IBM 6268, 6288, 6278 manual Supply, Diskette Drive Connector Pin Assignments

Page 40

Appendix

A. Connector

pin

assignments

Figure

23

(Page

2

of

2).

IDE connector pin assignments

Signal

I/O

Pin

Signal

I/O

15

Data

bus

bit

1

I/O

35

SA0

O

16

Data

bus

bit

14

I/O

36

SA2

O

17

Data

bus

bit

0

I/O

37

CS0#

O

18

Data

bus

bit

15

I/O

38

CS1

O

19

Ground

NA

39

Active#

I

20

Key

(Reserved)

NA

40

Ground

NA

Diskette

drive

connector

Figure

24.

Diskette Drive Connector Pin Assignments

Signal

I/O

Pin

Signal

I/O

1

Drive

2

installed #

I

2

High

density

select

O

3

Not

connected

NA

4

Not connected

NA

5

Ground

NA

6

Data

rate 0

NA

7

Ground

NA

8

Index#

I

9

Reserved

NA

10

Motor

enable

0#

O

11

Ground

NA

12

Drive

select

1#

O

13

Ground

NA

14

Drive

select

0#

O

15

Ground

NA

16

Motor

enable

1#

O

17

MSEN1

I

18

Direction

in#

O

19

Ground

NA

20

Step#

O

21

Ground

NA

22

Write

data#

O

23

Ground

NA

24

Write

enable#

O

25

Ground

NA

26

Track0#

I

27

MSEN0

I

28

Write

protect#

I

29

Ground

NA

30

Read

data#

I

31

Ground

NA

32

Head

1

select#

O

33

Data

rate 1

NA

34

Diskette

change#

I

Power

supply

connector

Figure

25

(Page

1

of

2).

Power Supply Connector Pin Assignments

Signal

Name

Signal

Name

1

+3.3

V

11

+3.3

V

2

+3.3

V

12

−12 V

3

Ground

13

Ground

4

+5

V

14

ON/OFF

5

Ground

15

Ground

6

+5

V

16

Ground

7

Ground

17

Ground

8

PWR

GOOD

18

Reserved

32 Technical Information Manual

Image 40

Contents Technical Information Manual PC 300GL Types 6268, 6278, 1999 ApplyAre WithContents Bios System softwarePost System compatibilitySystem board Keyboard port 26. J13 Modem/Ring Wakeup Connector Pin AssignmentsUSB port Internal Dasd Preface Related publicationsTerminology usage IBMWhen Expressing storage Capacity MB equals Viii Technical Information Manual System overview Major featuresSystem overview Other features Network supportRing Ring DetectFeatures Chapter SystemSystem memory PCI busSdram DimmUSB interface IDE bus master interfaceBus Video subsystem Graphics memory controller hub Super Video Graphics ArrayAPM AcpiSupported VGA video modes PC 300GL supports the following video subsystem modesSupported Enhanced VGA video modes Features Mode Screen Resolution Colors Refresh RateMonitor support Video memoryAudio subsystem ControllerDiskette drive interface Serial portsDefault setting for the serial port is COM1 Parallel portKeyboard and mouse ports Serial port assignmentsNetwork connection Flash EepromExpansion adapters ClockCable connectors Bios configuration jumper J7A1Physical layout JumperConnector panel Connector panel for the desktop modelPhysical specifications Physical specificationsDesktop Computers Not SupportCabling RequirementsPower supply Power inputPower output Power supplyComponent outputs For Each PCI connectorComponents draw less current than Maximum Shown Power That Available Nominal Value PowerOutputs Connector pin Assignments See Appendix a Pin Power supplyPlay System softwareSystem software Configuration/Setup Utility program Advanced Configuration and Power InterfaceDiagnostic program UtilitySystem compatibility Hardware compatibilityHardware interrupts System compatibilityDrive type 720 KB Mode MB Mode Hard disk drives and controllerSoftware interrupts Software compatibilityMachine-sensitive programs Appendix A. Connector pin assignments Monitor connectorMemory connectors Appendix A. Connector pin assignmentsConnector Pin X64 Non-Parity X72 ECCSystem memory connector pin input/output Connector pinAssignments Pin Signal Name 3. System memory connector pin input/outputPin Assignments PCI connectors PCI bus connector PCI connector pin assignmentsConnector PinIDE connectors IDE connector pin assignmentsDrive Diskette Drive Connector Pin AssignmentsSupply Wakeup and Wake on LAN connectors USB port connectorsPort KeyboardSerial port connector Keyboard port connector pin assignmentsSerial Port Connector Pin Assignments Parallel port connector pin assignments2. Parallel port connector pin assignments Appendix B. System address maps SystemAppendix SystemMaps ICH1, DMAAre Reserved O address mapDMA I/O address map Bits Byte PointerMap ConfigurationSystem address maps Appendix C. IRQ and DMA channel assignments Appendix C. IRQ and DMA channel assignmentsIRQ channel assignments DMA channel assignmentsAppendix D. Error Codes Error CodesBeep codes Complete ListAppendix E. Notices and trademarks References This PublicationReference 300Advanced Power SpecificationLow Pin Count Interface Specification ReferencesIndex IndexError Codes Power Consumption Description For

6278, 6268, 6288 specifications

The IBM 6278, 6288, and 6268 are part of IBM's extensive lineup of mid-range computers, specifically tailored for business environments in the late 1980s and early 1990s. These systems were designed to handle substantial data processing tasks, facilitating efficient business operations with robust performance and reliability.

The IBM 6278 was notable for its high-performance capabilities, making it suitable for a variety of applications ranging from transaction processing to complex computations. One of the main features of the 6278 was its multiprocessing capability, which allowed it to run multiple tasks concurrently. This was achieved through a combination of advanced hardware and software that optimized performance and resource allocation.

Similarly, the IBM 6288 was recognized for its versatility and scalability. This system incorporated enhanced memory management and was capable of handling larger workloads than its predecessors. The 6288 was designed with user-friendly interfaces and supported various input/output devices, making it easier for organizations to integrate into existing IT infrastructures. Additionally, it provided improved connectivity options, essential for modern networking needs at the time.

The IBM 6268, on the other hand, offered a balance between cost and performance, appealing to smaller businesses or those with less intensive data processing requirements. Despite being less powerful than the 6278 and 6288, the 6268 still managed to include essential features such as reliable data storage, effective processing speed, and compatibility with IBM's extensive software ecosystem.

All three models utilized IBM's proprietary operating systems, which were well-known for their robustness and security features. They were built with technologies such as error detection and correction, ensuring the integrity of data processing tasks. The architecture of these systems also allowed for easy upgrades, enabling businesses to expand their capabilities without a complete overhaul of their IT infrastructure.

In summary, the IBM 6278, 6288, and 6268 represented a significant advancement in mid-range computing technology during their era. Their main features encompassed multiprocessing, scalability, and user-friendly interfaces, making them valuable assets for businesses seeking reliable and efficient computing solutions. These systems laid the groundwork for future innovations in business computing, and despite their age, they remain a significant part of IBM's legacy in the computing industry.