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5.12 Shared Buffer Request Byte

This table describes the bits of the shared buffer request bytes. This

byte is updated by the 4684 microprocessor after each access of the

message buffer.

+------------------------------------------------------------------------+

¦ Table 5-6. Shared Buffer Request Byte ¦

+------------------------------------------------------------------------¦

¦ Bit ¦ Definition ¦

+-------+----------------------------------------------------------------¦

¦ Bit 7 ¦ 1 = Diagnostic self-test request. ¦

+-------+----------------------------------------------------------------¦

¦ Bit 6 ¦ 1 = Read and process the "timer function" bytes. ¦

+-------+----------------------------------------------------------------¦

¦ Bit 5 ¦ 1 = Read and process the "loop mode" byte. ¦

+-------+----------------------------------------------------------------¦

¦ Bit 4 ¦ 1 = Process the "transmit message(s)" held in the shared ¦

¦ ¦ buffer. ¦

+-------+----------------------------------------------------------------¦

¦ Bit 3 ¦ 1 = Read and process the "timer/transmit function" bytes. ¦

+-------+----------------------------------------------------------------¦

¦ Bit 2 ¦ 1 = Internal 8051 storage dump request. ¦

+-------+----------------------------------------------------------------¦

¦ Bit 1 ¦ 1 = Read EC level request. ¦

+-------+----------------------------------------------------------------¦

¦ Bit 0 ¦ 1 = Read and process the "loop address" bytes. ¦

+------------------------------------------------------------------------+

4684 Store Loop Adapter/A

Shared Buffer Request Byte

¦ Copyright IBM Corp. 1991

5.12 - 1

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Summary of Contents for 4684 Store Loop Adapter/A

Page 1: ... Title Page IBM 4684 Store Loop Adapter A Installation Testing Problem Determination and Technical Reference Document Number SD21 0045 00 4684 Store Loop Adapter A Title Page Copyright IBM Corp 1991 TITLE 1 ...

Page 2: ...r IBM 4684 Store Loop Adapter A Installation Testing Problem Determination and Technical Reference Document Number SD21 0045 00 Part Number 92F5869 4684 Store Loop Adapter A Book Cover Copyright IBM Corp 1991 COVER 1 ...

Page 3: ... document The furnishing of this document does not give you any license to these patents You can send license inquiries in writing to the IBM Director of Commercial Relations IBM Corporation Purchase NY 10577 Publications are not stocked at the address given below Requests for IBM publications should be made to your IBM representative or to the IBM branch office serving your locality A form for re...

Page 4: ...l interference in which case the user will be required to correct the interference at his own expense Properly shielded and grounded cables and connectors must be used in order to meet FCC emission limits IBM is not responsible for any radio or television interference caused by using other than recommended cables and connectors or by unauthorized changes or modifications to this equipment Unauthor...

Page 5: ...d you connect to this product items not supplied by IBM United Kingdom Limited you must ensure that you comply with mandatory telecommunications safety requirements You may do this either by choosing products which also are approved as complying to BS 6301 or British Telecom Technical Guide 26 or by the use of approved safety barriers Please consult the local office of your public telecommunicatio...

Page 6: ...e conformité aux normes du ministère des Communications du Canada Cet équipement ne dépasse pas les limites de Classe A d émission de bruits radioélectriques pour les appareils numériques telles que prescrites par le Règlement sur le brouillage radioélectrique établi par le ministère des Communications du Canada L exploitation faite en milieu résidentiel peut entraîner le brouillage des réceptions...

Page 7: ... on accessible metal parts of the equipment If you are unsure of the receptacle wiring have a qualified electrician check the receptacle prior to connecting any equipment or working on any equipment connected to it This product is equipped with a 3 wire power cord and plug for the user s safety Use this power cord in conjunction with a properly grounded electrical outlet to avoid electrical shock ...

