Ampro Corporation 5001451A Interrupt and DMA Channel Usage

2-10

Table 2-6. System Memory Map

Memory Address Function

FE0000h - FFFFFFh Duplicates BIOS at 0E0000-0FFFFFh.

100000h - FDFFFFh Extended memory

0E0000h - 0FFFFFh 128K ROM BIOS

0D0000h - 0DFFFFh BIOS extension option, if enabled. Otherwise, free.

0CB000h - 0CFFFFh USB

0C0000h - 0CAFFFh Video BIOS (44K)

0A0000h - 0BFFFFh Normally contains video RAM, as follows:

CGA Video: B8000-BFFFFh

Monochrome: B0000-B7FFFh

EGA and VGA video: A0000-AFFFFh

000000h - 09FFFFh Lower 640K DRAM

ROM BIOS

The standard BIOS is installed in a 256KB Flash device at the factory. The top 128KB of the Flash

device is reserved for the system BIOS, located at 000E0000h – 000FFFFFh and mirrored at the to p

of the memory address space. The remaining 128KB are mapped only to the top o f memory .

A utility program, PGM6X.COM, can be used to program the on-board Flash device. It can be used

to update the system BIOS, video BIOS, or user area. The utility is included o n the utility diske tte

that accompanies the Ampro Development Platform. The diskette includes docume ntation abo ut

how to use the program.

Shadowing

To improve system performance, the contents of the ROM BIOS and video BIOS are copied into

DRAM for execution (“shadowed”), where they are accessed as 64-bit wide data. Shadowing a BIOS

ROM substantially enhances system performance. Shadowing for both the ROM and video BIOS is

built into the Ampro Extended BIOS. There is no user setting.

BIOS Recovery

If the BIOS Flash device somehow becomes corrupted, the Little Board P6d system may not boot.

In this case, the BIOS will have to be reprogrammed. A disk with an image of the current BIOS

along with the Utility PGM6X.COM may be used to restore the BIOS image. Before this can be

done, the Little Board P6d system needs to be Booted and running DOS.

Interrupt and DMA Channel Usage

The PC architecture provides several interrupt and DMA control signals. When you expand the

system through the ISA portion of the PC/104-Plus bus with MiniModule prod ucts or plug- in cards

that require either interrupt or DMA support, you must select which interrupt or DMA channel to

use. Typically this involves switches or jumpers on the expansion module. In most cases, these are

not shared resources. It is important that you configure the new module to use an interrupt or

