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Reference Manual DOC. REV. 12/6/2013 Iguana (VL-EPIC-25) Intel® Atom-based SBC with Ethernet, SATA, USB, eUSB, CompactFlash, mS

Introduction VL-EPIC-25 Reference Manual 4 Thermal Considerations CPU DIE TEMPERATURE The CPU die temperature is affected by numerous conditions, suc

Introduction VL-EPIC-25 Reference Manual 5 RoHS Compliance The Iguana is RoHS-compliant. ABOUT ROHS In 2003, the European Union issued Directive 20

Introduction VL-EPIC-25 Reference Manual 6 HANDLING CARE Warning! Care must be taken when handling the board not to touch the exposed circuitry with

Introduction VL-EPIC-25 Reference Manual 7 Non-warranty Repair All approved non-warranty repairs are subject to diagnosis and labor charges, parts c

VL-EPIC-25 Reference Manual 8 Configuration and Setup Initial Configuration The following components are recommended for a typical development syste

Configuration and Setup VL-EPIC-25 Reference Manual 9 Figure 1. Typical Start-up Configuration 1. Install Memory  Insert a DDR3 DRAM module into S

Configuration and Setup VL-EPIC-25 Reference Manual 10  Plug the VL-CBR-5013A cable into the user I/O connector (J19) on the Iguana and the VL-CBR-

VL-EPIC-25 Reference Manual 11 Physical Details Dimensions and Mounting IGUANA DIMENSIONS The VL-EPIC-25 complies with EPIC dimensional standards. D

Physical Details VL-EPIC-25 Reference Manual 12 VL-CBR-5013 DIMENSIONS Figure 3. VL-CBR-5013 Dimensions and Mounting Holes (Not to scale. All dime

Physical Details VL-EPIC-25 Reference Manual 13 VL-CBR-4004 DIMENSIONS Figure 4. VL-CBR-4004 Dimensions and Mounting Holes (Not to scale. All dimen

VL-EPIC-25 Reference Manual ii WWW.VERSALOGIC.COM 12100 SW Tualatin Road Tualatin, OR 97062-7341 (503) 747-2261 Fax (9

Physical Details VL-EPIC-25 Reference Manual 14 HARDWARE ASSEMBLY The Iguana uses PC/104 and PC/104-Plus connectors so that expansion modules can be

Physical Details VL-EPIC-25 Reference Manual 15 External Connectors IGUANA CONNECTOR LOCATIONS – TOP Figure 6. Connector Locations (Top) J27 - SPX J

Physical Details VL-EPIC-25 Reference Manual 16 IGUANA CONNECTOR LOCATIONS – BOTTOM Figure 7. Connector Locations (Bottom) J9 CompactFlash J1 SODI

Physical Details VL-EPIC-25 Reference Manual 17 IGUANA CONNECTOR FUNCTIONS AND INTERFACE CABLES Table 1 provides information about the function, mati

Physical Details VL-EPIC-25 Reference Manual 18 VL-CBR-5013 CONNECTOR LOCATIONS Figure 8. VL-CBR-5013 Connector Locations VL-CBR-5013 CONNECTOR FUNC

Physical Details VL-EPIC-25 Reference Manual 19 VL-CBR-4004 CONNECTOR LOCATIONS Figure 9. VL-CBR-4004 Connectors 2 1 40 39 J1 J2

Physical Details VL-EPIC-25 Reference Manual 20 Jumper Blocks JUMPERS AS-SHIPPED CONFIGURATION Figure 10. Jumper Block Locations V4 V5 V1 V1 V7 V

Physical Details VL-EPIC-25 Reference Manual 21 JUMPER SUMMARY Table 3: Jumper Summary Jumper Block Description As Shipped Page V1[1-2-3] Factory U

VL-EPIC-25 Reference Manual 22 System Features Power Supply POWER CONNECTORS Main power is applied to the Iguana through an EPIC-style 10-pin polari

System Features VL-EPIC-25 Reference Manual 23 POWER DELIVERY CONSIDERATIONS Using the VersaLogic approved power supply (VL-PS200-ATX) and power cabl