Page 8: ...Loop Adapter Cable Diagram 5 2 Adapter Loop Relay Diagram 5 3 Store Loop Adapter Block Diagram 5 4 Store Loop Adapter Storage Map 5 5 POST Test Store Loop Adapter Errors 5 6 Adapter Failure Status Bytes 5 7 Failure Status Byte 0 5 7 1 Store Loop Adapter Error Code 5 8 Failure Status Byte 1 5 8 1 Store Loop Adapter Microprocessor Status Codes 5 9 Failure Status Bytes 2 and 3 5 9 1 Shared Buffer Lat...

Page 9: ...includes problem determination procedures and technical reference information Use this manual with the 4684 Reference Diskette for your IBM 4684 Point of Sale Terminal The reference diskette must be a version 3 0 or higher in order to support an IBM 4684 Store Loop Adapter A Save this manual for future use after installing an IBM 4684 Store Loop Adapter A Subtopics 1 1 Related Publications 4684 St...

Page 10: ...es Guide SC30 3521 IBM 4680 Store System Problem Determination Guide SY27 0316 IBM 4683 4684 Point of Sale Terminal Maintenance Manual SY27 0295 IBM 4684 Point of Sale Terminal Problem Determination Guide SY27 0314 IBM 4684 Point of Sale Terminal Installation Guide SA27 3837 4684 Store Loop Adapter A Related Publications Copyright IBM Corp 1991 1 1 1 ...

Page 11: ...fore you begin to install this adapter be sure that you have a backup copy of the IBM 4684 Point of Sale Terminal Reference Diskette version 3 0 or higher Refer to the IBM 4684 Point of Sale Terminal Installation Guide or to the IBM 4684 Point of Sale Terminal Problem Determination Guide for instructions on creating the backup copy of the reference diskette Subtopics 2 1 Installation Steps 4684 St...

Page 12: ... to install OR Do you have a Feature Card and Memory Expansion Adapter 2 from Box 1D to install Note Either the Feature Card Expansion or the Feature Card and Memory Expansion Adapter must be present to allow for installation of the IBM 4684 Store Loop Adapter A option NO already installed Continue to step 6 YES Continue to step 5 5 Install the Feature Card Expansion from Box 1C or the Feature Car...

Page 13: ...t approximately 2 5 cm 1 in from the rear and sliding it on Turn the thumbscrew 1 to secure the cover Continue to step 11 PICTURE 5 PICTURE 6 PICTURE 7 PICTURE 8 11 When you have finished installing all devices options and cables a Connect all previously disconnected cables to the system unit b Connect the store loop adapter cables to the proper store loop adapters Note To run the adapter tests yo...

Page 14: ... This completes the installation of the IBM 4684 Store Loop Adapter A Continue with Chapter 3 to ensure that the adapter is configured and operating correctly 4684 Store Loop Adapter A Installation Steps Copyright IBM Corp 1991 2 1 3 ...

Page 15: ...kette Version 3 0 or higher To run the adapter tests you must have the store loop adapter CABLE connected to the adapter BUT disconnected from the store loop receptacle DANGER Never connect or disconnect a cable during an electrical storm Subtopics 3 1 Configuration and Verification Tests 4684 Store Loop Adapter A Chapter 3 Configuring and Testing the Store Loop Adapter Copyright IBM Corp 1991 3 0...

Page 16: ...ion Do you want to activate the new configuration now is displayed answer YES and follow the instructions on the screen PICTURE 9 4 When Menu M1 is displayed select Start Tests 5 When Menu T1 is displayed select Verification Tests The verification tests check the memory the display the IBM 4684 Store Loop Adapter A and other components of the system If an error occurs make note of any components t...

Page 17: ...elf test or while running tests When using the chapter note that x in an error message can be any number The index lists the component that is most likely to be failing first Subtopics 4 1 Running Tests 4 2 Failures During the Power On Self Test POST 4 3 Failures During Diskette Testing 4684 Store Loop Adapter A Chapter 4 Problem Determination Procedures Copyright IBM Corp 1991 4 0 1 ...

Page 18: ... store loop through a store loop adapter you must have the store loop adapter CABLE connected to the adapter BUT disconnected from the store loop receptacle To run tests on your 4684 terminal see Running Tests in Chapter 1 of the IBM 4684 Point of Sale Terminal Problem Determination Guide Always replace an IBM 4684 Store Loop Adapter A in the same system unit slot from which a store loop adapter w...