Contents

Main Revision Reason for Change Date Table of Contents Preface Introduction Product Reference Page Technical Specifications Standards Contact Information Cables Index Page Preface Introduction Technical Support Page Chapter 1 Introduction General Description Product Feature Summary CPU/Motherboard Enhanced Embedded-PC BIOS Modular PC/104-Plus Expansion Bus CompactFlash Disk Serial Ports Parallel Port Floppy Interface PCI-Bus EIDE Interfaces PCI Audio Interface Flat Panel/CRT Display Controller 100 MBps Ethernet LAN Interface Enhanced Reliability Software Designing Little Board Systems On-board MiniModule Expansion Little Board Development Platform And QuickStart Kit Figure 1-1. I/O Development Board Connector Descriptions J1 Utility J2 Power J3 Misc. J4 Keyboard Switch Descriptions (S1 S5) Figure 1-2. System Block Diagram Page Chapter 2 Product Reference Overview Mounting Dimensions 2-2 Figure 2-1. Little Board P6d Module with Mounting Dimensions Connector Summary Page 2-5 Figure 2-2. Little Board P6d Connector and Jumper Locations Jumper Summary DC Power Power Requirements Other Voltages Switching Power Supplies Powerfail NMI Cooling Requirements Thermal Sensor Fan Connector Figure 2-3. CPU Fan Connection (J21) System Memory ROM BIOS Shadowing BIOS Recovery Interrupt and DMA Channel Usage Page Battery-Backed Clock Serial Ports I/O Addresses and Interrupt Assignments ROM-BIOS Installation of the Serial Ports Serial Port Connectors (J8, J11) Page Serial TTL Option Ampro Custom Serial Features Serial Console Features Using a Standard PC Keyboard Using Arrow Keys During Setup COM Port Table Universal Serial Bus (USB) Ports Infrared (IrDA) Interface Requirements for an IrDA Interface IrDA Connector (Part of Utility J19) Multi-Mode Parallel Port I/O Addresses and Interrupts ROM-BIOS Installation of Parallel Ports Page IEEE-1284-compliant Cables Latch-Up Protection Parallel Port Registers Standard and Bidirectional Operation Using the Parallel Port in Bidirectional Mode Using the Control Lines for Additional I/O Enabling the Parallel Port Interrupt Page Floppy Disk Interface Floppy Drive Considerations Floppy Interface Configuration Floppy Interface Connector (J14) EIDE Hard Disk Interface Pin # Signal Name Function Pin # Signal Name Function IDE Interface Configuration CompactFlash Solid-State Disk Enabling the Drive Master/Slave Setting Solid-State Disk Preparation Audio Interface Audio Amplifier Figure 2-4. Little Board P6d Audio Interface Adapter Audio Interface Connector Page 2-31 Figure 2-5. Audio Interface Adapter Schematic HEAD PHONE MIC IN PHONE IN SPEAKER OUT Flat Panel/CRT Video Controller Connecting a Flat Panel (J15) Power Sequencing Advanced Power Management BIOS Support of Standard Flat Panels Connecting a CRT (J17) ZV Port Interface (J16) Disabling the Video Controller Ethernet Network Interface Hardware Description Ethernet RJ45 Interface Connector (J13) Ethernet Interface Software Manufacturer's Ethernet ID Network Operating Systems Network OS Drivers Ethernet Setup Watchdog Timer Utility Connectors (J19) Pin # Signal Name Function Pin # Signal Name Function LED Connection Speaker Connections Push-button Reset Connection Keyboard Connection PS/2 Mouse Connection PC/104-Plus Expansion Bus On-board MiniModule Expansion Details Figure 2-6. Stacking PC/104 Modules on the Little Board P6d Module Using Standard PC and AT Bus Cards Expansion Bus Connector Pinouts Page Page 2-47 Table 2-45. PC/104-Plus Expansion Bus Connector, J3 (A1-D30) PinABCD Notes: Setup Setup Help Page Setup 1 Main Menu Figure 2-7. Setup 1 Main Menu Setup 2 Standard CMOS Setup Figure 2-8. Setup 2 Standard CMOS Setup EIDE Hard Disk Drives Drive Selection Floppy Drives Drive Parameter Setup Video Error Halt Setup 3 BIOS Features Setup Figure 2-9. Setup 3 BIOS Features Setup Serial Console Operation during SETUP. Setup 4 Chipset Features Setup Figure 2-10. Setup 4 Chipset Features Setup Setup 5 Power Management Setup Figure 2-11. Setup 5 Power Management Setup Page Setup 6 PCI Configuration Setup Figure 2-12. Setup 6 PCI Configuration Setup Setup 7 Integrated Peripherals Setup Figure 2-13. Setup 7 Integrated Peripherals Setup Panel # Panel Class Other Setup Screens Load Setup Defaults Screen Figure 2-15. IDE HDD Auto Detection Screen Figure 2-14. Load Setup Defaults Screen IDE HDD Auto Detection Screen Save & Exit Setup Screen Figure 2-16. Save & Exit Setup Screen Exit Without Saving Screen Figure 2-17. Exit Without Saving Screen Chapter 3 Technical Specifications Little Board P6d Technical Specifications CPU/Motherboard Embedded-PC System Enhancements On-board Peripherals Support Software Mechanical and Environmental Specifications Flat Panel Displays BIOS Modes 3-5 Table 3-1. Supported CRT Video ModesStandard VGA 3-6 Table 3-2. Supported CRT Video ModesLow Resolution Note: All modes in this table are Graphical and Linear, except where noted. 3-7 Table 3-3. Supported CRT Video ModesExtended Modes 3-8 Hardware IRQ Map Page Appendix A Standards Contact Information EPP and ECP Operation Page Page Page Index A B C D I J K L M T U V W