In this project, the board is a VME Bus CPU board using a Motorola 68000 CPU. Motorola, Mostek, and Signetics agreed to jointly develop and support the new bus architecture in early 1981. Optional Slot 0 operation with Bus Arbitration, Reset, clock distribution provided. I2C Bus GbE 3 GbE 4 COM2 – COM5 PMC 1 Jn4 IO I2C Bus LBC PCI Express MPC864xD Processor Device Bus RTC DS1375 VPD 8 KB Temp MAX6649 CPLD Decode Timers/Regs QUART 16C554 Flash 128MB Flash 2, 4 or 8GB. The VME bus operations structure, which defines the VME bus API and its version. 0. (P4) and the VME host's user IO connector. VMEbus. Its characteristics originate in the 68000 microprocessor's interface signals. Some are ANSI standards such as ANSI/VITA 46. Low power CPUs. A/D, D/A and Digital I/O. 3 Master. The is an t excellen to ol for e asiv v non-in monitoring of bus. 3 V Functionality in most popular supply voltage in the industry. This example match function (from vme_user. 2V, +12V and -12V. This example match function (from vme_user. The VME-6500 is a 6U VME Multifunction I/O board that can deliver in a single chassis slot the analog and digital I/O capabilities that could previously have occupied four slots, and can therefore make a significant contribution to substantially enhance performance and functional density. Early systems, regardless of the bus architecture, tended to place a CPU on one board, system RAM on another, and I/O devices on additional boards. Learn how your comment data is processed. The match function should return 1 if a device should be probed and 0 otherwise. ANSI / VITA conform portfolio of VME and VME64x backplanes: Up to 21 Slots; 3 U and 6 U rack height; ANSI / VITA 1-1994 VME64; ANSI / VITA 1. VDIO-64 – I/O Card with isolated 32x Digital In and 32x Digital Out. The worst-case delay for the start of a VME access, if all of the devices on the IO4 simulataneously request the IO channel for a 128 byte write and the VME adapter receives the grant last. The P1 connector, (mandatory in VME or VXIbus), carries the data transfer bus. weaknesses, and is optimized for its own class of applications. Force Computer's 80286 VME board. VME SBC Upgrade Guide: 7 Simple Steps to Upgrading a VME SBC. and 1. The products are designed and tested to the same standards as all our militarized products with the same attention to detail. 從另一個角度來看，如果說 主機板 （Mother Board）是一座城市，那麼匯流排就像是城市裡的 公共汽車 （bus），能按照固定行車路線. All digitizer modules are bus slaves. VME busWe would like to show you a description here but the site won’t allow us. 1 × Valmet Automation VME-06 Backplane A 6 slot, VME backplane with power connector for slot-mounted PSU. The match function should return 1 if a device should be probed and 0 otherwise. NAI Ethernet Interface for Embedded IO Boards Specification 4/10/2015 1:51:42 PM. from Artesyn Embedded Power. number of values” DBF_LONG High Quality Chassis and Enclosures for VME and VME64x Applications. 5. Wayside Inspection Devices IO200 Plug-In VME Module Manuals, Datasheets, Drivers, Links View Wayside Inspection Devices Information ; View all Wayside Inspection Devices products. u32 dwidth VME data width to use for DMA transfer. The card is a 32 input plus 32-output discrete PXI bus. c) limits the number of devices probed to one: #define USER_BUS_MAX 1. CHAPTER 1 CHAPTER 1 VME System Monitor Board 1. Skip to content. match’ function allows control over which VME devices should be registered with the driver. ラジコンプロポメーカーの双葉さんが開発した、ラジコン用の通信プロトコルです。. I/O products are available with both digital and analog interfaces with a variety of. This document assumes that you have some knowledge of the Linux operating system, C. match' function allows control over which VME devices should be registered with the driver. 4 of VxWorks and 2. Although the hardware is expensive and based on 20-year-old technology, VME. match’ function allows control over which VME devices should be registered with the driver. VMEbus ( Versa Module Eurocard [1] bus) is a computer bus standard physically based on Eurocard sizes. Class II defines an endurance of 400 insertion/extraction cycles. Description Datasheet; 3610000700: cPCI/VME/VME64x Test Adapter - 3U CompactPCI Peripheral Extender 32bit / Rear IO, 320mm, P2=1:1: 3610000700. There are many devices supporting the 1553 bus - navigation devices, instrumentation, sensors and more. The IOs and the power supply are connected via the P2 connector of the board. When you add