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Digital Equipment PDP-8/A, Operator'S Handbook Manual, Page: 83 / 88

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Digital Equipment PDP-8/A Operator'S Handbook Manual Download Page 83

Summary of Contents for PDP-8/A

Page 1: ...EK SA001 0P 002 PDP SfA OPERATOR S HANDBOOK digital equipment corporation maynard massachusetts...

Page 2: ...PDP 8 A OPERATOR S HANDBOOK digital equipment corporation maynard massachusetts...

Page 3: ...ject to change without notice Digital Equipment Corporation assumes no respon sibility for any errors which may appear in this manual Printed in U S A This document was set on DIGITAL s DECset 8000 co...

Page 4: ...ROM 3 12 NHvI8 AA 8K Core Memory 3 15 MM8 AB 16K Core Memory 3 16 DKC8 AA I O Option Board 3 18 K M8 A Extended Option Board 3 22 Semiconductor Memory Power Supply 3 25 Core Memory Power Supply Regula...

Page 5: ...Packaging Outer PDP 8 A Computer Part of MS320 Module Showing R55 Which is Removed for SA Operation PDP 8 A Semiconductor Chassis PDP 8 A Semiconductor Computer Chassis Dimensions SA Chassis H9300 Tra...

Page 6: ...ry Jumper Installation MM8 AB 16K Core Memory Jumper Installation DKC8 AA I O Option Board Switch Settings C Etch Module DKC8 AA Option Board Switch Settings D Etch Module Auto Restart Select Switch S...

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Page 8: ...stem interconnections and site preparations and to detect possible hidden damage incurred during shipping Consequently a number of initial operating tests are also included in this handbook A PDP 8 A...

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Page 10: ...re manuals etc are present as specified on the shipping list inside the carton 8 Save the cartons and packing material to use if the PDP 8fA is later repacked 9 Refer to Chapter 4 for PDP 8fA installa...

Page 11: ...D OPTION IN BOX 9905417 FULL TELESCOPE CAP 9905647 Figure 2 1 8A420 8A620 8A820 Packaging 2 2 FILL VOIDS IN CARTON WITH AIR CAP SD 120 FOAM CORRUGATED SIDE WALL ASS Y 9905641 ust 2 PLASTIC STRAPS 1 IN...

Page 12: ...the carton 2 Place the beveled die cut sheet with foam protector part number 9905675 in front of the computer Figure 2 2 If the Limited Function Panel and a pop panel are on the computer the beveled e...

Page 13: ...DIE CUT SHEETS WITH FOAM BEZEL PROTECTOR 9905675J DIE CUT SHEET WITH FOAM SADDLE 9905667 REGULAR SLOTTED CARTON 9905649 08 1494 Figure 2 2 PDP 8fA Computer Packaging Inner 2 4...

Page 14: ...FULL TELESCOPE CAP 9905662 FOAM PAD 9905663 PACKAGED OPTION IN BOX 9905649 FOAM PAD 9905663 FOAM CORRUGATED SIDE WALL ASS Y 9905661 Figure 2 3 PDP 8fA Computer Packaging Outer 2 5 08 1790...

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Page 16: ...er s Console can be located remotely from the chassis in such a case or when the system does not include a console a blank panel is attached instead Both the panel and the console are latched to the c...

Page 17: ...9300 H9194 12 slot Yes as many as 20 slots can be added 8A620 KK8 E Core BA8 C H9195 20 slot Yes as many as 20 slots can be added 8A800 KK8 A Core H9300 H9194 12 slot No 8A820 KK8 A Core BA8 C H9195 2...

Page 18: ...10 M8341 M8340 I M8330 I M8320 M8316 M8317 MS300 MS310 MS330 M8320 M8316 M8317 MS300 MS310 MS341 MS340 MS330 I I I I 1 MS316 and MS317 are interchangeable in slots 2 and 3 2 Module numbers are related...

Page 19: ...th quad and hex size modules can be inserted the fingers on connectors E and F of the hex size modules do not carry Omnibus signals Some hex modules do not have connectors E and F Figure 3 4 illustrat...

Page 20: ...r fans If you are servicing the power supply you are advised to 1 Turn PDP 8 A off 2 Unplug the power cord 3 Remove metal jewelry that could short the battery heat up and cause burns 9 in l48 26cm Fig...

Page 21: ...18 Regulator Board assembly has been removed to show the connector in which the assembly is inserted The Omnibus connector blocks in the connector HE position are needed to accommodate the E connector...

Page 22: ...assembly DEC Part Number 70 12561 modules are inserted from the front of the unit Two G8018 Regulator Board assemblies are contained in the rear of the chassis the regulator boards are inserted in PC...