Page 19: ...re Symptom Failing Component C0000 System unit or an option card C4000 System unit or an option card C8000 System unit or an option card CC000 System unit or an option card D0000 System unit or an option card D4000 System unit or an option card Subtopics 4 2 1 Store Loop Adapter Failure 4684 Store Loop Adapter A Failures During the Power On Self Test POST Copyright IBM Corp 1991 4 2 1 ...

Page 20: ...oop Adapter A test and follow the instructions on the screen to isolate the failure xx in an error message can be any number Symptom Failing Component 62xx Store loop adapter 4684 Store Loop Adapter A Store Loop Adapter Failure Copyright IBM Corp 1991 4 2 1 1 ...

Page 21: ...rom the backup copy of the IBM 4684 Point of Sale Terminal Reference Diskette Version 3 0 or higher to isolate the failure Subtopics 4 3 1 Store Loop Diagnostic Errors 4684 Store Loop Adapter A Failures During Diskette Testing Copyright IBM Corp 1991 4 3 1 ...

Page 22: ... Loop Diagnostic Errors Symptom Failing Component 6210 Store loop adapter 6270 Store loop adapter cable or store loop adapter 4684 Store Loop Adapter A Store Loop Diagnostic Errors Copyright IBM Corp 1991 4 3 1 1 ...

Page 23: ...oop Adapter Errors 5 6 Adapter Failure Status Bytes 5 7 Failure Status Byte 0 5 8 Failure Status Byte 1 5 9 Failure Status Bytes 2 and 3 5 10 Failure Status Bytes 4 and 5 5 11 Store Loop Adapter System Status Byte 5 12 Shared Buffer Request Byte 5 13 Shared Buffer Status Byte 5 14 Store Loop Adapter Interrupt Flag Byte 4684 Store Loop Adapter A Chapter 5 Technical Reference Copyright IBM Corp 1991...

Page 24: ...re Loop Adapter Cable Diagram This figure shows a store loop adapter cable and a diagram of the cable wiring PICTURE 10 4684 Store Loop Adapter A Store Loop Adapter Cable Diagram Copyright IBM Corp 1991 5 1 1 ...

Page 25: ...Adapter Loop Relay Diagram This figure is a diagram of the loop relay circuitry located in a store loop adapter PICTURE 11 4684 Store Loop Adapter A Adapter Loop Relay Diagram Copyright IBM Corp 1991 5 2 1 ...

Page 26: ... 3 Store Loop Adapter Block Diagram This figure is a block diagram of an IBM 4684 Store Loop Adapter A PICTURE 12 4684 Store Loop Adapter A Store Loop Adapter Block Diagram Copyright IBM Corp 1991 5 3 1 ...

Page 27: ...r by finding the base address of your adapter and then adding the base address plus value Base Address Adapter Default C0000 First C4000 Second C8000 Third CC000 Fourth D0000 Fifth D4000 Sixth Base Address Start Memory Usage Plus 0000 ROS 2800 Shared Buffer 2FFF System Status Byte 3FF0 Failure Status Bytes 3FFF End 4684 Store Loop Adapter A Store Loop Adapter Storage Map Copyright IBM Corp 1991 5 ...

Page 28: ...5 1 POST Test Store Loop Errors Symptom Cause 6211 6218 Multiple errors 6221 6228 8051 POR errors 6231 6238 Latch test errors 6241 6248 Shared buffer errors 4684 Store Loop Adapter A POST Test Store Loop Adapter Errors Copyright IBM Corp 1991 5 5 1 ...

Page 29: ...op adapter tests Use this table to find information on the store loop adapter failure status bytes For Go to Byte 0 Store Loop Adapter Error Code in topic 5 7 1 Byte 1 Store Loop Adapter Microprocessor Status Codes in topic 5 8 1 Shared Buffer Latch Error Codes and Extended Data in Byte 2 topic 5 9 1 and Byte 3 Shared Buffer Error Codes and Test Patterns in Byte 4 topic 5 10 1 and Byte 5 Byte 6 No...

