VersaLogic Lion VL-EPMe-42 User manual

Programmer’s
Reference
Manual
REV. May 2018
Lion
(VL-EPMe-42)
Intel®Core™-based Single Board Computer with
Dual Ethernet, Video, USB, SATA, Serial I/O,
Digital I/O, Trusted Platform Module security,
Counter/Timers, Mini PCIe, mSATA, SPX, and
PCIe/104™ OneBank™ Interface

Lion (VL-EPMe-42) Programmer’s Reference Manual ii
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Notice:
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Lion (VL-EPMe-42) Programmer’s Reference Manual iii
Product Release Notes
Release 1.3- Updated Uartmode1 – Uart Mode Register #1 section
Release 1.2- Added descriptions to the FPGA table
Release 1.1- Updated Processor Wake# section
Release 1.0- Initial Production Draft
Support
The EPMe-42 support page contains additional information and resources for this product including:
Reference Manual (PDF format)
Operating system information and software drivers
Data sheets and manufacturers’ links for chips used in this product
BIOS information and upgrades
Utility routines and benchmark software
The VersaTech KnowledgeBase is an invaluable resource for resolving technical issues with
your VersaLogic product.
VersaTech KnowledgeBase

Lion (VL-EPMe-42) Programmer’s Reference Manual iv
Contents
Overview ........................................................................................................................1
Related Documents.............................................................................................................1
System Resources and Maps.......................................................................................2
Memory Map ......................................................................................................................2
Interrupts.............................................................................................................................2
FPGA Registers.............................................................................................................4
FPGA I/O Space .................................................................................................................4
FPGA Register Map ...........................................................................................................5
FPGA Register Descriptions...............................................................................................8
Product Information Registers............................................................................... 8
BIOS and Jumper Status Register..........................................................................9
Timer Registers....................................................................................................11
SPI Control Registers ..........................................................................................14
SPI Data Registers...............................................................................................16
SPI Debug Control Register and mSATA/PCIe Select Control Register............17
Miscellaneous FPGA Registers...........................................................................18
Programming Information for Hardware Interfaces..................................................33
Processor WAKE# Capabilities........................................................................................33
Watchdog Timer...............................................................................................................33
Industrial I/O Functions and SPI Interface.......................................................................34
Programmable LED..........................................................................................................34

Lion (VL-EPMe-42) Programmer’s Reference Manual 1
Overview
This document provides information for users requiring register-level information for developing
applications as it relates the FPGA functionality with the VL-EPMe-42.
Related Documents
The following documents available are on the EPMe-42 Product Support Web Page:
EPMe-42 Hardware Reference Manual – provides information on the board’s hardware features
including connectors and all interfaces.
EPMe-42 BIOS Reference Manual – provides information on accessing and configuring settings in the
BIOS Setup utility. All BIOS menus, submenus, and configuration options are described.
This document is available through the software page:
VersaAPI Installation and Reference Guide – describes the shared library of API calls for reading
and controlling on-board devices on certain VersaLogic products.
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