 Timing Waveforms (Continued) ii
Page 506 and 507: -----------------------------------
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
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Page 533 and 534: ~ r--------------------------------
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Electrical Characteristics Unless o
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C'I 5 Pin Descriptions (Continued)
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IlAV22 RXIN LOCAL OSCILLATOR (L.O.)
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Functional Description (Continued)
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Functional Description (Continued)
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Absolute Maximum Ratings* If Milita
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Electrical Characteristics unless o
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Functional Description* (Continued)
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,...A212AT RECEIVE FILTER p--------
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TABLE III. Remote Digital Loopback
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.... ~ ~ U) r----------------------
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..... U) z • U) r----------------
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~ .... ,---------------------------
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.,... U) Z 3020 LPRINT USING" 1111
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~ .... r---------------------------
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. II) or- II) Z
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,.. i ~~---------------------------
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Section 6 Transmission Line Drivers
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~National ~ Semiconductor Transmiss
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~National ~ Semiconductor OS 1488 Q
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J?'A National ~ Semiconductor OS 14
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~National ~ Semiconductor DS26C31 C
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~National ~ Semiconductor DS26C32C
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~National ~ Semiconductor DS34C86 Q
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~National ~ Semiconductor PRELIMINA
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~National ~ Semiconductor DS1692/DS
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~National ~ Semiconductor DS75150 D
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~National ~ Semiconductor DS75176A/
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-----------------------------------
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~National ~ Semiconductor DS8922/22
Page 596 and 597:
~National ~ Semiconductor DS96172/~
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~National ~ Semiconductor DS961771
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~National ~ Semiconductor DS9637 AI
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• I .----------------------------
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Section 7 Physical Dimensions
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~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 .. ••
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NOTES
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~National ~ Semiconductor Bookshelf
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RELIABILITY HANDBOOK-1986 Reliabili
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NATIONAL SEMICONDUCTOR CORPORATION
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NATIONAL SEMICONDUCTOR CORPORATION
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~ National ~ Semiconductor
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