Motorola MVME712AM, MVME712A/D3, MVME712-12, MVME712B user manual GND Ground Termpwr Terminator Power

Page 45

3

Support Information

Table 3-7. SCSI INTERFACE Interconnect Signals (MVME712B) (Continued)

Pin

Signal

Signal Name and Description

Number

Mnemonic

 

 

 

 

 

 

 

33

DB07*

DATA bus (bit 7) - most signiÞcant bit and the

 

 

highest priority during the arbitration phase.

 

 

 

34

DBP*

DATA bus (parity) - data parity is odd. Use of

 

 

parity is a system option. Parity is not valid

 

 

during the arbitration phase.

 

 

 

35-37

GND

GROUND

 

 

 

38

TERMPWR

TERMINATOR POWER

 

 

 

39,40

GND

GROUND

 

 

 

41

ATN*

ATTENTION - signal driven by the initiator.

 

 

Indicates the attention condition.

 

 

 

42

GND

GROUND

 

 

 

43

BSY*

BUS BUSY - OR-tied signal that indicates that

 

 

the bus is being used.

 

 

 

44

ACK*

ACKNOWLEDGE - signal driven by an initiator

 

 

to indicate an acknowledgment for a REQ/ACK

 

 

data transfer handshake.

 

 

 

45

RST*

RESET - OR-tied signal that indicates the RESET

 

 

condition.

 

 

 

46

MSG*

MESSAGE - signal driven by the target during

 

 

the message phase.

 

 

 

47

SEL*

SELECT - signal used by an initiator to select a

 

 

target or by a target to reselect an initiator.

 

 

 

48

D/C*

DATA/COMMAND - signal driven by the

 

 

target. It indicates whether command or data

 

 

information is on the data bus. True (low)

 

 

indicates command.

 

 

 

49

REQ*

REQUEST - signal driven by a target to indicate

 

 

a request for a REQ/ACK data transfer

 

 

handshake.

 

 

 

50

O/I*

OUTPUT/INPUT - signal driven by a target that

 

 

controls the direction of data movement on the

 

 

bus. True (low) indicates input to the initiator.

 

 

False (high) indicates output from the initiator.

 

 

This signal is also used to distinguish between

 

 

selection and reselection phases.

 

 

 

3-12

MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual

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Contents MVME712A/D3 MVME712A, MVME712AMRestricted Rights Legend Preface Related DocumentationDocument Title Motorola Publication Number Manual Terminology Page Safety Summary Safety Depends On You This equipment generates, uses, and can radiate radio Page Contents Page List of Figures Features of the MVME712 Family Modules IntroductionCollective Reference Characteristics SpeciÞcations Features of the LCP2 Adapter BoardSpecifications MVME712 Family SpecificationsFCC Compliance Cooling RequirementsGeneral Description MVME712x Module Preparation Unpacking InstructionsMVME712-12 Header Locations MVME712x Module Preparation LocationsMVME712AFigure 2-3.Header InstallationHardware PreparationLMVME712AMocationsFigure 2-4.Header DCE DTE DSR Line Pull Up Select Headers J8, J9, J13, J14Ote Serial Port 2/Modem Port 2 Select J16, J17Serial Port Configuration Modem Port ConfigurationScsi Termination MVME712B Module PreparationMVME712B Connector Locations LCP2 Adapter Board Preparation LCP2 Adapter Connector LocationsInstallation Instructions Installing for Use with Internal Scsi Devices Internal Scsi and Serial Port Connections Installing the MVME712-13 and MVME712AM as a Modem Internal Scsi and Modem Connections MVME712B Installation MVME712B External Scsi Connections Hardware Preparation and Installation LCP2 and MVME712 Connectors Interconnect SignalsMVME712 Jumpers FromConnectors J1, J3-J5 Interconnect Signals MVME712x Connector P2 Interconnect Signals LCP2 AdapterConnectors J1, J3-J5 Interconnect Signals MVME712x Pin Signal Signal Name and Description Number MnemonicCTS RTSConnector J2 Interconnect Signals LCP2 Adapter Connector J2 Interconnect Signals LCP2 AdapterPrack GND Ground PrfaultPrpe PrbsyTXD1 DTR3GND Ground RXD1 GND Ground RTS1GND Ground TRXC4 RTS4DTR4 CTS4RTS2 CTS2DCD2 DTR2Connector J3 Interconnect Signals LCP2 Adapter Connector Connector J2 Interconnect Signals MVME712-13, MVME712AMConnector J2 Interconnect Signals MVME712-13/AM Connector J3 Interconnect Signals LCP2 AdapterGND Ground DBP Termpwr Terminator PowerGND Ground ATN GND Ground BSYConnector Scsi Interface Interconnect Signals MVME712B Scsi Interface Interconnect Signals MVME712BGND Ground REQ GND Ground Termpwr Terminator Power Connector Ethernet Interconnect Signals MVME712B Ethernet Interconnect Signals MVME712BMAU Connector J7 Interconnect Signals MVME712-13, MVME712AM Connector J6 Interconnect Signals MVME712-13, MVME712AMConnector J6 Interconnect Signals MVME712-13/AM 10. Connector J7 Interconnect Signals MVME712-13/AM11. Connector J10 Interconnect Signals MVME712x Connector J10 Interconnect Signals MVME712xMDMRXD2 MDMDCD2Connector P2 and J11 Interconnect Signals MVME712x 12. Connector P2, J11 Interconnect Signals MVME712xPin Number Signal Signal Name and Description J11 Mnemonic Data bit 6 Printer A16 A23 13. Connector J12 Interconnect Signals MVME712-13/12AM Connector J12 Interconnect Signals MVME712-13, MVME712AM14. Connector J15 Interconnect Signals MVME712x Connector J15 Interconnect Signals MVME712x15. MVME712 x Module Parts List Parts Lists and LocationsModel Parts List Parts Location Drawing Reference Motorola Description Designation Part Number15. MVME712x Module Parts List Modem kit MVME712-13 and MVME712AM MVME7121.-3FigureocationL-12 Parts SideMVME712-13 Parts Location Drawing Primary Side DrawingFigure 3-3. MVME712A Parts LocationPrimary Side 1532 CR3 CR4 CR5 CR6 CR7 CR8 CR9 PartsMVME712AMFigure 3-4.Location Drawing Primary SideReference Motorola Designation Support Information MVME712A and MVME712AMMVME712B Parts Location Drawing CR1 17. LCP2 Adapter Module Parts ListSchematic Drawings Module Board Part Number PagesMVME712AM LCP2 Support Information Modem Modem Features Table A-1. Modem FeaturesFeatures BeneÞts Technical Specifications Characteristic SpeciÞcationTable A-2. Technical Specifications TTL/CMOSTable A-3. Autodialer Characteristics Index MVME712AM IN-7
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