VL-EPIC-25 Reference Manual iii Product Revision Notes Revsion 1.00 – Commercial release. Support The Iguana support page, at http://www.versalo

System Features VL-EPIC-25 Reference Manual 24 Figure 11. Battery Life vs. Storage Temperature CPU Intel® Atom™ D425 and D525 processors include the

System Features VL-EPIC-25 Reference Manual 25 System RAM The Iguana accepts one 204-pin DDR3 SO-DIMM memory module with the following characteristic

System Features VL-EPIC-25 Reference Manual 26 CLEARING THE REAL-TIME CLOCK You can move the V3 jumper to position [2-3] for a minimum of two seconds

VL-EPIC-25 Reference Manual 27 Interfaces and Connectors Expansion Buses Note Some information in this section may change as the BIOS continues in

Interfaces and Connectors VL-EPIC-25 Reference Manual 28 PC/104 I/O SUPPORT The following I/O ranges are available on the ISA bus unless there is a d

Interfaces and Connectors VL-EPIC-25 Reference Manual 29 Ethernet Interface The Iguana features two on-board Intel 82574IT Gigabit Ethernet controlle

Interfaces and Connectors VL-EPIC-25 Reference Manual 30 STATUS LED Connector J28 provides an additional on-board Ethernet status LED interface. The

Interfaces and Connectors VL-EPIC-25 Reference Manual 31 Serial Ports The Iguana features four on-board 16550-based serial communications channels lo

Interfaces and Connectors VL-EPIC-25 Reference Manual 32 SERIAL PORT CONNECTORS The pinouts of the DB9M connectors apply to the serial connectors on

Interfaces and Connectors VL-EPIC-25 Reference Manual 33 Flash Interfaces COMPACTFLASH Connector J9 provides a socket for a Type I or Type II Compact

VL-EPIC-25 Reference Manual iv Contents Introduction ...

Interfaces and Connectors VL-EPIC-25 Reference Manual 34 The VL-MPEs-F1E series of mSATA modules provide flash storage of 4 GB, 16 GB, or 32 GB. To s

Interfaces and Connectors VL-EPIC-25 Reference Manual 35 J13 Pin PCIe Mini Card Signal Name PCIe Mini Card Function mSATA Signal Name mSATA Func

Interfaces and Connectors VL-EPIC-25 Reference Manual 36 Video An on-board video controller integrated into the chipset provides high-performance vid

Interfaces and Connectors VL-EPIC-25 Reference Manual 37 LVDS FLAT PANEL DISPLAY CONNECTOR The integrated LVDS Flat Panel Display in the VL-EPIC-25 i

Interfaces and Connectors VL-EPIC-25 Reference Manual 38 Audio The audio interface on the Iguana is implemented using an Integrated Device Technology

Interfaces and Connectors VL-EPIC-25 Reference Manual 39 User I/O Connector The 50-pin user I/O connector (J19) incorporates the COM ports, four USB

Interfaces and Connectors VL-EPIC-25 Reference Manual 40 Pushbutton Reset Connector J19 includes an input for a pushbutton reset switch. Shorting J19

Interfaces and Connectors VL-EPIC-25 Reference Manual 41 External Speaker Connector J19 includes a speaker output signal at pin 39. The VL-CBR-5013 b

Interfaces and Connectors VL-EPIC-25 Reference Manual 42 Digital I/O The 40-pin I/O connector (J25) incorporates 16 digital I/O lines. Table 17 shows

Interfaces and Connectors VL-EPIC-25 Reference Manual 43 Digital I/O Interrupt Generation Using the SPI Interface Digital I/O can be configured to is

Contents VL-EPIC-25 Reference Manual v Power Requirements ...

