Little Board™/P5x P/N 5001351 Revision C 4757 Hellyer Avenue, San Jose, CA 95138 Phone: 408 360-0200, FAX: 408 360-0222, Web: www.ampro.
TRADEMARKS The Ampro logo is a registered trademark, and Ampro, Little Board, MiniModule, and CoreModule are trademarks of Ampro Computers, Inc. Pentium is a registered trademark of Intel, Incorporated. All other marks are the property of their respective companies.
Little Board/P5x Technical Manual Table of Contents Preface Introduction ..........................................................................................................................................vi Technical Support .................................................................................................................................vi Introduction General Description .................................................................................................................
Universal Serial Bus (USB) Ports ................................................................................................... 2–22 Infrared (IrDA) Interface................................................................................................................. 2–23 Requirements for an IrDA interface .......................................................................................... 2–23 IrDA Connector (Part of J24).......................................................................
Little Board/P5x Technical Manual Expansion Bus Connector Pinouts ............................................................................................ 2–55 PCI Bus (P21) Notes .................................................................................................................. 2–60 Setup ................................................................................................................................................ 2–62 Setup 1 — Main Menu ................................
Preface Introduction This manual is for integrators and programmers of systems based on the Ampro Little Board/P5x, a full-featured CPU module conforming to the EBX 1.1 technical specification. It contains technical information about hardware requirements, interconnection, and software configuration. Technical Support Ampro technical support for this product is available from 8:00 AM to 5:00 PM, Pacific Time, Monday through Friday.
Chapter 1 Introduction General Description The Little Board/P5x is a high integration, high-performance Pentium-based PC/AT-compatible system that conforms to the EBX V.1.1 specification. This rugged and high quality single-board system contains all the component subsystems of a PC/AT PCI motherboard plus the equivalent of up to six expansion boards. The Little Board/P5x is designed to meet the size, power consumption, temperature range, quality, and reliability demands of embedded system applications.
The Pentium CPU has its standard on-chip cache memory (typically 16K). In addition, a 512K byte synchronous-burst secondary cache is provided to increase performance. The board uses a single DIMM memory module for main DRAM memory, and supports from 16M bytes to 256M bytes in a 64-bit configuration. Both EDO and SDRAM 3.3V DRAM types are supported. (5V DRAMS, ECC, and DRAM parity are not supported.
Little Board/P5x Technical Manual be stacked directly on top of the Little Board/P5x using its PC/104-Plus expansion bus interface as a rugged and reliable interconnect. The Little Board/P5x module’s on-board EIDE, video interfaces, and optional SCSI interface are internally connected to its PCI bus. In addition, you can attach PCI peripherals to the board’s stackable PCI bus expansion connector in much the same way PC/104 modules are stacked on the PC/104 connectors.
specification and the ATAPI Specification. The Ampro Extended BIOS supports hard drives greater than 528M bytes through Logical Block Addressing (LBA). The Compact Flash interface is implemented as an IDE drive. If it is installed, it takes the position of one of the drives of the primary IDE interface (settable as a master or slave drive). PCI UltraSCSI Interface An PCI UltraSCSI controller subsystem is available by special order.
Little Board/P5x Technical Manual ! Standard Panel Support in the ROM BIOS. The on-board video BIOS supports up to 16 of the most popular flat-panel displays, selectable from Setup. ! Optional hardware modules may be installed. These include an optional NTSC/PAL module to allow direct connection of NTSC or PAL video inputs, an optional module supporting either PanelLink or LVDS adapter modules, an optional module to convert 3.3V signals to 5.
100 Hz to 1000 Hz). (Contact your Ampro sales representative to obtain Shock and Random Vibration Test Report for the Little Board/P5x CPU for details.) Software The vast array of commercial and public-domain software for the IBM PC and PC/AT is usable in Little Board/P5x-based systems. You can use the most popular software development tools (editors, compilers, debuggers, etc.) for developing code for your application.
Little Board/P5x Technical Manual 4-40 screws 0.6 inch spacers PC/104 Module PC/104 Plus Module Stackthrough Expansion Bus Headers PCI Stackthrough Headers Little Board/P5x 4-40 nuts Figure 1– 1. Stacking PC/104 Modules on the Little Board/P5x Using Standard PC and AT Bus Cards Ampro offers several options that allow you to add conventional 8-bit and 16-bit ISA expansion cards to the Little Board/P5x system. Contact Ampro for further information about optional bus expansion products.
Little Board/P5x Utility I/O Development Board To facilitate I/O connections to the Little Board/P5x utility connectors, Ampro provides the Little Board/P5x Utility I/O Development Board. It is included in the Development Platform Kit and the Quick Start Kit. The I/O Development Board provides connections for the USB ports, speaker, keyboard, front panel switches, external power supply connections, and so forth. S3 2.800 2,705 2.600 2.355 LO-BATT J5 S2 PWR LID 3.197 2.800 2.
Little Board/P5x Technical Manual Connector Name J5 Utility 1 Connect to LB/P5x Utility 1 (J16) J2 Mouse Plug in PS/2 Mouse J3 USB 1 Standard USB connector for USB 1 J4 USB 2 Standard USB connector for USB 2 J1 Utility 2 Connect to LB/P5x Utility 2 (J24) J6 Power Provides connections for -12V and -5V J7 Keyboard J8 Description Plug in a standard PS/2 Keyboard Reserved - do not use Table 1– 1.
