Documents about Daisy Chain

  • 10 Pages

    02MultistoryBuildingLANLabManual

    North Texas, BCIS 5620

    Excerpt: ... Lab 2: Multistory Building LAN: Daisy Chain Versus Collapsed Backbone Architecture Objective This lab teaches the application performance of two different network architectures: Daisy Chain and Collapsed Backbone Network. The book shows a collapsed backbone data network in which there is a core switch in the basement equipment room. The core switch is linked directly to a workgroup switch on each floor. Another option is to link the switches in a daisy chain . In this approach, the basement core switch is linked directly to the first floor switch, the first floor switch is linked directly to the second floor switch, and so forth. This lab shows the application latency introduced by connecting building switches in different ways. Overview The First Bank of Paradise's Operations building has 10 floors, each having many users connected to a 10Base-T workgroup switch in the floor's telecommunications closet. The users share an Oracle server and seven file and print servers in the basement. In Scenario 1, the swit ...

  • 7 Pages

    dcd

    Michigan State University, ECE 482

    Excerpt: ... Daisy-Chain Downloading December 5, 1998 ABSTRACT This documentation is being written to help future Spartan Embedded Technologies (SET) teams with the understanding of the process of Daisy-Chain Downloading. This technique is very useful when using ...

  • 3 Pages

    trigger

    Penn State, CREAM 4

    Excerpt: ... Trigger Broadcast Cable Diagram pyr pyl mxl pxr TCD Master Trigger s3 ck mxr pxl myl myr 13 11 9 7 5 3 1 Testing purposes only Pins disconnected for flight Notch faces instrument Trigger Side Logic/ Daisy Chain Diagram Side Logic Daisy Chain (10 pin ribbon cable) pxr TCD Master Trigger pyr pyl s3 mxl mxr pxl myl myr Side Logic Daisy Chain Evt # Daisy Chain Cable Side Logic Daisy Chain Evt # Concentrator Side View Event Number Cable Diagram pyr pyl mxl pxr s3 ck mxr pxl Instrument Master Trigger myl myr The exact routing of the Event Number cable shown here is not believed to be accurate for CREAM-4. Ethernet Cable/Switch Diagram Ethernet Switch Ethernet Cable Switch Uplink mxl pyr pyl pxr s3 ck mxr pxl Flight Computer myl myr ...

  • 3 Pages

    ExamIIStudyGuide

    Middle Tennessee State University, MRAT 6030

    Excerpt: ... MRAT 6030 Study Guide for Exam II MIDI Messages MIDI History What happened in 1981, 1982 and 1983? Binary to decimal and decimal numbers to binary conversion Give number of values (states) represented by given number of bits Binary to hexadecimal conversion Anatomy of a status byte and data byte Interpret a MIDI message (in binary) MIDI Connection MIDI transmission MIDI ports Poly and Multi modes Local control what, how and why Connections ( Daisy chain , star network, merge) Polyphony MIDI Interface Patch Thru Audio MIDI Setup (CoreMIDI) Sequencing Topics Types of sequencers Step, MIDI (Hardware and Software) Step Entry Current step PPQN and number of ticks for different note durations Click Setup and Use Real Time Recording Auto Rewind, Overdub, Memory Cycle, Loop Recording The Event List Quantization - Grid value, Strength (what is it and why use it) ...

  • 4 Pages

    ASSIGN_UNIQUE_ADDRESSES_TO_SLA_ECYL_IN_RS232_CHAIN

    Walla Walla University, ENGR 480

    Excerpt: ... AppNote : DAAN-0607004 - Assigning unique addresses to SLA/eCylinder/eRotary in the daisy chain . DE-STA-CO Automation, Electric Products Group The objective of this article is to describe a way to assign unique addresses to the SLA/eCylinder/eRotary connected in the daisy chain topology using a serial connection. Contents Summary Description Conclusion References Summary To communicate with individual motors connected in the daisy chain topology, it is necessary to assign a unique address to each of them. The SLA OS application does this automatically when connected to the motors. However, many applications require this addressing mechanism to be part of their overall system that includes direct serial communication with the motors. Description Assigning unique addresses The electric slides and rotaries are connected to a host controller using a RS-232 serial connection The typical daisy chain connection topology looks like below: Initially when the power is turned ON, the motors have undefined addresses ...

  • 1 Pages

    guide02

    The University of Akron, EE 470

    Excerpt: ... Embedded Systems Interfacing Fall 2008 jeg Study Guide 2 There will be 15 multiple-choice questions worth 30 points out of the 100 possible. Transfer your best choice for the question to the table at the top of the first page of the examination. T ...

  • 1 Pages

    Exam 2 review topics

    Vanderbilt, CS 231

    Excerpt: ... zation signals allow a memory access. Bus arbitration: what are the bus request signals, bus grant signal, and the arbiter used for? How does daisy chain ing work? Bus types: ISA, PCA, USB. Bus bandwidth calculation. Chapter 4 Purpose of microarchitecture level. What are the steps in the fetch-decode-execute cycle? What does each step do? Data path components and their significance. How does the data path work? Understand block diagram of datapath and control regions in figure 4-6 Know why local variables are kept on the stack and not in absolute memory locations. Know the purpose/function of each register shown in figure 4-1. Understand how stacks are used to contain the local variable frame as well as the operand stack. Know how procedure calls store local variable frames on the stack. Know what the different memory areas in the IJVM memory model contain. Understand how the 6 ALU control lines are used to indicate the different ALU functions. You do not have to memorize figure 4-2, just understand it. Datap ...