Page 30: ...5 7 Failure Status Byte 0 Subtopics 5 7 1 Store Loop Adapter Error Code 4684 Store Loop Adapter A Failure Status Byte 0 Copyright IBM Corp 1991 5 7 1 ...

Page 31: ...alues 7 Cable wrap 0 Good 1 Bad 6 Reserved 0 Good 1 Bad 5 ROS scan error 0 Good 1 Bad 4 Store loop adapter 0 microprocessor status Good 1 Bad 3 Shared buffer latch error code 0 Good 1 Bad 2 Shared buffer error code 0 Good 1 Bad 1 Reserved 0 Good 1 Bad 0 Reserved 0 Good 1 Bad 4684 Store Loop Adapter A Store Loop Adapter Error Code Copyright IBM Corp 1991 5 7 1 1 ...

Page 32: ...5 8 Failure Status Byte 1 Subtopics 5 8 1 Store Loop Adapter Microprocessor Status Codes 4684 Store Loop Adapter A Failure Status Byte 1 Copyright IBM Corp 1991 5 8 1 ...

Page 33: ...n occurred 62 A tag overrun occurred 63 A deserializer overrun occurred 65 A loop shut off command occurred 66 The Beacon Timer has expired in secondary mode 67 The End Of Poll Timer has expired in primary mode 68 A CRC error occurred in a message received from the system unit microprocessor 69 A store loop adapter microprocessor internal buffer overflow occurred 6A A store loop adapter microproce...

Page 34: ...5 9 Failure Status Bytes 2 and 3 Subtopics 5 9 1 Shared Buffer Latch Error Codes and Extended Data 4684 Store Loop Adapter A Failure Status Bytes 2 and 3 Copyright IBM Corp 1991 5 9 1 ...

Page 35: ... adapter microprocessor was not at adapter a ready and not enabled condition after initial system POR was complete status byte See page 5 11 06 Shared The 4684 microprocessor was unable to return the buffer shared buffer to the store loop adapter request microprocessor after initial POR was complete byte See page 5 12 07 Store loop The 4684 microprocessor was unable to acquire the adapter shared b...

Page 36: ...inal quiesce procedure system status byte See page 5 11 15 Store loop The store loop circuit was open during the adapter terminal quiesce procedure system status byte See page 5 11 16 Store loop The 4684 microprocessor was unable to acquire the adapter shared buffer for loop wrap setup system status byte See page 5 11 17 Store loop The 4684 microprocessor was unable to acquire the adapter shared b...

Page 37: ... 5 11 40 Store loop A level 7 interrupt was received with unexpected adapter status interrupt flag byte See page 5 14 70 Store loop The 4684 microprocessor was unable to acquire the adapter shared buffer for a software POR request system status byte See page 5 11 71 Store loop The software POR request failed adapter system status byte See page 5 11 72 Store loop The 4684 microprocessor was unable ...

Page 38: ... Data wrap receive error See page 5 8 1 adapter interrupt flag byte See page 5 14 9B Store loop The 4684 microprocessor was unable to acquire the adapter shared buffer for the offline procedure interrupt flag byte See page 5 14 C0 Store loop A level 7 interrupt was received when not adapter expected interrupt flag byte See page 5 14 F0 Store loop The 4684 microprocessor was unable to acquire the a...

Page 39: ... byte See page 5 11 4684 Store Loop Adapter A Shared Buffer Latch Error Codes and Extended Data Copyright IBM Corp 1991 5 9 1 5 ...

Page 40: ...5 10 Failure Status Bytes 4 and 5 Subtopics 5 10 1 Shared Buffer Error Codes and Test Patterns 4684 Store Loop Adapter A Failure Status Bytes 4 and 5 Copyright IBM Corp 1991 5 10 1 ...