J6 — Power If you connect J5 on the I/O board to J16 on the Little Board, you can use J6 to connect -5V and 12V power supplies to the Little Board. Table 1– 2 shows J6 wiring. J6 Pin Signal 1 -12 Volts 3 -5 Volts 2, 4 Ground Table 1– 2. J6 Power Wiring J7 — Keyboard If you connect J5 on the I/O board to J16 on the Little Board, you can use J7 to connect a PS/2 keyboard. J7 is a standard 5-pin DIN connector. Switch Descriptions (S1 – S4) There are four switches on the I/O Development Board.
Little Board/P5x Technical Manual Table 1– 3. I/O Development Board Switches Figure 1– 3 is a block diagram of the Little Board/P5x architecture. CPU Temp Memory Cache DRAM DIMM MTXC Serial EEPROM USB (2) PCI/120 Bus PIIX4 SCSI Video 100BaseT Ethernet PC/104 Bus IDE (4) Buffer Compact Flash Floppy Multi-I/O Parallel BIOS Serial 1, 2 RTC Keyboard Mouse Multi-I/O Serial 3, 4 Figure 1– 3.
Chapter 2 Product Reference Overview This chapter contains the technical information you will need to install and configure the Little Board/P5x.
Mounting Dimensions Figure 2– 1 shows the Little Board/P5x mounting dimensions. .162 .062 0 0 .360 .435 5.350 4.150 J16 J24 J30 1 5.800 J23 P2C P2D J21 5.700 J7 J22 1 1 1 6.350 J15 1 J11 J13 1 6.800 7.250 .125 HOLES, .250 PADS (8 Places) J9 J14 7.145 7.600 1 7.600 7.500 1 1 1 J10 J100 J17 J12 7.550 J20 7.800 3.950 3.750 3.000 2.400 1.550 0 .100 1.000 .900 .930 1 3.100 2.800 2.700 P1B P1A 2.650 2.500 J18 1 1.065 1.050 1 1.900 J19 1 .650 .404 .375 1 0.
Little Board/P5x Technical Manual Connector Summary Refer to Figure 2– 1 and Figure 2– 2 for the locations of the connectors (P1, P2, J3 – J21) and configuration jumpers (W1 – W12). Table 2– 1 summarizes the use of the I/O connectors. Each interface is described in its own section, showing connector pinouts, signal definitions, required mating connectors, and configuration jumper options. Many of the connectors have a key pin removed.
Table 2– 1. Connector Summary Connector Function Size Key Pin P1 A/B PC/104 Expansion Bus 64-Pin B10 P2 C/D PC/104 Expansion Bus 40-pin C19 J3 Flat Panel Video 50-pin None J4 Vee Bias Supply Connector 12-pin 3, 10 J5 CRT Video 10-pin None J6 Video ZOOM 26-pin None J7 Ethernet Twisted Pair RJ-45 Mechanical Key** J9 SCSI Interface 50-pin 25 J10 (J100) Power, +5V, +12V, +3.
Little Board/P5x Technical Manual Most I/O connectors are shrouded dual-row male headers for use with flat ribbon (IDC) female connectors and ribbon cable. Ampro recommends that you use “center-bump polarized” connectors to prevent accidentally installing cables backwards. Use non-strain-relief connectors to stay within the vertical height envelope shown in Figure 2– 1. If you use the recommended mating connectors, you can install retaining clips to secure a cable to its connector.
Figure 2– 2.
Little Board/P5x Technical Manual Jumper Summary Ampro installs option jumpers in default positions so that in most cases the Little Board/P5x requires no special jumpering for standard AT operation. You can connect the power and peripherals and operate it immediately. Jumper-pin arrays are designated W1, W2, and so forth. Jumper pins are spaced 2 mm apart. A square solder pad identifies pin 1 of each jumper array. Table 2– 2 is a summary of jumper use. Factory settings are shown in the Default column.
DC Power The power connector J10 is a 7-pin polarized connector. Refer to Table 2– 3 for power connections and Table 2– 4 for mating connector information. Caution Be sure the power plug is wired correctly before applying power to the board! See Table 2– 3. Table 2– 3. Power Connector (J10) Pin Signal Name Function 1, 7 +5VDC +5VDC ±5% input 2, 3, 6 Ground Ground return 4 +12VDC +12VDC ±5% input 5 +3.3VDC +3.3V ±5% input (Only required for some PCI expansion boards) Table 2– 4.
Little Board/P5x Technical Manual connector, J10. This will supply +12V to the ISA and PCI portions of the PC/104 expansion busses. Similarly, you can connect -12V and -5V to J16, the Utility Connector, to supply those voltages to both expansion busses. Pinouts for the Utility Connector are provided in Table 2- 45. If a PCI expansion card requiring 3.3V is installed, that voltage can be connected to J10-5 to supply power to J21, the PCI bus interface connector.
200 MMX 15.3 41.5 55.4 59.1 233 MMX 10.8 39.2 54.2 58.2 133 VRT 55.0 69.4 77.0 79.0 166 Tillamook 63.3 73.2 79.2 80.7 266 Tillamook 51.3 67.5 76.0 78.3 7.5 3.9 2.0 1.5 Thermal Resistance of a Typical .65” Heat Sink and Fan/Heatsink Combination Thermal Sensor A thermal sensor is attached to the board under the Pentium CPU. It senses when the CPU temperature exceeds its upper temperature threshold.