Page 23: ...nected to the expander chassis by a ribbon cable One cable connector is inserted into the bottom slot of the basic chassis slot 12 or slot 20 the other connector is inserted into slot 1 of the expande...

Page 24: ...ntral Processor Unit CPU The KK8 A shown in Figure 3 9 is a multilayer hex module M8315 which resides in the top slot of the Omnibus The KK8 A has an Auto Start feature which is used to start the comp...

Page 25: ...at address 4000 Start at address 2000 Start at address looO Start at address 0400 Start at address 0200 CPU Auto Start Disabled OFF A REVISION LETT __ON UNDERSIDE BOARD S1 1 S1 8 Starting address 000...

Page 26: ...ions Option MS8 AA MS8 AB MS8 AD Memory Size lK 2K 4K Module Number M8311 YA M8311 YB M8311 YD If you are using a 4K RAM in Field 0 set switches SI 1 through SI 6 and SI 10 ON and turn SI 7 8 and 9 OF...

Page 27: ...ress in this RAM ON ON 0000 ON OFF 2000 OFF ON 4000 OFF OFF 6000 SI 6 ON for 4K Memory M8311 YD OFF for 1K or 2K SI 7 OFF SI 8 ON for 2K Memory M8311 YB OFF for lK or 4K SI 9 ON for lK Memory M8311 YA...

Page 28: ...ways location 0000 of the selected memory field I f you are using a 4K ROM in Field 0 with no connections to RAM set the following switches ON SI 1 through SI 8 S3 1 through S3 8 S5 1 through S5 8 S7...

Page 29: ...ettings S2 1 S2 S S2 5 Memory Size 82 2 and 4 82 3 6 and 7 S3 1 to S3 8 84 1 2 3 4 and 6 84 5 84 7 84 8 85 1 to S5 8 86 1 and 86 2 86 3 4 5 6 7 and 8 87 1 to 87 8 88 1 to 88 8 89 1 to 89 8 OFF ON ON O...

Page 30: ...own in Figure 3 12 is a hex module G649 with an H219 A Stack Assembly that contains 8K of core memory If you are using core memory in Fields 0 and 1 install Wl 3 and Wl 2 and remove W2 4 and W3 4 Figu...

Page 31: ...3 4 5 MMS AB 16K Core Memory The MMS AB shown in Figure 3 13 is a hex module 0650 with an H219 B Stack Assembly that contains 16K of core memory If the MMS AB is installed in Fields 0 through 3 jump...

Page 32: ...7388 1 Figure 3 13 MMS AB 16K Core Memory 3 17...

Page 33: ...owing appears near the lower right corner when viewing side 2 Option Board 1 Side 2 M8316 50109000 The letter 0 indicates the 0 etch revision The information in this section is not totally applicable...

Page 34: ...rface for Teletype VT50 or other compatible serial line unit 2_ Real Time Clock Crystal controlled at 100 Hz 3_ General Purpose Parallel I O 12 bit I O for user s device or another POP 8 A NOTE The Ge...

Page 35: ...F position Sl 10 is a spare For other operation set switches as shown in Tables 3 8 and 3 9 Table 3 8 DKC8 AA I O Option Board Switch Settings C Etch Module Switch Function Sl 1 2and3 Baud Rate as sho...

Page 36: ...FF 2000 OFF ON OFF ON 2400 OFF ON OFF OFF 3600 OFF OFF ON ON 4800 OFF OFF ON OFF 7200 OFF OFF OFF ON 9600 OFF OFF OFF OFF 19 2K ON Real Time Clock enabled OFF Read Time Clock disabled ON Test Switch a...

Page 37: ...only used I O loaders Memory Extension and Timeshare Control If you are using paper tape under control of the boot strap switches no Auto Restart and timeshare enabled set the following switches ON SI...

Page 38: ...i e S2 2 is OFF S2 3 is OFF and S2 4 is OFF Restart Address 0 200 2000 4200 S2 6 ON OFF OFF ON ON Table 3 10 Auto Restart Select Switch Settings S2 2 S2 3 OFF OFF OFF ON ON OFF ON ON Table 3 11 Boots...

Page 39: ...strap Select Switch Settings for ROMs Labeled 156A2 and 157A2 S2 7 S2 8 SI 1 SI 2 SI 3 ON ON ON OFF ON Table 3 14 Bootstrap Auto Restart Switch Settings Start Switch or Activating Signal BOOT Key BOOT...

Page 40: ...supply has battery backup for power failures The machine will be totally supported for approximately 30 40 seconds after an ac line failure nun n 5 v ADJUST CAUTION This area of the G8016 is normally...

Page 41: ...SLAVE switch is mounted on the printed circuit board that includes the ON OFF PANEL LOCK and BOOT switches This board is attached to the rear of the Limited Function Panel remove the panel to gain acc...