Page 41: ...led 0D EF Data test pattern failed 0E DF Data test pattern failed 0F BF Data test pattern failed 10 7F Data test pattern failed 11 F1 Buffer address 0400 failed 12 02 Buffer address 0200 failed 13 F3 Buffer address 0100 failed 14 04 Buffer address 0080 failed 15 F5 Buffer address 0040 failed 16 06 Buffer address 0020 failed 17 F7 Buffer address 0010 failed 18 08 Buffer address 0008 failed 19 F9 Bu...

Page 42: ... 25 06 Buffer address 0004 failed 26 F5 Buffer address 0002 failed 27 04 Buffer address 0001 failed 28 F3 Buffer address 0000 failed 4684 Store Loop Adapter A Shared Buffer Error Codes and Test Patterns Copyright IBM Corp 1991 5 10 1 2 ...

Page 43: ...r POR Bit 6 0 Reset the POR mechanism Read write Reserved Bit 5 Read write Reserved Bit 4 Read only 1 Enable the interrupt mechanism Bit 3 0 Disable the interrupt mechanism Read write 1 Level 7 interrupt is active Bit 2 0 Level 7 interrupt is inactive Read only 1 Shared buffer access is complete Bit 1 0 Shared buffer return is complete Read write 1 Request ed shared buffer access Bit 0 0 Shared bu...

Page 44: ...agnostic self test request Bit 6 1 Read and process the timer function bytes Bit 5 1 Read and process the loop mode byte Bit 4 1 Process the transmit message s held in the shared buffer Bit 3 1 Read and process the timer transmit function bytes Bit 2 1 Internal 8051 storage dump request Bit 1 1 Read EC level request Bit 0 1 Read and process the loop address bytes 4684 Store Loop Adapter A Shared B...

Page 45: ...e 5 7 Shared Buffer Status Byte Bit Definition Bit 7 1 The diagnostic self test is complete Bit 6 0 All commands are complete 1 Busy Bit 5 1 Poll received Bit 4 1 Loop message received Bit 3 1 An error message is present Bit 2 1 An internal 8051 storage dump is present Bit 1 1 An EC level message is present Bit 0 Reserved 4684 Store Loop Adapter A Shared Buffer Status Byte Copyright IBM Corp 1991 ...

Page 46: ...evel 7 interrupt is not from the store loop adapter Bit 6 1 An interrupt occurred when not expected Bit 0 0 Bit 5 1 More than one interrupt occurred when only one was expected Bit 0 1 Bit 4 Not used always zero 0 Bit 3 Not used always zero 0 Bit 2 Not used always zero 0 Bit 1 1 A store loop adapter level 7 hardware interrupt has occurred Bit 0 1 A store loop adapter level 7 hardware interrupt is e...

Page 47: ...er A PICTURE 14 Asm Index Part Number Units Description 1 1 92F5844 AR Adapter card 2 6316840 AR Adapter cable Additional Service Aids Part Number Units Description 96X4967 AR Wrap plug 4684 Store Loop Adapter A Appendix A Parts Catalog Copyright IBM Corp 1991 A 0 1 ...

Page 48: ...ranty Information Subtopics B 1 International Business Machines Corporation Armonk New York 10504 B 2 STATEMENT OF LIMITED WARRANTY 4684 Store Loop Adapter A Appendix B Warranty Information Copyright IBM Corp 1991 B 0 1 ...

Page 49: ...y start date IBM and IBM Remarketer or an IBM authorized supplier will supply the Date of Installation to you The Warranty Period will commence on this Date 2 Warranty Duration Three months 3 Type of Service IBM On Site Repair IOR 4 Provider of Warranty Service IBM or Remarketer may provide warranty service for this Machine 5 Period of Warranty Service Availability Contact a Remarketer to determin...

Page 50: ...ntifies this Machine and specifies other important information This Machine will be subject to this Statement of Limited Warranty only if purchased and located in the United States or Puerto Rico Subtopics B 2 1 DEFINITIONS B 2 2 LIMITED WARRANTIES B 2 3 Service and Parts Warranty B 2 4 Types of Service B 2 5 Additional Provisions for Features and Model Conversions B 2 6 Additional Provisions for ...

