Download Print this page
Aeroflex UT8MR8M8-EVB User Manual
Aeroflex UT8MR8M8-EVB User Manual

Aeroflex UT8MR8M8-EVB User Manual

64megabit nonvolatile mram evaluation board

Advertisement

Quick Links

Standard Products
64Megabit Non-
UT8MR8M8-EVB
Volatile MRAM
Evaluation Board
User Manual
July 2012
www.aeroflex.com/memories
1.0 INTRODUCTION
The Aeroflex 64Megabit Non-Volatile magnetoresistive random access memory (MRAM) is a high-
performance memory multichip module (MCM) compatible with traditional asynchronous SRAM
operations, organized as four individual 16,777,216 words by 8 bits. The MRAM is equipped with five
chip enables (/En), a single write enable (/W), and a single output enable (/G) pin, allowing for significant
system design flexibility without bus contention. Data is non-volatile for > 15 years at temperature and
data is automatically protected against power loss by a low voltage write inhibit.
The UT8MR8M8-EVB allows the user access to most all the features of the 64Mb MRAM via bench top
evaluation or using the UT699 LEON-3FT evaluation board.
2.0 SCOPE
This document describes the features and necessary steps to set-up and operate the Aeroflex Colorado Springs
64Megabit Non-Volatile MRAM Evaluation Board. Users must be familiar with the UT699 LEON-3FT Processor
and the 64Megabit Non-Volatile MRAM datasheets.
3.0 REFERENCE DOCUMENTS
Aeroflex Colorado Springs, "UT8MR8M8 64Megabit Non-Volatile MRAM" Datasheet,
www.aeroflex.com/memories
Aeroflex Gaisler "GR-CPCI-UT699 LEON3-FT CPCI Development Board" User Manual,
www.aeroflex.com/LEON
TM
Aeroflex Colorado Springs, "UT699 32-bit Fault Tolerant SPARC
V8/LEON3FT Processor" Datasheet,
www.aeroflex.com/LEON
1

Advertisement

loading
Need help?

Need help?

Do you have a question about the UT8MR8M8-EVB and is the answer not in the manual?

Questions and answers

Summary of Contents for Aeroflex UT8MR8M8-EVB

  • Page 1 Data is non-volatile for > 15 years at temperature and data is automatically protected against power loss by a low voltage write inhibit. The UT8MR8M8-EVB allows the user access to most all the features of the 64Mb MRAM via bench top evaluation or using the UT699 LEON-3FT evaluation board.
  • Page 2: Functional Diagram

    4.0 FUNCTIONAL DIAGRAM Figure 1. Notional UT8MR8M8-EVB block diagram...
  • Page 3 UT8MR8M8-EVB. Only one power source should be used at a time. 5.1 Power 5.1.1 External Power Power to the UT8MR8M8-EVB may be provided externally using 3.3V if using in a bench top only configuration. Figure 2. External Power Jumper Configuration Settings...
  • Page 4 5.1.2 Aeroflex Gaisler Board Power Power to the UT8MR8M8-EVB is also provided from the J9 connector on the GR-CPCI-UT699 LEON3- FT CPCI Development Board. J7, the 120 pin connector, is located on the back side of the EVB. Use caution when mating the 64Megabit Non-Volatile MRAM Evaluation Board to the LEON-3FT evaluation board.
  • Page 5 Figure 3. Aeroflex Gaisler LEON-3FT J7 to J9 connector...
  • Page 6 5.2 Address Inputs Table 3. Address Inputs J7 pin out LEON-3FT connector UT8MR8M8 Device (J9) (J7) Signal Signal...
  • Page 7 5.3 Data I/O The UT8MR8M8 has eight bidirectional data lines, DQ[7:0]. The data inputs/outputs are connected to J7 as shown in table 4. Table 4. Data I/O J7 pin out LEON-3FT connector UT8MR8M8 Device (J9) (J7) Signal Signal DATA0 DATA1 DATA2 DATA3 DATA4...
  • Page 8 5.4.1 Use as an External Memory with LEON Set J5 to ROMSN0 on the UT8MR8M8-EVB and uninstall JP6 on the UT699-EVB. 5.4.2 Use as IO Space Set J5 to IOSN option on the UT8MR8M8-EVB and install JP6 on the UT699-EVB. 5.5 Write Enable (/W)
  • Page 9 /W controls read and write operation. During a read cycle, /G must be asserted to enable the outputs. Table 6. Write Enable LEON-3FT J7 to J9 connector LEON-3FT connector UT8MR8M8 Device (J9) (J7) Signal Signal 5.6 Output Enable (/G) /W controls read and write operation. During a read cycle, /G must be asserted to enable the outputs. Table 7.
  • Page 10: Quick Start Guide