Page 42: ...I MASTER SLAVE SWITCH Figure3 18 8A MasterjSlave S wItch 3 27 08 1787...

Page 43: ...POWER OK LIGHT LIT WHEN ALL DC VOLTAGES ARE PRESENT ADJUSTMENT TOOL MUST ENTER HERE FOR 20 VOLT ADJUSTMENT 5 V ADJUSTMENT 5 V FUSE POWER POWER 20 V FUSE FAIL 4A 2 5 A FAIL UP DOWN Figure 3 19 Core Mem...

Page 44: ...ure 3 20 The Limited Function Panel has three external switches and three indicator lights as defined below The MAS TER SLAVE switch is mounted in the rear of the panel for 8A computers 7288 3 Figure...

Page 45: ...e systems having a Programmer s Console the PANEL LOCK switch disables the following switches HLTISS E NEXT E THIS D THIS D NEXT LA LXA INIT BOOT and RUN The down position activates the Programmer s C...

Page 46: ...before applying power This time should be increased to 1 hour or longer when the difference between storage or shipping temperature and the operating ambient temperature exceeds 30 F 17 C Install the...

Page 47: ...8 Turn the power OFF before checking the MASTER SLAVE switch This switch should be in the MASTER to the right position Then turn the power ON If the condition still exists refer to the basic mainte n...

Page 48: ...ructions are correct switch power OFF and check all of the module switch settings All mem ory contents are lost when power is switched OFF and the routines must be reloaded If the routine is not enter...

Page 49: ...similar terminal NOTE Ensure that the Teletype is set to LINE for routines 2 and 3 The following line will print out while this routine is running Characters mayor may not be printed after the letter...

Page 50: ...the ISZ instruction The program should halt at location 00207 ADDRS should read 00210 with the AC cleared AC 0000 To read the AC depress AC and then DISP 0200 0201 0202 0203 0204 0205 0206 0207 7300...

Page 51: ...t twice 0200 0201 0202 0203 0204 0205 0206 0207 0210 0211 0212 0213 0214 5210 7402 5206 7402 5212 7402 5204 7402 5202 7402 2300 5200 7402 Jump 210 Error halt Jump 206 Error halt Jump 212 Error halt Ju...

Page 52: ...scribed in the next few paragraphs The second method consists of using the bootstrap option if there is 4K or more of read write memory and the KMS A Extended Option Board MS317 is in the computer If...

Page 53: ...t the printed arrow on the tape points toward you and the single row of data holes at the beginning of the tape is over the read head Figure 6 1 o 00 00 0 0 0 0 0 o 00 00 0 0 00 0 0 0 0 0 0 0 0 0 0 00...

Page 54: ...o the trailing single row of data holes press the HLTISS key The reader should stop reading tape The binary loader should now be in memory 6 4 LOADING BINARY FORMATTED PAPER TAPES 1 Press in order 777...

Page 55: ...hould go out when the first bit of trailer row of single data holes at the end of tape is over the read head The reader should automatically stop Move the reader lever to STOP or FREE 8 Press AC then...

Page 56: ...ine has a MRS Read Only Memory you should consult your local Field Service representative before attempting to run diagnostics 7 1 CENTRAL PROCESSOR UNIT CPU TEST The CPU test is a good overall test o...

Page 57: ...AC then DISP DISP indicators should equal 0000 4K Tape must be stopped when trailer is reached Press HLTISS 5 Set up location 0021 in the program as follows a Press 0021 then LA b Press 4000 then D T...

Page 58: ...0156 2 Place tape labeled 1 4K MS8 A MOS Memory Test MAINDEC 08 DJMSA A PM in the pa per tape reader 3 Run RIM loader using one of the following 4K Press 0000 then LXA Press 7756 then LA 4K Press 0156...

Page 59: ...table to support the Programmer s Console or cables to extend the panel cables should be available I Turn PDP 8 A power OFF Without altering the M8316 switch settings remove the M8316 from the PDP 8 A...

Page 60: ...6K Enter 6017 5 Start program as follows a Press 0000 LSR and LXA b Press 0200 INIT and RUN 6 Allow program to run for 5 minutes There should be no halts while program is still running Press 0400 then...

Page 61: ...sion Remove the Termi Point jumpers from J3 now connect J3 F to J3 J J3 E to J3 M Start program as described in step 5 and allow program to run for 5 minutes no halts Then Press 0400 and LSR Program w...

Page 62: ...on Press 0001 and LSR Press RUN WARNING Do not depress INIT The program should run for 30 seconds 0 5 seconds and then halt 12 Perform this step regardless of memory size Turn PDP 8 A power OFF For a...