Page 51: ...ures model conversions machine elements and accessories unless the context requires individual reference The term failing machine shall mean a machine or machine element requiring warranty service as initially determined by you and as applicable verified by IBM The term exchange machine shall mean a machine or machine element provided to you by IBM under an Exchange Type of Service 4684 Store Loop...

Page 52: ...rder and will conform to IBM s official published specifications IBM will make these specifications available to you upon request The Warranty Period for this Machine commences on its Date of Installation The Warranty Period duration is specified in the Warranty Exhibit If the Warranty Period expires on a Friday or Saturday IBM will extend the Warranty Period so that its last day will be the follo...

Page 53: ...y be used parts on an exchange basis IBM will acquire title to the replaced parts You are responsible to remove or protect all programs data and removable storage media before IBM repairs the Machine Under an Exchange Type of Service IBM will provide an exchange machine which may not be new but will be in good working order You will acquire title to it at the time of exchange IBM will acquire titl...

Page 54: ...or equivalent to an IBM location designated to receive such shipment Following any repairs IBM will ship the machine or machine element to your location prepaid within the United States or Puerto Rico Customer Carry In Exchange CCE You will 1 deliver the failing machine to an IBM designated location 2 pick up the exchange machine and take it to your location 3 connect it and 4 verify its operation...

Page 55: ...n incorrectly functioning machine upon your request IBM will remove the feature addition and or model upgrade and restore the machine to its prior condition In such case IBM will invoice you IBM s generally available charges including travel expenses If the feature addition or model upgrade did not involve the removal of parts which became IBM s property such feature addition or model upgrade rema...

Page 56: ...u will remove any such machine element or accessory which fails in normal use You will then ship it prepaid to the IBM location designated to receive such shipment IBM will repair or replace at its option such machine element or accessory IBM s shipment to you will be prepaid within the United States or Puerto Rico 4684 Store Loop Adapter A Additional Provisions for Machine Elements and Accessorie...

Page 57: ...se associated with warranty service except when the site at which the Machine is located is inaccessible to the IBM service representative by both private automobile and scheduled public transportation 4684 Store Loop Adapter A Travel Expense Copyright IBM Corp 1991 B 2 7 1 ...

Page 58: ... Machine including inspection of an altered Machine or repair of damage caused by use of inadequate use of or failure to use supplies If service not included in warranty service is available and IBM provides such service it will be provided for an additional charge IBM shall determine such charge by using IBM s 1 then generally available hourly service rates and minimum charges for service time in...

Page 59: ...ncluded in an alteration If you transfer this Machine to another user IBM will provide the availability of warranty service under this Statement to that user Such warranty service will be available for the remainder of the Warranty Period Therefore you should transfer the proof of purchase and this Statement to that user THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLI...

Page 60: ... or 2 the amount you paid for the Machine which caused the damages This limitation of liability will not apply to claims for personal injury or damage to real property or tangible personal property caused by IBM s negligence In no event will IBM be liable to you for any damages caused by your failure to fulfill your responsibilities under this Statement of Limited Warranty In no event will IBM be ...

Page 61: ...4 cable wiring 5 1 loop adapter block 5 3 loop relay 5 2 discharge static 2 1 E error code adapter 5 7 1 extended data shared buffer latch 5 9 1 F failure status byte 0 5 7 1 byte 1 5 8 1 bytes 5 6 bytes 2 and 3 5 9 1 bytes 4 and 5 5 10 1 finding problems 4 0 I information configuration 3 0 finding problems 4 0 installation 2 0 introduction 1 0 parts catalog A 0 problem determination 4 0 technical...

Page 62: ...s 3 0 S shared buffer errors and test patterns 5 10 1 latch and extended data 5 9 1 request byte 5 12 status byte 5 13 static discharge 2 1 status bytes adapter failure 5 6 byte 0 5 7 1 byte 1 5 8 1 bytes 2 and 3 5 9 1 bytes 4 and 5 5 10 1 interrupt flag 5 14 POST test errors 5 5 shared buffer 5 13 shared buffer request 5 12 system 5 11 storage map loop adapter 5 4 store loop adapter diagram block...

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