storage controllers, they are numbered sequentially 1, 2, and 3. IO Timing module: Wide band down converter: Oscillator & Frequency Synthesizer: High speed Datalogger: Synchronized Multi channel Mil 1553B module: ABOUT US. 1) Figure 20. The MVME5500 from Artesyn Embedded Technologies uses the MPC7457 processor running at 1 GHz, balanced with memory, dual independent local buses and I/O subsystems. Wayne Fischer (Motorola) heads IEEE working group for US VME standard, IEEE 1014. たいて. A D8 cycle can be either D8 (O) odd address or D8 (EO) even and odd address. In order to use VME, a custom PL peripheral shall be developed. Typical data. The original accelerator and beamline control systems at Diamond are based on VME systems. 物理的には Eurocard サイズの接続. No, which saw Sean Connery (may he rest in peace) bring Bond to the big screen for the first time. 0–2019. Concurrently acts as Bus Controller, Multiple Remote. The optical-link remote I/O system called "OPT-VME system" that consists of a VME master and several kinds of slave boards is widely used in SPring-8 and SACLA. Portions of this FAQ have been reprinted (with permission) from The VMEbus Handbook, 4th Edition by Wade D. 26Gbps. 800. 2V, +12V and -12V with three main signal lines, which are ACFAIL, PG (Power Good) and SYSRESET. The electronic design industry has widely accepted the. 800. 4billion, continuing the small but steady growth of recent years. Srini Computer Science Division, EECS University of California, Berkeley, CA 94720. Developing EPICS drivers for VME bus needs the knowledge of computer mechanisms such as memory mapping. John Black heads Technical. The BSP version that we have used is vmisft-7433-3. . Acromag's line of VME boards and VME carriers provide a variety of high-performance embedded computing solutions for defense, aerospace, scientific, and research lab applications. Components that might communicate via VME bus are e. 它定义了一个在紧密 耦合 （closely coupled） 硬件 构架中可进行互连数据处理. All VME modules are equipped with two 3-row DIN-96 pin type connectors P1/P2 which match. VME Bus Vinay Shet Introduction VME - Versa Module Europa Flexible, open-ended bus system using the Eurocard Standard Introduced by Motorola, Mostek and Signetics in 1981 It was intended to be a flexible environment, supporting a variety of computing intensive tasks. The VME64 specification brings multiplexed address and data cycles to both P1 only and P1/P2 configurations. 406-1. Powered by a choice of Freescale’s 1. Make Offer. VME. Release date: December 2012. IP-1553 makes it easy to gain access to the MIL-STD-1553 bus. schematics. In fact, VPX is the only bus architecture format that defines a standard approach for XMC I/O to the backplane. The term ‘VME’ stands for VERSAmodule Eurocard and was first coined in 1980 by the group of manufacturers who defined it. VME bus single board computer equipped with PowerPC G4 processor, Tsi108 system controller and Tsi148 PCI-VME bridge. 0. Both J1 and J2 are 96-way DIN sockets. On the PCI local bus side, the Omni-VME bridge supports standard 32- and 64-bit PCI transfers at 33 MHz, giving it a peak performance of 266 MBps. are not included with this equipment unless listed in the above stock item description. What Is a VME Board? VME (Versa Module Europe) boards were developed as boards that use the VME bus, a bus for CPUs. Industry Pack Carriers. An intelligent VME card that map data to a standard TCP/IP protocol (may be ModBus ?) would be fine. This will let OmniVME support PCI local bus and PCI-to. For Info on this carrier see: There is a 6U dual 64/100 PMC VME carrier (with a P0 connector. How 2-Speed Measurement Data for Synchro/Resolver is Calculated and Presented. アーキテクチャが単純だった黎明期のコンピュータでは、各要素が単一のバスに接続されていた。たとえば、サン・マイクロシステムズの初期のワークステーションでは、vmeバスやマルチバスを使っていた。しかし、コンピュータの性能が向上するにつれて. This bus includes the initial four basic sub buses: data transfer bus, priority interrupt bus, arbitration bus, and utility bus. Motorola, Mostek, and Signetics agreed to jointly develop and support the new bus architecture in early 1981. Gillingham, "Diamond's transition from VME to modular distributed I/O", PCaPAC 2010, Saskatoon, Saskatchewan, Canada. This example match function (from vme_user. Figure 2: VME software layout for Linux 2. 