Little Board/P5x Technical Manual System Memory The module supports a single standard 64-bit DIMM position (168-pin) for the 64-bit data path to the Pentium processor. Both EDO and SDRAM memory types are supported. Buffered DRAM is not supported. You can install from 16M bytes to 256M bytes, depending on your memory needs. The ROM BIOS automatically detects the size of the installed memory module and configures the system accordingly at boot time. (No jumpering or manual configuration is required.
ROM substantially enhances system performance, especially when an application or operating system repeatedly accesses the BIOS. Shadowing for both the ROM BIOS and the 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/P5x 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 PGM5X.COM may be used to restore the BIOS image.
Little Board/P5x Technical Manual Table 2– 8.
Table 2– 9.
Little Board/P5x Technical Manual Battery-Backed Clock An AT-compatible battery-backed real-time clock (with CMOS RAM) is standard on the Little Board/P5x. A 3.0 volt Lithium battery soldered to the board powers the clock. Battery drain for the clock is less than 0.4 uA. This battery will support the clock for more than 10 years of normal usage. The factory initializes the real-time clock and various parameters in the configuration memory for a standard configuration.
ROM-BIOS Installation of the Serial Ports Normally, the ROM BIOS supports Serial 1 as the DOS COM1 device, Serial 2 as the DOS COM2 device, and so on. If you disable a serial port, and there is no substitute serial port in the system, then the ROM-BIOS assigns the COMn designations in sequence as it finds the serial ports, starting from the primary serial port and searching to the last one, Serial 4.
Little Board/P5x Technical Manual Table 2– 11.
variety of embedded applications requiring low-to-medium-speed data transfer between two or more systems. Note When you configure Serial 1 for RS-485, you cannot use the port for RS-232. Serial 1’s RS-485 interface appears on J20, a two-pin connector. The pinout for J20 is shown in Table 2– 13. Table 2– 14 shows a compatible mating connector to J20. Table 2– 13. Serial 1 RS-485 Connector (J20) J20 Pin Signal 1 -I/O 2 +I/O Table 2– 14.
Little Board/P5x Technical Manual Ampro Custom Serial Features The Ampro extended BIOS provides custom serial port features useful in embedded applications. ! The serial console feature enables you to operate the Little Board/P5x from a standard ASCII terminal, replacing the standard keyboard and display devices. See Serial Console Features, below, for a description of the serial console capabilities.
Note Some programs that emulate an ASCII terminal do not properly support the basic ASCII command functions shown in Table 2– 16. Ampro provides a suitable PC terminal emulator program, TVTERM, on the Common Utilities diskette. After booting this system, the keyboard and screen of the serial terminal become the system console. Note that the programs you execute via the serial terminal must use ROM BIOS video functions (rather than direct screen addressing) for their display I/O.
Little Board/P5x Technical Manual ports. With the port deleted from the COM port table, DOS cannot change its parameters. Because it is not listed in the BIOS COM port table, it is not assigned a COMn designation (COM1, COM2, etc.).
Universal Serial Bus (USB) Ports The Universal Serial Bus connects USB devices with a USB host, in this case, the Little Board/P5x. The USB physical interconnect is a tiered star topology, or tree, consisting of hubs and USB devices. Each USB segment is a point-to-point connection between hubs or between hubs and USB devices. The entire tree can support up to 127 USB devices. The USB interface standard is intended for keyboards, mice, modems, digitizer pads, and other low- to medium-speed peripherals.
Little Board/P5x Technical Manual Infrared (IrDA) Interface The Little Board/P5x infrared interface provides for a two-way wireless communications port using infrared as a transmission medium. The Little Board/P5x IrDA interface supports both SIR (Serial Infrared) and FIR (Fast Infrared) standards . The SIR standard allows serial communication at baud rates up to 115K Baud. The FIR standard allows data rates up to 4 Mbits/second.
This section lists the pinout of the parallel port connector and describes how to configure it for its I/O port and interrupt assignments, how to assign a DMA channel to the port when operating in ECP mode. And programming information, including how to use the port for bi-directional I/O. I/O Addresses and Interrupts The parallel port functions are controlled by eight I/O ports and their associated register and control functionality.
Little Board/P5x Technical Manual Parallel Port Connector (J15) The parallel port appears on J15. Its pinout on J15 is arranged so that a 26-pin ribbon cable attached to J15 can be directly connected to a 25-pin DB-25 connector to match the PC standard pinout. Table 2-21 shows the manufacturer’s part numbers for mating connectors. Table 2–22 gives the connector pinout and signal definitions for the parallel port.
Table 2–22.
Little Board/P5x Technical Manual Please refer to the IEEE-1284 standard for the complete list of requirements for a compliant cable assembly, including recommended connectors Latch-Up Protection The parallel port incorporates chip protection circuitry on some inputs, designed to minimize the possibility of CMOS “latch up” due to a printer or other peripheral being powered up while the Little Board/P5x is turned off.
