mailto:tech@actel.com
FPGAs and PLDs | Microchip TechnologyFPGAs and PLDs | Microchip TechnologyFPGAs and PLDs | Microchip TechnologyFPGAs and PLDs | Microchip Technology
User Guide for Actel models including: SmartFusion2 MSS Fabric Interface Controller
SmartFusion FPGAs | Microchip Technology
File Info : application/pdf, 10 Pages, 374.58KB
DocumentDocumentSmartDesign MSS External Memory Controller (EMC) Configuration Actel Corporation, Mountain View, CA 94043 © 2010 Actel Corporation. All rights reserved. Printed in the United States of America Part Number: 5-02-00226-0 Release: July 2010 No part of this document may be copied or reproduced in any form or by any means without prior written consent of Actel. Actel makes no warranties with respect to this documentation and disclaims any implied warranties of merchantability or fitness for a particular purpose. Information in this document is subject to change without notice. Actel assumes no responsibility for any errors that may appear in this document. This document contains confidential proprietary information that is not to be disclosed to any unauthorized person without prior written consent of Actel Corporation. Trademarks Actel and the Actel logo are registered trademarks of Actel Corporation. Adobe and Acrobat Reader are registered trademarks of Adobe Systems, Inc. All other products or brand names mentioned are trademarks or registered trademarks of their respective holders. Table of Contents 1 Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Connectivity Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Port Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 A Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Actel Customer Technical Support Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Actel Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Contacting the Customer Technical Support Center . . . . . . . . . . . . . . . . . . . . . . . . . 9 SmartDesign MSS External Memory Controller (EMC) Configuration 3 1 Configuration Options The EMC provides a seamless interface to external memories. It supports asynchronous memories and synchronous SRAM memory types. For complete details please refer to the Actel SmartFusion Microcontroller Subsystem User's Guide. The EMC Configurator helps you configure the SmartFusion MSS External Memory Controller. Connectivity Options The EMC provides 2 chip select, each addressing 64MB of address space. The EMC configurator provides two regions (chip select 0 and 1) that can be configured independently. In this document, we provide a mapping between the EMC configurator's labels and the EMC register bits as defined in the Actel SmartFusion Microcontroller Subsystem User's Guide. Table 1-1 · Configurator Labels and EMC Register Bits Configurator Parameter Label Handbook Description Memory Type: · Asynchronous RAM · Synchronous RAM · NOR flash · None Port Size: · Byte · Half Word Invert Read/Write Signal Polarity Read Latency for First Access (HCLK cycles) Read Latency for Remaining Accesses (HCLK cycles) Write Latency (HCLK cycles) Use Alternate Chip Selection Configure BYTEN port as: · Write Enable · Byte Enable Pipeline Synchronous Read Cycle Pipeline Synchronous Write Cycle Inter Device Latency (HCLK cycles) External Memory Type: · Asynchronous /PSRAM memory · Synchronous memory · NOR flash memory · No memory assigned Port Size: · 8-bit EMD data bus · 16-bit EMD data bus Read/Write polarity Read data latency, first access Read data latency, next access Write data latency Chip select falling edge Write enable/byte enable Pipeline read Pipeline write Inter device delay SmartDesign MSS External Memory Controller (EMC) Configuration 5 Configuration Options Figure 1-1 · Region 0 Configuration Screen 6 SmartDesign MSS External Memory Controller (EMC) Configuration 2 Port Description Table 2-1 · EMC Port Description Port Name Port Group Direction PAD? Description AB[25:0] DB[N-1:0] BYTEN[1:0] CS1_N CS0_N OEN1_N OEN0_N RW_N CLK PADs PADs PADs PADs PADs PADs PADs PADs PADs Out Inout Out Out Out Out Out Out Out Yes Address bus Yes Bidirectional data bus. N is 8 or 16 based on the port size selection of the two EMC regions Yes Byte lane signals (BYTE_EN[1:0] in datasheet) Yes Chip select 1 Yes Chip select 0 Yes Output enable 1 (OE1_N in datasheet) Yes Output enable 0 (OE0_N in datasheet) Yes