Ampro Corporation 5001451A manual DMA Channels, Parallel Port Connector J9

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The ROM-BIOS scans I/O addresses for parallel ports in the following order: 3BCh, 378h, 278h.

DMA Channels

In ECP enhancement mode, the parallel port can send and receive data under control of an on- board DMA controller. On the Little Board P6d module, select a DMA channel in Setup. You can configure the parallel port to use either DMA channel 1 or DMA channel 3. If you will not be using DMA with the parallel port, leave it disabled. This makes the DMA channel available to other peripherals installed on the expansion buses.

Parallel Port Connector (J9)

The parallel port appears on J9. Its pinout is arranged so that a 26-pin ribbon cable can be directly connected to a 25-pin DB-25 connector to match the PC standard pinout.

Table 2-20gives the connector pinout and signal definitions for the parallel port. In addition, the table indicates the pins to which each signal must be wired for compatibility with a standard DB25 connector. Normally the PC parallel port uses a female “DB“ connector.

2-20

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Contents Little Board P6d Reference Manual Revision Reason for Change Date Copyright 2000, 2002, Ampro Computers, IncorporatedTable of Contents Preface ROM Bios Standards Contact Information Cables Index Page Website IntroductionTechnical Support Surface MailViii CPU/Motherboard Product Feature SummaryGeneral Description CompactFlash Disk Enhanced Embedded-PC BiosModular PC/104-Plus Expansion Bus Floppy Interface Serial PortsParallel Port PCI-Bus Eide InterfacesFlat Panel/CRT Display Controller MBps Ethernet LAN InterfaceEnhanced Reliability SoftwareDesigning Little Board Systems On-board MiniModule ExpansionLittle Board Development Platform And QuickStart Kit I/O Development BoardConnector Name Description Connector DescriptionsJ2 Power Pin # SignalJ4 Keyboard Switch Descriptions S1 S5J3 Misc J5 MouseSystem Block Diagram Page Mounting Dimensions OverviewLittle Board P6d Module with Mounting Dimensions Connector Summary Connector Function Size Key PinPage Little Board P6d Connector and Jumper Locations Jumper Group Function Default Jumper SummaryPin # Signal Name Function DC PowerPower Requirements Connector Type Mating ConnectorBackup Battery Switching Power SuppliesPowerfail NMI Cooling RequirementsPin # Function Fan ConnectorSystem Memory Shadowing Bios RecoveryInterrupt and DMA Channel Usage Interrupt Function Channel Function Battery-Backed ClockSerial Ports Addresses and Interrupt Assignments ROM-BIOS Installation of the Serial PortsSerial Port Connectors J8, J11 Port Address InterruptPorts Pin # Name Function Ports Pin # Signal Name Function In/Out DB25 Pin DB9 PinSignal DB25 Serial TTL Option Ampro Custom Serial FeaturesSerial Console Features Jumper ResultUsing a Standard PC Keyboard COM Port Table Using Arrow Keys During Setup Universal Serial Bus USB Ports Function Substitute KeysJ5 Pin # Signal Name Function IrDA Connector Part of Utility J19J4 Pin # Signal Name Function Infrared IrDA InterfaceMulti-Mode Parallel Port ROM-BIOS Installation of Parallel PortsJ19 Pin # Signal Name Function Addresses and InterruptsParallel Port Connector J9 DMA ChannelsPin # Signal Name Function In/Out DB25 Pin IEEE-1284-compliant CablesParallel Port Registers Using the Parallel Port in Bidirectional ModeLatch-Up Protection Standard and Bidirectional OperationUsing the Control Lines for Additional I/O Enabling the Parallel Port Interrupt22. Parallel Port Register Bits Floppy Drive Considerations Floppy Interface ConfigurationFloppy Disk Interface Capacity Drive Size Tracks Data RateEide Hard Disk Interface Floppy Interface Connector J14Pin # Signal Name Function In/Out Pin # Signal Function Name CompactFlash Solid-State Disk IDE Interface ConfigurationMaster/Slave Setting Enabling the DriveAudio Amplifier Audio Interface ConnectorAudio Interface Connector Function Type Signals Audio Interface Adapter Schematic Pin # Signal Function Flat Panel/CRT Video ControllerConnecting a Flat Panel J15 Name Connector Pins/Type DescriptionPower Sequencing Advanced Power ManagementBios Support of Standard Flat Panels Connecting a CRT J17J6 Pin # Name Function Pin # Signal Name DB-15ZV Port Interface J16 Disabling the Video Controller Ethernet RJ45 Interface Connector J13Ethernet Network Interface Hardware DescriptionNetwork Operating Systems Ethernet Interface SoftwareManufacturers Ethernet ID Network OS DriversEthernet Indicator LEDs Watchdog TimerEthernet Setup Color Designation FunctionUtility Connectors J19 38. Utility Connector J19 Speaker Connections Push-button Reset ConnectionLED Connection Keyboard ConnectionIrDA Interface Miscellaneous Power Management SignalsPC/104-Plus Expansion Bus TTL Serial PortsUsing Standard PC and AT Bus Cards Expansion Bus Connector PinoutsPin # Signal Name Function Pin # Signal Function Name Pin 12VSetup Setup HelpMenu Name Functions Setup 1 Main Menu ↑ ↓ → ←Setup 2 Standard Cmos Setup Eide Hard Disk DrivesDrive Selection Setup 3 Bios Features Setup VideoSerial Console Operation during Setup Setup 4 Chipset Features Setup 10. Setup 4 Chipset Features SetupSetup 5 Power Management Setup 11. Setup 5 Power Management SetupPage Setup 6 PCI Configuration Setup 12. Setup 6 PCI Configuration SetupSetup 7 Integrated Peripherals Setup Integrated Peripherals SetupPanel # Panel Class IDE HDD Auto Detection Screen Other Setup ScreensLoad Setup Defaults Screen Save & Exit Setup Screen Exit Without Saving ScreenLittle Board P6d Technical Specifications Embedded-PC System EnhancementsOn-board Peripherals Mechanical and Environmental Specifications Support SoftwareBios Modes Flat Panel DisplaysSupported CRT Video Modes-Standard VGA Supported CRT Video Modes-Low Resolution Supported CRT Video Modes-Extended Modes 46h Generic 32K 8x16 Hardware IRQ Map IRQ #Page Appendix a Standards Contact Information EPP and ECP OperationPage Appendix B Cables Page Cable Setup Index Setup summary Shadowing Index Index-4