Interfaces and Connectors VL-EPIC-25 Reference Manual 44 MOV DX, CA8h MOV AL, 26h ;SPICONTROL: SPI Mode 00, 24bit, SPI 6 OUT DX,

Interfaces and Connectors VL-EPIC-25 Reference Manual 45 '================================ 'SPICONTROL1 Register '-------------------

Interfaces and Connectors VL-EPIC-25 Reference Manual 46 'INITIALIZE DIRECTION OF DIO LINES D15-D8 AS INPUTS '=============================

Interfaces and Connectors VL-EPIC-25 Reference Manual 47 Analog Input The Iguana uses a multi-range, 12-bit Linear Technology LTC1857 A/D converter w

Interfaces and Connectors VL-EPIC-25 Reference Manual 48 Initiating an Analog Conversion Using the SPI Interface The following procedure can be used

Interfaces and Connectors VL-EPIC-25 Reference Manual 49 Analog Output The Iguana uses a 12-bit Linear Technology LTC2634 D/A converter with four (4

Interfaces and Connectors VL-EPIC-25 Reference Manual 50 Counter / Timers The Iguana includes two uncommitted 8254 type counter/timer channels for ge

Interfaces and Connectors VL-EPIC-25 Reference Manual 51 SPX Up to four serial peripheral expansion (SPX) devices can be attached to the Iguana at co

Interfaces and Connectors VL-EPIC-25 Reference Manual 52 VERSALOGIC SPX EXPANSION MODULES VersaLogic offers a number of SPX modules that provide a va

Interfaces and Connectors VL-EPIC-25 Reference Manual 53 SPI REGISTERS A set of control and data registers are available for SPI transactions. The fo

Contents VL-EPIC-25 Reference Manual vi Analog Input Using the SPI Interface ...

Interfaces and Connectors VL-EPIC-25 Reference Manual 54 SPISTATUS (READ/WRITE) CA9h D7 D6 D5 D4 D3 D2 D1 D0 IRQSEL1 IRQSEL0 SPICLK1 SPICLK0 HW_IRQ_E

Interfaces and Connectors VL-EPIC-25 Reference Manual 55 SPIDATA0 (READ/WRITE) CAAh D7 D6 D5 D4 D3 D2 D1 D0 MSbit LSbit SPIDATA1 (READ/WRITE)

VL-EPIC-25 Reference Manual 56 System Resources and Maps Legacy Memory Map The lower 1 MB memory map of the Iguana is arranged as shown in the follo

VL-EPIC-25 Reference Manual 57 Special Registers PLED and Product Code Register PLEDPC (Read/Write) CA0h D7 D6 D5 D4 D3 D2 D1 D0 PLED PC6 PC5 PC4

Interfaces and Connectors VL-EPIC-25 Reference Manual 58 PLD Revision and Type Register REVTYP (Read Only) CA1h D7 D6 D5 D4 D3 D2 D1 D0 PLD4 PLD3 P

Special Registers VL-EPIC-25 Reference Manual 59 BIOS and Jumper Status Register BIOSJSR (Read/Write) CA2h D7 D6 D5 D4 D3 D2 D1 D0 BIOS_JMP BIOS_O

VL-EPIC-25 Reference Manual 60 Appendix A – References CPU Intel Atom D425/D525 Dual Core Intel Atom Datasheet Vol. 1 and Vol. 2 Chipset Int

VL-EPIC-25 Reference Manual 61 Appendix B – Custom Programming PLD Interrupts The PLD can generate interrupts for the internal 8254 timers and the e

Special Registers VL-EPIC-25 Reference Manual 62 INTERRUPT STATUS REGISTER This register is used for reading the status of interrupts generated by th

Special Registers VL-EPIC-25 Reference Manual 63 8254 Timer Control Register This register is used to set modes related to the inputs on the 8254 Tim

VL-EPIC-25 Reference Manual 1 Introduction Description FEATURES AND CONSTRUCTION The Iguana (VL-EPIC-25) is a feature-packed single board computer (

Special Registers VL-EPIC-25 Reference Manual 64 The 32-bit cascade mode is set in TM4MODE in the Timer Control Register. There are also internal or

Introduction VL-EPIC-25 Reference Manual 2 Technical Specifications Specifications are typical at 25°C with +5V supply unless otherwise noted. Specif

Introduction VL-EPIC-25 Reference Manual 3 Block Diagram Power Input Regulators Includes Power Mgt & Sequencing Logic 18-bit LVDS Panel VGA On