3U VPX VITA46 form factor Active VPX Carrier Card. VME bus Specification & architecture. The '. VME bus proto col analyzer. The VMIVME-4514A provides the user with 16 analog outputs with 12 bits of resolution. PCやマイコンで扱おうとすると 少し癖がある ので注意です。. The functions that operate on DMA maps are summarized in Table 14-2. encodes number of PCI slot in which the desired PCI device resides and the logical device number within that slot in case of multi-function devices. Description. Beyond Electronics produces I/O and Memory boards designed for rugged environments and commercial use. Gen1-3. The bridge supports all of the VME transfer modes from VME32 up through 2eSST320, providing drop-in compatibility or performance boost. 2. This example match function (from vme_user. Answer 1 of 11: Hi there, Does anybody know if you can purchase a BC transit but pass in either Vancouver or Victoria airports? Thank youFor the bus route from downtown to Butchart Garden, there are about 50 stops. 0 of Tornado. Single cycle data transfer operations are labeled D8 (O), D8 (EO), D16, D32, and MD32. h the starting bus address and a length. The power and speed of computer components has increased at a steady rate since desktop computers were first developed decades ago. 6 Connectors (Optional) 4. 4 implementation, the VME card drivers are completely independent of the bus (host). VSB. On the MVME6100 board, the only way to trap VME bus errors is with an interrupt vector since there is no Machine Check Exception generated by the Tempe chip. 30468 SRC PCB, VME IO CHANNEL BUS SVB-05EIO quantity. Relevant informations about AIM's AVC1553-x Interface Module. Numerous CPU boards on VME provide PMC slots for I/O expansion. ANSI/VITA Stabilized Maintenance: $25: Free: VITA 38-2003 (S2022) System Management on VME 1: to VME bus 0: from VME bus vme_am_int_drv_n out Active low drive enable signal for internal vme_am and vme_write_n drivers 1: Output is tri-stated 0: Output is active vme_dtack_int_in_n in Data transfer acknowledge input Used to indicate whether the DTACK is drive low or high (for rescinding) vme_dtack_int_out_n out Data transfer acknowledge. VMEbus computers. int *io_board_1 = 0xfeeeeee; /* Assign to proper address */ buffer[i] = *io_board_1; Depending on how fast the data is coming, it may be better to generate anA computer interface is provided to support communication between a VMEbus architecture and a computer having its inputoutput IO interface based on MIL- STD 1397B Type D or E asynchronous serial data specifications. Unveiled in the early 1980s, the bus was intended to be a flexible environment, capable of supporting a variety of computing-intensive tasks. VME (Linux) 2536: VMIC Digital IO module, 32 channels: Russ Berg: VME: VMIVME-1111: 64-bit binary input: VME: VMIVME-1129: digital input 128-bit: Matthew Bickley: VME: VMIVME-1182:Complies with IEEE 1101. This single board computer updates your legacy systems with an Intel processor that will deliver an enhanced microarchitecture, integrated graphics, and expanded memory performance. 3U model holds two modules. History In 1979, during development of the Motorola 68000 CPU, one of their engineers, Jack Kister, decided to set about creating a standardized bus system for 68000-based systems. 2 The VME64 to PCI Bridge SoC described in this manual interfaces to the back end of the Xilinx LOGIcore PCI, and is purchased separately from Xilinx. VME. com ,. VMEボードについての概要、用途、原理などをご説明します。. This paper discusses the design of a bus interface and analog output controller for a VME64x based Analog Output Card. Each channel can be set and read out via the VME interface. This will let OmniVME support PCI local bus and PCI-to. Control via either VME Bus or dual Gigabit Ethernet (Gig-E) interfaces. We have a bus analyzer in the VME rack set to trigger on anything but it never did, so the BusView is a Windows application included with all Curtiss-Wright (formerly VMETRO) Vanguard Bus Analyzer products. VERSAbus cards were large, 370 by 230 mm (14+1⁄2 by 9+1⁄4. Format: 6U, 1 Slot. The VME bridge is ideally suited for processor and peripheral I/O boards that function as both a master and slave in the VMEbus system. VPX. Support for 6 independent, intelligent function modules. An optional daughter board, GEB VANA, allows the storing of VME bus cycles in state mode and/or in timing mode. The module provides VMEbus mastering,. I updated my VME crates from base 7. Skip to navigationThis 4th generation VME analyzer combines high performance hardware with a sophisticated and intuitive software interface. 2. 