;---------------------------------------------------------; Code to set the parallel port mode to bi-directional ;---------------------------------------------------------MOV AH,0CDh ; AMPRO command MOV AL,0Ch ; AMPRO function MOV BX,01h ; Extended mode (use 00 to set output-only mode) INT 13h Within bi-directional mode, the port can be in its input state or output state. The code shown above leaves the port in its input state. An IN instruction of I/O address 378h reads the current state of the data lines.
Little Board/P5x Technical Manual Table 2– 22 lists the parallel port register bits. Table 2– 22.
Parallel port register bit definitions (Table 2– 23): Table 2– 23. Standard and PS/2 Mode Register Bit Definitions 2–30 Signal Name Full Name TMOUT Time-out ERR* Error SLCT Printer selected status Reflects the status of the SLCT input. 1 means a printer is on-line. PE Paper end Reflects the status of the PE input. 1 indicates paper end. ACK* Acknowledge BUSY* Busy Reflects the complement of the BUSY input. 0 indicates a printer is busy.
Little Board/P5x Technical Manual Floppy Disk Interface The on-board floppy disk controller and ROM BIOS support one or two floppy disk drives in any of the standard DOS formats shown in Table 2– 24. Table 2– 24. Supported Floppy Formats Capacity Drive Size Tracks Data Rate 360K 5-1/4 inch 40 250 KHz 1.2M 5-1/4 inch 80 500 KHz 720K 3-1/2 inch 80 250 KHz 1.
Floppy Interface Connector (J14) Table 2– 25 shows the pinout and signal definitions of the floppy disk interface connector, J14. The pinout of J14 meets the AT standard for floppy drive cables. Table 2– 26 shows the manufacturer’s part numbers for mating connectors. Table 2– 25.
Little Board/P5x Technical Manual EIDE Hard Disk Interface The Little Board/P5x provides an interface for up to four Integrated Device Electronics (IDE) peripheral devices, such as hard disk drives and CD-ROM drives. ! The primary IDE interface appears at connector J12, a 40-pin, dual-row connector. ! The secondary IDE interface appears at connector J17, also a 40-pin, dual-row connector. Table 2– 27 shows the interface signals and pin outs for the IDE interface connectors.
Table 2– 27.
Little Board/P5x Technical Manual Table 2– 27 (cont.). IDE Interface Connectors (J12, J17) Pin Signal Name Function In/Out 30 GND Ground OUT 31 HOST IRQ14 Drive interrupt request IN 32 IDE16 IOCS16 OUT 33 HOST A1 Drive address 1 OUT 34 RSVD Reserved N/C 35 HOST A0 Drive address 0 OUT 36 HOST A2 Drive address 2 OUT 37 HOST CS0* Chip select OUT 38 HOST CS1* Chip select OUT 39 RSVD Reserved N/C 40 GND Ground OUT Table 2– 30.
Enabling the Drive The Compact Flash interface emulates an IDE drive to the operating system. Note that the Compact Flash interface takes up one of the positions of the primary IDE drive controller. If you use the Compact Flash interface, you can only add one additional hard drive to the primary IDE controller. Master/Slave Setting The Compact Flash interface can be configured to emulate a master or slave IDE device in the system. ! To configure the drive as master, install a jumper on W12.
Little Board/P5x Technical Manual Table 2– 31.
External Termination Power Option You can power external SCSI terminations from the Little Board/P5x. A jumper option, W2, connects power (+5V) to the SCSI bus TERMPWR signal (J9, pin 26). The board includes a Schottky protection diode to prevent damage to the board by current flowing from the SCSI bus and a selfresetting fuse to prevent damage to the board should the output become shorted. The fuse resets automatically when the short is removed.
Little Board/P5x Technical Manual Flat Panel/CRT Video Controller The Little Board/P5x provides an integrated high-performance super-VGA video controller. The video controller supports both CRT and flat panel displays. The standard video controller supports only 3.3V video panels. (You can order an adapter to convert the 3.3V signals to 5V for 5V panels.) There are five connectors associated with the video display. These connectors are summarized in Table 2– 29.
Table 2– 30 lists the signals available on connector J3. Table 2– 31 shows compatible mating connectors to J3. Table 2– 30. Flat Panel Video Connector (J3) Pin Signal Name 2, 34, 37 +3.3V Panel power 3 +12V +12 Volt supply (from J10) 5 ShfClk Shift Clock. Pixel clock for flat panel data. 7 M DE M signal for panel AC drive control. Sometimes called ACDCLK or AC Drive. May also be configured to be -BLANK or as Display Enable (DE) for TFT panels. 9 LP Latch Pulse.
Little Board/P5x Technical Manual Table 2– 31. J3 Mating Connectors Connector Type RIBBON DISCRETE WIRE Mating Connector 3M 4325-7600 MOLEX HOUSING 55-22-2502 PIN 16-02-0103 The flat-panel video controller supports LCD panels that require up to 36 data bits. J3 supplies the lower 24 data bits (FP0 - FP23), and connector J25 has the additional 12 bits. Table 2– 32 lists the signals available on connector J25, and Table 2– 33 shows J25 mating connectors. Table 2– 32.
Advanced Power Management The same signals that support power sequencing are also used to provide the power management feature. In “panel off mode” both the CRT and flat-panel interfaces are turned off, but the VGA subsystem (registers and display memory) remain powered. In “standby mode”, the CRT and flatpanel interfaces are turned off, and in addition, the VGA subsystem is turned off. The screen DRAM is placed in a low-power mode in which only the DRAM is refreshed.