Page 63: ...ograms is needed 1 Turn OFF power to the PDP S A and place the MS317 on the W9S7 Quad Extender The MS317 must be plugged into slot 2 or 3 of the Omnibus 2 Write on paper the position of all switches o...

Page 64: ...strap is correct NOTE There is no point in checking a bootstrap unless your PDP 8 A is equipped with the option e g unless your PDP 8 A is equipped with an RK8 E do not try to test the RK8 E bootstrap...

Page 65: ...le 8 2 then press in order LSR 4400 LA INIT then RUN e Program will halt with ADDRS 04462 if bootstrap is correct SR 0000 0004 0001 0002 0003 SR 0000 0004 0003 0001 0002 11 Make sure the BATTERY CHARG...

Page 66: ...G EXTENDED MEMORIES A good test of extended memories the CPU and the memory extension control may be made by running the lK to 32K Random Memory Reference Instruction Exerciser test This test may also...

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Page 68: ...on Board MB317 Switch settings are in Chapter 3 Tables 3 10 through 3 14 The battery requires a minimum of 15 hours of charging after a complete dis charge The light normally flashes on momentarily af...

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Page 70: ...A I APPENDIX A INSTRUCTION SUMMARY...

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Page 72: ...One Both SPA and SNA ilnd SZl 2 ClA 3 OSR HlT Group 2 Operate Instruction Bit Assignments COMBINED OPERATE MICROINSTRUCTIONS 1 CYCLE CIA 7041 complement and increment AC lAS 7604 load AC with switch...

Page 73: ...I 6045 Skip if transmit or receive flag is set and if interrupt enable is set TLS 6046 Combined TCF and TPC commands GENERAL PURPOSE PARALLEL I O INSTRUCTION 1 Cycle DBST 6570 Skip on Data Accepted cl...

Page 74: ...response to this lOT Load the Data Field register with the program selected number N N 0 7 Load the Instruction Buffer with the program selected number N N 0 7 and inhibit program interrupts untii the...

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Page 76: ...ation Introduction to Programming 1973 Edtion Provides the experienced and inexperienced programmer the information necessary to program the PDP 8fA Miniprocessor PDP 8 A User s Manual EK 8A002 MM 001...

Page 77: ...Instruction 1 32K Random Memory Reference Instructions Exerciser Instructions 2 32K Processor Exerciser 2 32K Processor Exerciser Instructions IK and 2K DKC8 AA Option Software Kit ZF207 RB MAINDEC OS...

Page 78: ...08 DHMRE PB MAINDEC 08 DHM RE D MR8 A ROM Compare Test MR8 A ROM Compare Test Instructions MR8 SA PROM Loader Program MR8 SA PROM Loader Program Instructions MR8 FB PROM Compare Test MR8 FB PROM Comp...

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Page 80: ...ty in connection with the shipment of the equipment If DIGITAL determines that the equipment is not defective within the terms of this warranty the buyer shall pay DIGITAL the cost of all transportati...

Page 81: ...platz 2 West Germany Tel 35 031 PARIS Equipment Digital S A R L Depot Repair Department 2 Place Gustave Eiffel CIDEX L225 108 Rude d Arion 94 533 Rungis France Tel 01 6877 2333 C 2 READING Digital Equ...

Page 82: ...DB8 E Omnibus Loading Module Number 5V 6 4 A 7 0A 8 2 A 8 9 A 8 8 A M8315 5 0A 1 60A 1 70 A M8311 YA 1 4 A M8311 YB 2 4 A M8311 YD 3 2 A M8312 YA 2 15 A M8312 YB 3 10 A M8312 YD 5 00 A M8349 3 8 A M83...

Page 83: ...S V 15V 20 V DRS E MS63 2 25 A DPS E MS39 MS66 I S0A 0 05 A 0 105 A KLS JA MS655 1 0 A TAS E MS331 2 S0A Power Available 5 V 15 V 15 V GS016 Power Supply 20A 0 75 A 0 75 A GSOlS Power Supply 25 A 2 0A...

Page 84: ...__RE L __________ I I J O 24 VAC ELECTRIC I CONNECTION EARTH GROUND NO LOAD THESE 1 CURRENT FOR SAFETY PURPOSES PREMADE I CONNECTIONS I ONLY I S V ENTRANCE I I I GREEN WIRE OF PDP 8 A POWER CORD CONNE...

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Page 86: ...is it complete accurate well organized well written etc Is it easy to use What features are most useful What faults do you find with the manual Does this manual satisfy the need you think it was inte...

Page 87: ...INESS REPLY MAIL NO POSTAGE STAMP NECESSARY IF MAILED IN THE UNITED STATES Postage will be paid by Digital Equipment Corporation Technical Documentation Department 146 Main St Maynard Massachusetts 01...

Page 88: ...Digital Equipment Corporation Maynard Massachusetts printed in U S A...

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