2 IO Descriptions. VME버스(VMEbus)는 컴퓨터 버스 표준이다. Plessey's first 68000 VME boards. I. FMC-TC – FPGA Mezzanine Card | 5 channel high precision /. VME is very different than say, ECP or S-100, and has some very specific design and timing requirements. In general, the RTMs are used only to provide additional IO to the front processing modules, and they don’t require crate controller access for setup and configuration. VME busVME boards available for modern defense, aerospace and industrial applications may bear an aesthetic resemblance to their original single-board VME ancestors in the ‘80s and ‘90s, but their computational capabilities are worlds apart. I. 68K CPU에 잘 매치되는 Bus. The '. The Caches, the Address Translation Unit, and the VME bus Interface Georges E. The new VPX connector allows signals to operate up to 6. The Universe II VMEbus bridge product supports the VME64 and. 4 to 7. 1 Types Of Arbitration 3. Bus transfers are asynchronous, relying on a handshaking protocol instead of a system clock, and the data bandwidth is limited to 40 Mbytes/sec. STE stands for ST andard E urocard. Victoria. From inside the book . Isolation and non-isolation options available. VME [Versa Module European] is based on the VME parallel bus. The controller is inserted inside the VME crate and controls the industrial process via input and output modules that. For Physics instrumentation a 9U x 400m form factor was added. The AT-VME-PADC-MPC8548 is the next generation of PowerPC based Single Board Computers in the AT series of products featuring Freescale’s MPC8548E PowerQUICC III processor which integrates the enhanced e500 PowerPC core and advanced features such as DDR2 SDRAM with 1GB, 128 MB of NOR flash, 1GB of NAND Flash, 64KB Serial. Return. card I/O. However, manufacturers do produce backplanes that handle both VME and VPX cards. Using USB or RS232 or 1149. . Address Lines: Used. unsigned int devfn. The VME bus is one of the longest-lasting standards in the electronics world. At least I have. Isolation and non-isolation options available. c) limits the number of devices probed to one: #define USER_BUS_MAX 1. 2 Bus Busy Line (BBSY*) 3. After almost finishing the. 1. TPM 2. Dynamic address and data sizing • Makes no distinction between IO space and Memory space • Uses three address spaces • 16-bit (A16) • 24-bit. Programmable Baud Rates up to 115. ASSjF CA" ON Io RESTR. VME BUS BASED SYSTEMS by Steven L. In 1981 (“For Your Eyes Only)”, Motorola. Versa Module Eurocard (VME) backplane bus is a computer bus standard, originally developed for the Motorola 68000. MIL-STD-1553 is the interface of choice for critical applications; for example aircraft instrumentation and control. 100 MHz 12 bit 8 channel transient recorder. Configuration: • VME State Analyzer: 133 MHz Timing Analyzer and Statistics Module. The XCalibur4531 is a 5th Generation Intel® Core™ i7 6U VME SBC featuring a Xilinx Artix-7 FPGA-based VME bridging solution. The RapidIO protocol was originally designed by Mercury Computer Systems and Motorola ( Freescale) as a replacement for Mercury's RACEway proprietary bus and Freescale's PowerPC bus. . 1. Each vme bus in the system is controlled by a vme_host and is used by one or more vme_devices . The utilities also serve as C code examples for programmatically accessing the VMEbus. PMC/XMC Site provides 4 lane PCIe link on J15 Connector. 2. The usual type is “fixed. VMEbus is a computer architecture. in railway engineering applications or on the. 2. Very first VME bus is designed by Motorola for its 68K Processors. Just connect; program a few registers and then use like an IO. Components. This IP can be considered as a VME to AXI bus bridge and can be implemented in any FPGA having interface to a VME Bus Interface. 3 in stock. Since we put the patch on all the VME-MXI modules we have, we have not observed any halt. The '. VPX offers another benefit to XMC module users resulting from its use of Tyco’s MultiGig RT-2 connectors, greatly improvingVXI Connector Manufacturers {603-2-IECC096xx-xxx}. The P2 connector, expands the data transfer bus to a full 32-bit size, and adds:Product information. The P2 connector, expands the data transfer bus to a full 32-bit size, and adds: The VME-6500 is a 6U VME Multifunction I/O board that can deliver in a single chassis slot the…. Available in three variants – Commercial, Air-Cooled, Conduction-Cooled. Buses and Bus Standards 403 W. This unit has conformal coating. vme_int_drv_n in Active low drive enable signal for internal bidirectional data bus drivers. 