Little Board/P5x Technical Manual Table 2– 34. LCD Bias Supply Option Connector (J4) J4 Pin J3 Pin Description 1 Ground 2 +5V to the Vee Supply Option board 4 Ground 6 38 8 Enable Vee — TTL control signal, driven by the VGA controller chip Ground 11 46 Vee Output, to panel 12 47 Contrast adjustment — analog control signal Selecting Vee Polarity Most LCD displays require a Vee supply of between 15V and 35V. Some panels need a negative supply, and some a positive supply.
To use an external potentiometer, remove the jumper from W2, and connect a circuit as shown in Figure 2– 4 between J3-47 and ground. Rb Ra External Contrast Control Ground J3-47 Figure 2– 4. External Contrast Adjustment for LCD panels Select Ra and Rb to provide the appropriate voltage range adjustment for the LCD panel you are using. Consult your panel’s technical literature for the range of voltages you need to supply for the contrast adjustment.
Little Board/P5x Technical Manual Table 2– 35 gives the signal pinout of J5 and pin connections for a DB-15 connector. Table 2– 40 shows J5 mating connectors. Table 2– 35. CRT Interface Connector (J5) Pin Signal Name DB-15 1 Red 1 2 Ground 6 3 Green 2 4 Ground 7 5 Blue 3 6 Ground 8 7 Horizontal Sync. 13 8 Ground 10 9 Vertical Sync. 14 10 +5V Power - Table 2– 40.
J6 is a high density connector with 2mm pitch pins. Table 2– 41 lists the signals and pin numbers for J6 and Table 2– 42 lists a compatible mating connector. Table 2– 41. ZV Port Connector (J6) J6 Pin Name Function 1 - 16 VP0 - VP15 Video Data Inputs 18 VREF Vertical Reference Input 20 HREF Horizontal Reference Input 22 RSVD Reserved 24 PCCK PC 26 PCLK Video Clock Output (DCLK or DCLK/2) 17, 19, 21,23, 25 Ground Table 2– 42.
Little Board/P5x Technical Manual Ethernet Network Interface This section describes the hardware of the Ethernet interface and discusses relevant software considerations. Hardware Description The Ethernet subsystem is based on the AMD Am79C972 PCnet™ Fast+ Enhanced 10/100 PCI Ethernet Controller coupled with a Level 1, Inc. LXT970a dual-speed fast Ethernet transceiver. The Ethernet controller fully supports IEEE 802.
Network Operating Systems The Ethernet interface is typically connected in a network controlled by a network operating system. The network operating system may be part of the computer's operating system or be provided separately. For example, Windows® NT provides the network operating system as part of computer's operating system. Novell's NetWare™ provides a separate, add-on network operating system for DOS and Windows.
Little Board/P5x Technical Manual ! If you plan to boot from the network (that is, if you plan to use the Little Board/P5x as a diskless peripheral or workstation), set up an Ethernet boot PROM. See the section, “Setting up a Boot PROM”, below, for details. ! Install the proper driver for the network operating system you will be running. Follow AMD’s instructions for installing your PCnet driver.
Watchdog Timer The purpose of a watchdog timer function is to restart the system should some mishap occur. Possible problems include: a failure to boot properly; the application software losing control; temporary power supply problems including spikes, surges, or interference; the failure of an interface device; unexpected conditions on the bus; or other hardware or software malfunctions. The watchdog timer helps assure proper start-up after an interruption.
Little Board/P5x Technical Manual Utility Connectors (J16, J24) Seven functions appear on Utility 1, a 16-pin connector at J16. These are: ! Auxiliary power connections ! Power indicator LED ! PC speaker ! Push-button reset switch ! Keyboard interface ! External back-up battery Table 2– 38 shows the pinout and signal definitions of the Utility Connector.
Table 2– 39. J16 Mating Connector Connector Type RIBBON Mating Connector 3M 3452-7600 Latching Clip 3505-8016 DISCRETE WIRE MOLEX Housing 22-55-2162 Pin 16-02-0103 LED Connection To connect an external LED power-on indication lamp, connect the LED anode to J16-5 and the cathode to ground. J16-5 provides +5V through a 300 ohm resistor. Speaker Connections The board supplies about 100 mW for a speaker on J16-7. Connect the other side of the speaker to ground (J16-8).
Little Board/P5x Technical Manual Utility 2 Connector (J24) Utility 2, a 24-pin connector at J24 provides the following connections: ! LIDSW – Simulates the lid switch on a laptop ! PWRBT – Turns off all but minimum power ! BATLOW – Simulates a low battery ! IrDA Interface – Infra-red serial interface signals ! PS/2 Mouse Port ! Universal Serial Bus (USB) Interfaces The signals on the Utility 2 connector are shown in Table 2– 48. Table 2– 40 shows compatible mating connectors. Table 2– 48.
PC/104-Plus EXPANSION BUS The PC/104-Plus expansion bus appears on three header connectors, P1, P2, and J21. P1 is a 64-pin female dual-row header. P2 is a 40-pin female dual-row header, and J21 is a 120-pin 2mm female quad-row header (4 x 30). The PC-bus subset of the PC/104-Plus expansion bus connects to P1. The AT expansion bus signals connect to P2. The layout of signals on P1 and P2 is compliant with the PC/104 bus specification, and make up the ISA bus portion of the PC/104-Plus bus.