    UT8MR8M8 Figure 8. MBE pin Quick Start Guide The following steps describe how the user to get the UT8MR8M8-EVB up and running with the UT699 LEON-3FT EVB. 1. Connect J5to the UT8MR8M8-EVB to ROMSN0 for using MRAM as PROM - or - Connect J5to the UT8MR8M8-EVB to IOSN for using MRAM as IO Space 2.
  • Page 11 Table 8. Quick Start LEON-3FT S3 8-bit mode Configuration DIP Switch S3 Switch Function Value Comment PIO0 8-bit Mode (Closed) PIO1 8-bit Mode (Closed) PIO2 PROM EDAC disabled (Closed) PIO3 (Open) PIO4 (Open) PIO5 (Open) PIO6 (Open) PIO7 (Open) Table 9. Quick Start LEON-3FT S4 Configuration DIP Switch S4 Switch Function...
  • Page 12: Using Grmon

    Connects RAMSN0 and RAMSN1 to on board SRAM banks 5-6: Install 7-8: Install Do Not Install Connects ROMSN0 to on board MRAM on UT8MR8M8-EVB 1-2: Install Connects IOSN to on board MRAM on UT8MR8M8-EVB 1-2: Install PCI Host Mode clocks to backplane – see section 2.11...
  • Page 13 User code 7.0 COMPATIBILITY WITH GR-UT699 EVALUATION BOARD The UT8MR8M8-EVB can plug directly into the J9 connector on the LEON-3FT evaluation board. J9 on the GR-UT699 evaluation board is pinned out as listed in table 12 below. For further information on interfacing the UT8MR8M8-EVB with the GR-UT699 Evaluation board please see the Aeroflex Gaisler GR-UT699 Development Board User Manual.
  • Page 14 3.3V 3.3V ROMSN0 ROMSN0 RAMSN4 3.3V RAMSN3 RAMSN2 RAMSN1 RAMSN0 RWEN2 RWEN0 BRDYN RESETN BEXCN RWEN1 RWEN3 RAMOEN0 RAMOEN1 RAMOEN2 RAMOEN3...
  • Page 15 3.3V RAMOEN4 RAMSN1 IOSN READ 3.3V 3.3V DATA0 DATA1 DATA2 3.3V DATA3 DATA4 DATA5 DATA6 3.3V DATA7 +12V...
  • Page 16 -12V...
  • Page 17: Board Schematics

    BOARD SCHEMATICS The schematics are for reference ONLY.
  • Page 18 VDD3_3V DGND DGND CONN_MEZ120 47uF 0.1uF 0.01uF 0.1uF 0.01uF 0.1uF 0.01uF Aeroflex Colorado Springs Aeroflex Colorado Springs Aeroflex Colorado Springs 4350 Centennial Blvd. 4350 Centennial Blvd. 4350 Centennial Blvd. Colorado Springs Colorado Springs Colorado Springs Colorado 80907 Colorado 80907 Colorado 80907...
  • Page 19 ORDERING INFORMATION UT ***** Device Type: 8MR8M8-EVB = 64Megabit Non-Volatile MRAM Evaluation Board...
  • Page 20 Aeroflex Colorado Springs - Datasheet Definition Advanced Datasheet - Product In Development Preliminary Datasheet - Shipping Prototype Datasheet - Shipping QML & Reduced Hi – Rel...