总线 （ Bus ）是指 计算机组件 间规范化的交换 数据 （data）的方式，即以一种通用的方式为各组件提供数据传送和 控制逻辑 。. name’ element is a pointer to a string holding the device driver’s name. 4. Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software. VME and its secondary. JIRA MAINPROFI-694. The Universe II VMEbus bridge product. SKYchannel) are still the buses of choice for large scale embedded. This allows one CPU board to have high speed access to: 1) Up to 384 analog input channels; or 2) Up to 96 analog output channels; or 3) Up to 24 high speed bidirectional serial I/O channels; or 4) Up to six. static int vme_user_match(struct vme_dev *vdev. The STEbus (also called the IEEE-1000 bus) is a non-proprietary, processor-independent, computer bus with 8 data lines and 20. C1300 VME zu II/O Interface Baugruppe Beckhoff II/O-System Datum : 15. Besides sending command and data to VME device, it is also able to respond interrupt and read interrupt data. 406-1. VME Bus Controller is used in wide application areas where high reliability, good accuracy and high speed. A/D, D/A, D/A and Digital I/O. Data accesses via the VME interface board's DMA engine can be for D8, D16, D32, and D64 sizes. Michael Davidsaver mdavidsaver@bnl. The VME64 specification brings multiplexed address and data cycles to both P1 only and P1/P2 configurations. Product description: The SST PROFIBUS VME card connects your VME bus computer, motion controller or programmable controller to PROFIBUS DP. 1, and also updated to the latest version of synApps modules. install about 200 new VME crates in various renovations during Long Shutdown 2 in 2019-2020. During the past two years, a great deal of speculation has swirled around the direction VME architecture development should take. g. We also develop custom backplanes to meet your specifications, from initial concept to finished product. GSC has a wide variety of analog, serial, and digital I/O cards in the PMC form factor. The VME bus family was originally introduced to support the 68000 series of microprocessors, although many other processors have been packaged into this standard. adl . They named the new bus VERSAbus-E, which was later renamed "VME" by Lyman Hevle, then VP of the Motorola Microsystems Operation (and later the founder of VITA). io game, where you’ll be controlling a bus. wide, but each bus system has its own built-in strengths and. 620-3. VME BUS VME bus was originally developed in the 1980 s for Mo-torola 68k processors as a multi drop, parallel bus with big endian byte ordering [1]. g. Hi, I am looking for a VME card to communicate beetween VME Bus (SBC, IO cards with pSos ) and HMI (Windows NT) with TCP/IP. Priced starting at about $11,900, it replaces the company's workhorse Model VBT-325, which is arguably the de facto. ANSI / VITA conform portfolio of VME and VME64x backplanes: Up to 21 Slots; 3 U and 6 U rack height; ANSI / VITA 1-1994 VME64; ANSI / VITA 1. VME is the acronym for VERSAmodule Europe. VME란 무엇인가. Fig 1. VME总线原理及应用. The RapidIO protocol was originally designed by Mercury Computer Systems and Motorola ( Freescale) as a replacement for Mercury's RACEway proprietary bus and Freescale's PowerPC bus. boost VME technology acceptance. 1970년 대 후반에 모토로라 가 68000 칩을 개발하면서 공개한 Versa 버스를 유럽 시장에서 그들의 유로카드(Eurocard)에 맞게 바꾸어 크게 성공하자 모토로라사는 이 버스를 유럽의 전자업계에 지원하게 하여. VPX [VITA 46] is based on PCIe. The VME-6500 is a 6U VME Multifunction I/O board that can deliver in a single chassis slot the analog and digital I/OVME crates provides power supply and a high speed parallel bus for data transfer from and to up to 20 standard VME modules. Data sheets on all of the chips on. Available in three variants – Commercial, Air-Cooled, Conduction-Cooled. 2. 01 Date : 18. UNIBUS. C++ and . 6U VME Multifunction IO with Master VME Bus capability. Other players will try to do the same, so be sure to. 32-Channel 200 MHz Multiscaler (64K, 256K FIFO) CARS:mca. Connector types also found on the VME Bus: VPX (Virtual Path Cross-Connect), also known as VITA 46, is a set of standards for connecting components of a computer (known as a computer bus ), commonly used by defense contractors. Find the IoT board you’ve been searching for using this interactive solution space to help you visualize the product selection process and showcase important trade-off decisions. name’ element is a pointer to a string holding the device driver’s name. It works with your current