Lucent Technologies USS-720 Extended Control Register Address Bit Symbol, Mode20 Description

Page 46

USS-720Instant USB

 

 

 

 

 

 

 

Preliminary Data Sheet, Rev. 5

USB-to-IEEE1284 Bridge

 

 

 

 

 

 

 

September 1999

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IEEE 1284 Port (continued)

 

 

 

 

 

 

 

 

 

Extended Control Register

 

 

 

 

 

 

 

 

 

Table 27. Extended Control Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Extended Control Register

 

 

 

 

Address: 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

7

 

6

 

5

 

4

 

3

 

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

 

Mode[2]

 

Mode[1]

 

Mode[0]

 

nAck

 

nFault

 

Bulk In

Bulk In

Bulk Out

 

 

 

 

 

 

 

 

interrupt

 

interrupt

 

interrupt

empty

empty

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Access

 

R/W

 

R/W

 

R/W

 

Read

 

Read

 

Read

Read

Read

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

0

 

0

 

0

 

0

 

0

 

0

1

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

 

Symbol

 

 

 

 

 

Bit Description

 

 

 

 

 

 

7—5

 

Mode[2:0]

Mode. In Register Mode (when Auto Mode is 0), this bit controls the mode of the

 

 

 

 

parallel port interface. This field is equivalent to the Mode field in a standard host-side

 

 

 

 

parallel port controller chip. The supported modes are as follows:

 

 

 

 

 

Mode[2:0]

Mode

 

 

Description

 

 

 

 

 

 

000

 

Standard Mode

 

Full software control, data lines are output only

 

 

 

 

001

 

Bidirectional Mode

 

Full software control, data lines are bidirectional

 

 

 

 

010

 

Compatibility Mode

 

Hardware handshaking

 

 

 

 

 

 

011

 

ECP Mode

 

 

Software negotiations, hardware data transfers

 

 

 

 

100

 

EPP Mode

 

 

Software negotiations, hardware data transfers

 

 

 

 

101

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

110

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

111

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

For more information, see the Register-Based Operation section on page 14.

 

 

 

 

4

 

nAck

nAck Interrupt. This bit will be set when the parallel port nAck signal makes a transi-

 

 

Interrupt

tion from 0 to 1 while the Interrupt Enable bit in the Control Register is set to 1. Inter-

 

 

 

 

rupt status is cleared by any register read.

 

 

 

 

 

 

 

 

3

 

nFault

nFault Interrupt. This bit will be set when the parallel port nFault signal makes a tran-

 

 

Interrupt

sition from 1 to 0 while the nFault Interrupt Mask bit in the USS-720 Control Register

 

 

 

 

is set to 0. An interrupt will also be generated if the mask bit goes low while nFault is

 

 

 

 

low. Interrupt status is cleared by any register read.

 

 

 

 

 

 

2

 

Bulk In

Bulk In Interrupt. This bit will be set when Bulk In data is available and the Bulk In

 

 

Interrupt

Interrupt Mask bit in the Control Register is set to 0. This allows software to use the

 

 

 

 

interrupt pipe to automatically receive notification of available Bulk In data rather than

 

 

 

 

polling with Bulk In requests. Interrupt status is cleared by any register read.

 

 

 

 

1

 

Bulk In

Bulk In Empty. This bit will be clear when there is Bulk In data available for reading

 

 

Empty

by the host, and set when there is not.

 

 

 

 

 

 

 

 

0

 

Bulk Out

Bulk Out Empty. This bit will be clear when there is Bulk Out data waiting in the

 

 

Empty

buffers or in the process of being transmitted over the parallel port, and set otherwise.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-20

Lucent Technologies Inc.