Little Board/P5x Technical Manual Using Standard PC and AT Bus Cards Ampro offers several options that allow you to add conventional 8-bit and 16-bit ISA expansion cards to the Little Board/P5x system. Contact Ampro for further information about optional bus expansion products. Expansion Bus Connector Pinouts Table 2– 50 through Table 2– 54 show the pinout and signal functions on the PC/104-Pluscompatible expansion bus connectors. These include P1, P2, and J21.
Table 2– 50.
Little Board/P5x Technical Manual Table 2– 51.
Table 2– 52.
Little Board/P5x Technical Manual Table 2– 53.
Table 2– 54. PC/104-Plus Expansion Bus Connector, P21 (A1-D30) Pin A B C D 1 GND/5.0V KEY Reserved +5 AD00 2 VI/O (+5V) AD02 AD01 +5V 3 AD05 GND AD04 AD03 4 C/BE0* AD07 GND AD06 5 GND AD09 AD08 GND 6 AD11 VI/O (+5V) AD10 M66EN 7 AD14 AD13 GND AD12 8 +3.3V C/BE1* AD15 +3.3V 9 SERR* GND SB0* PAR 10 GND PERR* +3.3V SDONE 11 STOP* +3.3V LOCK* GND 12 +3.3V TRDY* GND DEVSEL* 13 FRAME* GND IRDY* +3.3V 14 GND AD16 +3.3V C/BE2* 15 AD18 +3.
Little Board/P5x Technical Manual 2. The shaded cells in the table denote unsupported signals. 3. The KEY pins are to guarantee proper module installation. Pin-A1 will be removed and the female side plugged for 5.0V I/O signals and Pin-D30 will be modified in the same manner for 3.3V I/O. Both pins will be removed for 3.3/5.0 operation.
Setup Many options provided on the Little Board/P5x are controlled by the Setup function. The parameters are displayed on several screens, selected from a main menu screen. To configure the board, you modify the fields in these screens and save the results in the on-board configuration memory. The configuration memory consists of portions of the CMOS RAM in the battery-backed real-time clock chip and an Ampro-unique configuration EEPROM.
Little Board/P5x Technical Manual Table 2– 41 (cont.).
Setup 1 — Main Menu The first Setup page contains a menu for accessing several Setup screens, plus several additional parameters. Figure 2– 6 shows Setup page 1. Sections following the figure describe each option. CMOS SETUP UTILITY Ampro Computers, Inc.
Little Board/P5x Technical Manual Setup 2 — Standard CMOS Setup Use Setup 2 to set the date and time, configure your hard and floppy disks, and report system memory. Figure 2– 7 shows what can be configured on Setup 2, and the sections that follow describe each parameter. STANDARD CMOS Setup Ampro Computers, Inc.
EIDE Hard Disk Drives The module supports up to two hard disk drives connected to the IDE interface. Only hard disk drives are directly supported in the system’s ROM BIOS. IDE CD-ROM drives and other IDEinterfaced peripherals are configured by software or drivers supplied separately. Physical drives can have one or more logical partitions. You can install up to eight logical drives using drive partitions.
Little Board/P5x Technical Manual Once you have set the system’s configuration memory, the IDE drive(s) can be formatted and otherwise prepared normally. Refer to your operating system and disk drive documentation for specific procedures and requirements. Floppy Drives The ROM BIOS supports all of the popular DOS-compatible floppy disk formats. This includes all the 5-1/4 inch and 3-1/2 inch floppy formats — 360K, 720K, 1.2M, and 1.44M.
Setup 3 — BIOS Features Setup Use Setup 3 to set a variety of BIOS feature options. Figure 2– 8 shows what can be configured on Setup 3, and the sections that follow describe each parameter. BIOS FEATURES Setup Ampro Computers, Inc.
Little Board/P5x Technical Manual ! Boot Up NumLock Status — sets the default state of the keyboard’s numeric keypad. On sets the keypad to numbers, Off sets the keypad to arrows. ! Typematic Rate Setting — enable or disable the typematic function (automatic keyboard key repeat). ! Typematic Rate (chars/S) — set the typematic rate. This is the rate at which a held-down key is repeated. ! Typematic Delay (mS) — set the time a key must be pressed before typematic repeating begins.
Function Keys — function keys (F1, F2, etc.) are entered with two keystrokes. The first entry is “F”, followed by the number. F10 is simulated by typing “F” and then “0”. The WordStar diamond keys are also implemented identical to the MS-DOS editor. ! Ctrl-e = cursor up ! Ctrl-x = cursor down ! Ctrl-d = cursor right ! Ctrl-s = cursor left ! Ctrl-r = page up ! Ctrl-c = page down. Note that these keystrokes simulate the function keys only during Setup, not during normal computer operation.
Little Board/P5x Technical Manual Setup 4 — Chipset Features Setup Setup 4 — Chipset Features Setup controls internal chipset features. The OEM or end user should never change many of these items, as they specify internal parameters that have been chosen to support the existing motherboard design. Change these parameters only if directed to by Ampro Technical Support. Figure 2– 9 shows what can be configured on Setup 4. The items that can be changed by the OEM are listed below.