Read/write Yes Clock Notes: · PAD ports are automatically promoted to top throughout the design hierarchy. · Non-PAD ports must be promoted manually to the top level from the MSS configurator canvas to be available as the next level of hierarchy. SmartDesign MSS External Memory Controller (EMC) Configuration 7 A Product Support Actel backs its products with various support services including Customer Service, a Customer Technical Support Center, a web site, an FTP site, electronic mail, and worldwide sales offices. This appendix contains information about contacting Actel and using these support services. Customer Service Contact Customer Service for non-technical product support, such as product pricing, product upgrades, update information, order status, and authorization. From Northeast and North Central U.S.A., call 650.318.4480 From Southeast and Southwest U.S.A., call 650. 318.4480 From South Central U.S.A., call 650.318.4434 From Northwest U.S.A., call 650.318.4434 From Canada, call 650.318.4480 From Europe, call 650.318.4252 or +44 (0) 1276 401 500 From Japan, call 650.318.4743 From the rest of the world, call 650.318.4743 Fax, from anywhere in the world 650.318.8044 Actel Customer Technical Support Center Actel staffs its Customer Technical Support Center with highly skilled engineers who can help answer your hardware, software, and design questions. The Customer Technical Support Center spends a great deal of time creating application notes and answers to FAQs. So, before you contact us, please visit our online resources. It is very likely we have already answered your questions. Actel Technical Support Visit the Actel Customer Support website (www.actel.com/support/search/default.aspx) for more information and support. Many answers available on the searchable web resource include diagrams, illustrations, and links to other resources on the Actel web site. Website You can browse a variety of technical and non-technical information on Actel's home page, at www.actel.com. Contacting the Customer Technical Support Center Highly skilled engineers staff the Technical Support Center from 7:00 A.M. to 6:00 P.M., Pacific Time, Monday through Friday. Several ways of contacting the Center follow: Email You can communicate your technical questions to our email address and receive answers back by email, fax, or phone. Also, if you have design problems, you can email your design files to receive assistance. We constantly monitor the email account throughout the day. When sending your request to us, please be sure to include your full name, company name, and your contact information for efficient processing of your request. The technical support email address is tech@actel.com. SmartDesign MSS External Memory Controller (EMC) Configuration 9 Phone Our Technical Support Center answers all calls. The center retrieves information, such as your name, company name, phone number and your question, and then issues a case number. The Center then forwards the information to a queue where the first available application engineer receives the data and returns your call. The phone hours are from 7:00 A.M. to 6:00 P.M., Pacific Time, Monday through Friday. The Technical Support numbers are: 650.318.4460 800.262.1060 Customers needing assistance outside the US time zones can either contact technical support via email (tech@actel.com) or contact a local sales office. Sales office listings can be found at www.actel.com/company/contact/default.aspx. Actel is the leader in low-power and mixed-signal FPGAs and offers the most comprehensive portfolio of system and power management solutions. Power Matters. Learn more at www.actel.com. Actel Corporation · 2061 Stierlin Court · Mountain View, CA 94043 · USA Phone 650.318.4200 · Fax 650.318.4600 · Customer Service: 650.318.1010 · Customer Applications Center: 800.262.1060 Actel Europe Ltd. · River Court, Meadows Business Park · Station Approach, Blackwater · Camberley Surrey GU17 9AB · United Kingdom Phone +44 (0) 1276 609 300 · Fax +44 (0) 1276 607 540 Actel Japan · EXOS Ebisu Building 4F · 1-24-14 Ebisu Shibuya-ku · Tokyo 150 · Japan Phone +81.03.3445.7671 · Fax +81.03.3445.7668 · http://jp.actel.com Actel Hong Kong · Room 2107, China Resources Building · 26 Harbour Road · Wanchai · Hong Kong Phone +852 2185 6460 · Fax +852 2185 6488 · www.actel.com.cn 5-02-00226-0/07.10