Kvaser, Softing, Vector or Peak hardware and it supports both. On the A2087 are two right-angle 96-Way DIN. The basic idea of CBA is that an entire automation system can be divided into autonomously operating subsystems. • INgress MMU based IO scatter-gather on PCI Express and VME Slave ports. VME总线原理及应用. This is a VME-to-PCI bridge device that provides an interface between a VMEbus or VME320 backplane and a local on-card PCI bus. Input Voltage: TTL and Open Collector. J2 rear IO [both 3U and 6U]. Dimensions- 233. Thus, this sequencer engine based VME crate controller development facilitates collection of a high volume of data with a large number of signals at higher event rates and the least dead time; it is named as Readout Ordained Sequencer Engine. Dimensions- 233. Control was done over the VME bus. These VMEbus SBC processor modules offer a range of CPU, I/O, memory, and hardware configurations to satisfy your unique application requirements. 2. J1 PCIe lanes. J. . The module provides VMEbus mastering, with two DMA engines, and has a built-in script recording and playback feature. VMEbus I/O and Memory Boards. Short for Versa Module Eurocard bus, VMEbus is a computer bus developed in 1981, by Motorola that sends data at 8, 16, 32, and 64-bits at a time. Features & Benefits. The PCIe bus does not have a concept of global addressing. For third-party VME devices, look for a VECTOR line supplied by the manufacturer,. This call also specifies a “fixed” or “unfixed” map. The adapter allows each bus to operate indepen-dently. Over the evolution of its near 40 years of existence, VME-bus has become a worldwide standard and is still used in a wide variety of. The following rules must be observed to include a mid bus probe:As part of the compatible follow-up development, we have generated a new edition of our VMEbus IO card VME-DPIO32 bringing it up to date with the latest technology and ensuring long-term availability. VMX memory expansion bus and VMS serial bus introduced. After creating a DMA map, a driver uses the map to specify the target address and length to be programmed into a VME bus master before a DMA transfer. The is an t excellen to ol for e asiv v non-in monitoring of bus. Take a shuttle. In nuclear physics application the bus is controlled by one readout controller, which is the bus master. With a zero wait state implementation for write transactions, and the capability to support pre-fetch reads. It is fully compliant with the VME64 bus standard, and is tailored to support advanced PCI processors and peripherals. So contrary to popular belief the 21 year old bus standard is not indecline and in fact, the Motorola Computer Group believes it is setto see increasing. Provides one PMC/XMC expansion site. VMEbus (Versa Module Eurocard bus) is a computer bus standard, originally developed for the Motorola 68000 line of CPUs, but later widely used for many applications [which?] and standardized by the IEC as ANSI/IEEE 1014-1987. control signals (VD, CLK, RES, SYSF,. RPCC-D1553 Interface. In 1979, during development of the Motorola 68000 CPU, one of their engineers, Jack Kister, decided to set about creating a standardized bus system for 68000-based systems. gov Rev. We reported the fact to the manufacturer and in reply, they sent us patch information about the module. 35 x 160mm. 1 × Greenspring SBC1 VMEbus CPU Module 3U VMEbus Single board computer with Motorola 68000 CPU and OS-9 Roms. XMC cards and modules provide a high-performance, rugged, embedded computing platform for high-speed data communication in military/defense, aerospace, and research lab systems. Pentium and other PCI local bus based VMEbus processor designs. VME bus operates in DC voltages of 5. You will do that only by collecting people who are waiting by the road. Oscilloscope). News & Analytics Products Design Tools About Us. bus,data bus and control bus interfaces with the FPGA. The VME_PROP_IO_REGS property of a VME device node defines the VME I/O regions required/allocated for this device. NAI's 64C3 is a rugged 6U VME multifunction I/O and communication (Bus master or slave) control board with six intelligent function module slots that can be configured with a variety of I/O and communication functions. Product List; Product Index; Supported Manufacturers;the bus type, ADAP_VME or ADAP_EISA from sys/edt. A 3U CompactPCI backplane with J2 (top) and J1 (bottom, with blue key in the middle) connectors.