Image 46
Contents Introduction Information Manual, Rev SeptemberTable of Contents Information Manual, Rev Evaluation Kit for USS-720 September USB-to-IEEE BridgeIOCTL1284 Terminate USS-720 USB Device Driver Preliminary User GuideIOCTLSET1284REGISTER USS-720 USB Port Monitor Application Note Evaluation Kit Contents Hardware Requirements \SAMPLESOSR2.1 Cable Installation Instructions Getting Started InstructionsSoftware Updates Windows 98 Cable Installation InstructionsPlug and Play USB Driver and Port MonitorPort Creation Eeprom Lucent Technologies Inc Lucent Technologies Microelectronics Group In-System Design, IncUSB Applications Support September February Evaluation Kit SoftwareUSS-720 Driver Software Object Code License Agreement IntroductionFurnishing of Licensed Software USS-720 Software Use Agreement FebruaryLicensed Software OwnershipUSS-720 February Software Use AgreementNothing Construed Warranty and IndemnityAgreement Prevails 04 ConfidentialityAddresses PublicityNonassignability IntegrationApplicable Law DisputesUSS720.INF USS720.SYSDocumentation USS-720 Software Use Agreement February Software Components Application Note, Rev FebruaryPlug and Play Operation PnP Customer-Defined DataPrinter Enumeration Operating Systems Supported Power ManagementInstallation Process USB Hardware Types SupportedPrinter Types Supported Print Types SupportedPreliminary Data Sheet, Rev September FeaturesDescription Table of Contents Pin Information Preliminary Data Sheet, Rev USS-720USB-to-IEEE Parallel Port nInit Signal Active-Low Parallel Port nAutoFd Signal Active-LowParallel Port nSelectIn Signal Active-Low Parallel Port nAck Signal Active-LowDevice Descriptor, Configurations, and Inter- faces OverviewUSB Port Descriptor LocationsOnboard Device Descriptor USB-to- Ieee 1284 Bridge SeptemberDevice Descriptor Offset Field Size Value Description USB-to- Ieee Configuration DescriptorInterface Descriptors Bulk Out Endpoint Descriptor, I0A0E1Bulk Out Endpoint Descriptor, I0A1E1 September USB-to-IEEE1284 BridgeBulk In Endpoint Descriptor, I0A1E2 Bulk In Endpoint Descriptor, I0A2E2 Bulk Out Endpoint Descriptor, I0A2E1Interrupt Endpoint Descriptor, I0A2E3 Requests PipesStandard Requests Printer Class-Specific Requests Get Port Status Data Bit DescriptionGET1284REGISTER Vendor-Specific RequestsSET1284REGISTER Ieee 1284 Port Register-Based OperationInterrupt Pipe Read Data RegistersGET1284REGISTER Data Byte Register Data Byte Register DataDefault Bit Symbol Bit Description Status Register Address Bit SymbolParallel Port nFault Signal Reserved Parallel Port nInit Signal Control Register Address Bit SymbolAccess Default Bit Symbol Bit Description USB-to-IEEE1284 BridgeUSS-720Instant USB ECP Command Register Address Bit Symbol Access Extended Control Register Address Bit Symbol Mode20 DescriptionUSS-720 Control Register Address Bit Symbol USS-720 Setup Register Address Bit Symbol Interrupts External Circuitry Requirements External Crystal ConnectionSelf-Powered Mode Filter Bypass ModeHigh Drive Mode Absolute Maximum Ratings Parameter Symbol Min UnitCapacitance Values Parameter Unit Electrical CharacteristicsParameter Symbol Test Conditions Min Typ Max Unit Clklo ClkhiSetup and Hold Input Timing Parameter Timing CharacteristicsOutput Delay Timing Parameter Min Max Unit Pin Mqfp Outline DiagramOrdering Information Device Code Package ComcodeApplication Note February Description Bridging USB to Typical Circuit Showing ParallelPort USSLucent Technologies Inc Signal Directions Preliminary User Guide, Rev FebruaryIOCTL1284 Setmode Preliminary User Guide, Rev USS-720 February InitializationO File Functions USB Device DriverCreateFile Error Codes ReadFileWriteFile DeviceIoControl CloseHandle O Control Codes Control Code DescriptionIOCTL1284 Ecpfwdtorev ParametersIOCTL1284ECPREVTOFWD IOCTL1284 Ecpsetchannel Register Mode Description IOCTL1284 SetmodeIOCTL1284 Terminate Bulkoutpipe IoctlabortpipeValue Description BulkinpipeIoctlcancelpiperequest IOCTLGET1284REGISTER ALTINTERFACE1 IoctlgetaltsettingALTINTERFACE0 ALTINTERFACE2Ioctlgetcapabilities Ioctlgetconfigurationdescriptor Ioctlgetdevicedescriptor Ioctlgetdeviceinstances Ioctlgetinterface Ioctlgetportstatus Bit MeaningIOCTLISSUEUSS720COMMAND Command DescriptionIoctlreadinterruptpipe Byte DescriptionIoctlresetpipe IOCTLSET1284REGISTER Ioctlsetaltsetting Ioctlsoftreset Deviceinstance O Control Data StructuresDeviceinstanceheader Data StructureREGISTER1284 REGISTER1284, *PREGISTER1284ADVREGISTER1284 ADVREGISTER1284, *PADVREGISTER1284Lucent Technologies Inc USS-720 USB Port Monitor USS-720 Application Note USB Port Monitor February Printer Cable with Instant USBApplication Note June Software Installation InstructionsW98USS720EvalKit2402.zip to download the installation files Click on Enter LibrarySeptember MN99-052CMPR-1 Replaces MN97-061CMPR-04