! PCI 2.1 Compliance — this parameter controls the timing of certain PCI bus transactions. Select Enabled only if all PCI devices in the system are known to be compliant with Version 2.1 of the PCI specification. ! Turn on CPU Fan — The fan interface is controlled by an external temperature monitor physically located below the CPU. “Current CPU Temperature:” displays a calculated value. The temperature difference between the monitor and the CPU was measured at 5°C.
Little Board/P5x Technical Manual Setup 5 — Power Management Setup The Little Board/P5x CPU BIOS incorporates power management features compliant with Advanced Power Management (APM) BIOS Interface Specification Revision 1.1, created by Intel and Microsoft. Setup 5 — Power Management Setup allows you to configure your system to most effectively save energy while operating at the speed and response level you need in your application. Figure 2– 10 shows what can be configured on Setup 5.
! PM Control by APM — when enabled, it allows operating systems with power management support to control the modes required for safe operation of shutdown occurrences. ! Video Off Option — sets the conditions under which the BIOS powers down the video (assuming your video interface supports power management). Select the DPMS option only if your monitor supports the VESA Display Power Management Signaling standard.
Little Board/P5x Technical Manual Setup 6 — PCI Configuration Setup The Little Board/P5x CPU BIOS incorporates automatic PCI IRQ configuration for peripherals. You can, however, override the automatic features and specify PCI IRQ settings with SETUP 6. Figure 2– 11 shows what can be configured on SETUP 6. A description of each option is listed below. PCI CONFIGURATION SETUP Ampro Computers, Inc.
Setup 7 — Integrated Peripherals Setup The peripheral interfaces integrated on the Little Board/P5x can be configured on Setup 7 — Integrated Peripherals Setup (Figure 2– 12). You can configure the IDE port, USB port, floppy controller, IrDA port, serial ports, and parallel port from this screen. INTEGRATED PERIPHERALS SETUP Ampro Computers, Inc.
Little Board/P5x Technical Manual ! UART2 Mode — configures the second serial port to be a standard serial port or for one of the IrDA modes. Enabling one of the IrDA modes provides access to the IR configuration parameters. Available IrDA modes are HPSIR (standard IrDA), ASKIR (amplitude shift keyed infrared), fast IR, or TTL. ! Onboard Parallel Port — set the parallel port address and IRQ assignments. Available addresses are 378, 278, or 3BC. Available IRQ assignments are IRQ 7 and IRQ5.
Chapter 3 Technical Specifications Little Board/P5x SPECIFICATIONS The following section provides technical specifications for the Little Board/P5x. CPU/Motherboard ! CPU: Pentium processor ! System RAM: − DIMM module, utilizing 3.
− ! ! 512 bits available for OEM use Watchdog Timer − Selectable Timeout: 30 seconds / 60 seconds / 90 seconds / Disabled − Timeout triggers hardware reset Powerfail NMI triggers when +5 Volt power drops below +4.7 Volts. On-board Peripherals This section describes standard peripherals found on every Little Board/P5x.
Little Board/P5x Technical Manual ! ! − Supports UltraSCSI data transfers at up to 20 MB/sec − On-board active terminators for low current drain − Built-in Adaptec SCSI-BIOS − Compatible with standard SCSI driver products that are ASPI-compatible PCI Flat Panel/CRT Video Controller − Supports CRT, LCD, and video (NTSC, PAL) displays − Uses state-of-the-art Chips and Technologies HiQVideo™ Multimedia Accelerator chips − On-board display RAM: 2M bytes SDRAM standard, 4M bytes by special order.
Support Software ! Ampro embedded PC-BIOS features: − Watchdog timer (WDT) support − Fast boot options − Fail-safe boot logic − Battery-free boot − Serial console option − Serial loader option − EEPROM access functions − Advanced Power Management (APM) support − Large hard disk Logical Block Addressing (LBA) support See the Ampro Embedded-PC BIOS data sheet for additional details about these features.
Little Board/P5x Technical Manual Table 3– 1. Power Requirements DOS Prompt EDO DRAM Amps / Watts Maximum EDO DRAM Amps / Watts DOS Prompt SDRAM Amps / Watts Maximum SDRAM Amps / Watts 166MHz Tillamook 1.963 /9.815 2.105 / 10.525 2.080 / 10.401 2.173 / 10.864 266MHz Tillamook 2.242 / 11.204 2.352 / 11.759 2.346 / 11.728 2.370 / 11.
Note Panel technology is changing rapidly. Flat panel support in the Little Board/P5x ROM BIOS will change from time to time to maintain compatibility with current panel technology. Table 3– 2.
Little Board/P5x Technical Manual Table 3– 3. Supported CRT Video Modes—Standard VGA Mode Display Mode Colors Text Font Pixels Clock (MHz) Horiz (KHz) Vert (Hz) 0+, 1+ Text 16 40x25 9x16 360x400 28.322 31.5 70 40x25 8x14 320x350 25.175 40x25 8x8 320x200 25.175 80x25 9x16 720x400 28.322 31.5 70 80x25 8x14 640x350 25.175 80x25 8x8 640x200 25.175 2+, 3+ Text 16 4 Graphics 4 40x25 8x8 320x200 25.175 31.5 70 5 Graphics 4 40x25 8x8 320x200 25.175 31.
Table 3– 4. Supported CRT Video Modes—Standard VGA (Cont.) Mode Display Mode Colors Text Font Pixels Clock (MHz) Horiz (KHz) Vert (Hz) E Planar 16 80x25 8x8 640x200 25.175 31.5 70 F Planar Mono 80x25 8x14 640x350 25.175 31.5 70 10 Planar 16 80x25 8x14 640x350 25.175 31.5 70 11 Planar 2 80x30 8x16 640x480 25.175 31.5 60 12 Planar 16 80x30 8x16 640x480 25.175 31.5 60 13 Packed Pixel 256 40x25 8x8 320x200 25.175 31.
Little Board/P5x Technical Manual Table 3– 5. Supported CRT Video Modes—Extended Resolution Mode Display Mode Colors Text Font Pixels Clock (MHz) Horiz (KHz) Vert (Hz) Mem. CRT 20 4-bit Linear 16 80x30 8x16 640x480 25.175 31.5 60 512K a, b, c 22 4-bit Linear 16 100x37 8x16 800x600 40.000 37.5 60 512K b,c 24 4-bit Linear 16 128x48 8x16 1024x768 65.000 48.5 60 512K c 44.900 35.5 43 512K b,c 24I 30 8-bit Linear 256 80x30 8x16 640x480 25.175 31.
Table 3– 6. Supported CRT Video Modes—High Refresh Mode Display Mode Colors Text Font Pixels Clock (MHz) Horiz (KHz) Vert (Hz) Mem. CRT 12 Planar 16 80x30 8x16 640x480 31.500 37.5 75 256K b, c 30 8-bit Linear 256 80x30 8x16 640x480 31.500 37.5 75 256K c 79 Packed Pixel 256 80x30 8x16 640x480 31.500 37.5 75 512K c 6A,70 Planar 16 100x37 8x16 800x600 49.500 46.9 75 512K c 32 8-bit Linear 256 100x37 8x16 800x600 49.500 46.
Little Board/P5x Technical Manual Ampro Product Reliability Testing Regulatory testing Knowing that many embedded systems must qualify under EMC emissions and suscepibility testing, Ampro designs boards with careful attention to EMI issues. Boards are tested in standard enclosures to ensure that they can pass such emissions tests. Tests include European Union Directives EN55022 and EN55011 (for EMC), EN61000-4-2 (for ESD), ENV50140 (for RF Susceptibility), and EN61000-4-4 (for EFT).
Appendix A Contacts To contact the PC/104 Consortium for a copy of the proposed PC/104-Plus specification: PC/104 Consortium 849 Independence Avenue, Suite B Mountain View, CA 94043 Telephone: 415 903-8304 FAX: 415 967-0995 EPP and ECP Operation The board’s parallel port is compliant with the IEEE-1284 Extended Capabilities Port Protocol and ISA Standard (Rev 1.09, January 7, 1993), developed by Microsoft. Contact IEEE Customer Service and request IEEE Std 1284 for information about EPP and ECP operation.
Appendix B Cables Cables included in the Quick Start Kit (LB3-P5X-K-00) and the Cable Kit (CBL-P5X-Q-01) are detailed in this section. These cables are intended for use during your application development, and are only shown here to aid you in the design of cables for your particular application.
B–2
Little Board/P5x Technical Manual B–3
0800805 B–4
Little Board/P5x Technical Manual 0800805 B–5
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0800575 A Little Board/P5x Technical Manual B–7
Index backspace, serial console, 2-21 battery, 2-9 Battery-backed clock, 2-15 block diagram, 1-11 boot PROM, Ethernet, 2-50 Boot PROM, Ethernet, 2-50 LCD bias supply (J4), 2-44 PC/104 expansion bus, 2-57 Power (J10), 2-8 SCSI (J9), 2-38 Serial ports (J11, J13), 2-18 Utility (J16), 2-52 Utility2 (J24), 2-54 connector locations, 2-6 connector usage summary, 2-4 Contrast, flat panel, 2-44 cooling, CPU, 2-9 CPU, 1-1 CPU, cooling, 2-9 CRT connector (J5), 2-46 CRT video modes, 3-7 CTL-ALT-DEL, 2-63 cursor comma
Little Board/P5x Technical Manual expansion bus, 1-2 Expansion bus, 2-55 External Video Overlay Connector (J6), 2-47 F fast IR, 2-24 FIR, 2-24 Flat panel contrast, 2-44 Flat panel displays, 3-5 Flat panel video, 2-40 Flat Panel Video Connector (J3), 2-41, 242 Floppy connector (J14), 2-33 floppy disk setup, 2-66 floppy drives, 2-68 Floppy drives, 2-32 floppy interface, 1-3 Floppy interface, 2-32 FTP, Ampro, vi H Halt On ...
Little Board/P5x Technical Manual power, DC, 2-8 Powerfail NMI, 2-9 Printer port, 2-25 Pushbutton reset, 2-53 R real-time clock, 2-9 Real-time clock, 2-15 regulatory testing, 1-5, 3-11 Reset, pushbutton, 2-53 S SCSI connector (J9), 2-38 SCSI interface, 1-4, 2-38 Serial boot, 2-20 serial console, 2-20 Serial console, 2-70 serial console COM port table, 2-22 Serial downloading, 2-20, 2-70 serial port, 1-3, 2-16 Serial port connectors (J11, J13), 2-18 setup, 2-63 page 1, main menu, 2-65 page 2, standard CMOS