  • 20 Pages

    Lecture10-S

    UMass Dartmouth, ECE 456

    Excerpt: ... multiple interrupt lines software poll daisy chain bus arbitration How do you deal with multiple interrupts? (Lecture #2) sequential interrupt processing priorities and nested interrupt processing Dr. Xing Lecture #10 21 Interrupt-Driven I/O (7) Identifying Interrupting I/O module (1) Multiple interrupt lines between I/O modules and CPU Impractical to dedicate many bus lines to interrupt lines Limits number of devices Software poll CPU branches to a special ISR polling each module to determine the interrupting I/O module Time-consuming Dr. Xing Lecture #10 22 11 Fall'08 Interrupt-Driven I/O (8) Identifying Interrupting I/O Module (2) Daisy chain or vectored interrupt All I/O modules share a common interrupt request line Interrupt acknowledgement is sent down a daisy chain Module responsible places a vector on bus CPU uses the vector to identify the device ISR Bus arbitration Module must claim the bus before it can raise ...

  • 4 Pages

    lecture19

    University of Alabama in Huntsville, CS 513

    Excerpt: ... is with backwards daisy-chaining. The IACK line loops through each device, and any device that has a pending interrupt breaks the chain for downstream devices. When the device sees an IACK it knows that all upstream devices do not have a pending ACK, so it is free to place a vector on the bus. Thus the devices closest to the CPU will have its interrupt processed first. Forwards Daisy-chaining Backward daisy-chaining allows an IRQ to be shared, but the CPU must still process the IRQ to determine the devices priority. By looping the IRQ through each device in a forward daisy chain the interrupts of lower priority devices will be stopped until the higher priority device has received attention. Devices closest to the CPU are the highest priority in this scheme. Craig Eichelkraut Page 3 CS513 Intro to Computer Architecture Spring 2004 Interrupt Mask In practice, most CPUs have multiple interrupt lines (IRQs). A separate IRQ MASK register allows the program to enable and disable each IRQ individuall ...

  • 11 Pages

    l18_09_multiple_processors

    Appalachian State, PHY 4635

    Excerpt: ... PHY4635/5635 Spring 2009 Lecture 18: Multi-processor Systems Multiprocessor systems What weve been assuming the whole time. a.k.a. multibus or micro channel (IBM) Need something to control this interface Remote bus Access controlled by bus arbite ...

  • 3 Pages

    IO-APIC

    Fayetteville State University, I 386

    Excerpt: ... de 13: 1 XT-PIC fpu 14: 1448 IO-APIC-edge ide0 16: 28232 IO-APIC-level Intel EtherExpress Pro 10/100 Ethernet 17: 51304 IO-APIC-level eth0 NMI: 0 ERR: 0 hell:~> <- Some interrupts are still listed as 'XT PIC', but this is not a problem; none of those IRQ sources is performance-critical. In the unlikely case that your board does not create a working mp-table, you can use the pirq= boot parameter to 'hand-construct' IRQ entries. This is non-trivial though and cannot be automated. One sample /etc/lilo.conf entry: append="pirq=15,11,10" The actual numbers depend on your system, on your PCI cards and on their PCI slot position. Usually PCI slots are ' daisy chain ed' before they are connected to the PCI chipset IRQ routing facility (the incoming PIRQ1-4 lines): ,-. ,-. ,-. ,-. ,-. PIRQ4 -| |-. ,-| |-. ,-| |-. ,-| |-| | | ...

  • 2 Pages

    IO-APIC

    Allan Hancock College, I 386

    Excerpt: ... erExpress Pro 10/100 Ethernet 17: 51304 IO-APIC-level eth0 NMI: 0 ERR: 0 hell:~> <- some interrupts are still listed as 'XT PIC', but this is not a problem, none of those IRQ sources is performance-critical. in the unlikely case that your board does not create a working mp-table, you can use the pirq= boot parameter to 'hand-construct' IRQ entries. This is nontrivial though and cannot be automated. One sample /etc/lilo.conf entry: append="pirq=15,11,10" the actual numbers depend on your system, on your PCI cards and on their PCI slot position. Usually PCI slots are ' daisy chain ed' before they are connected to the PCI chipset IRQ routing facility (the incoming PIRQ1-4 lines): ,-. ,-. ,-. ,-. ,-. PIRQ4 -| |-. ,-| |-. ,-| |-. ,-| |-| | |S| \ / |S| \ / |S| \ / |S| |S| PIRQ3 -|l|-. `/-|l|-. `/-|l|-. `/-|l|-|l| |o ...

  • 3 Pages

    CS450Week13

    Illinois Tech, CS 560

    Excerpt: ... CS 450 Operating System Week 13 Lecture Notes Reading: Operating System Concepts (7th Edition) - Silberschatz, Galvin, Gagne Chapter 13 Objectives: 1. Explore the structure of an operating systems I/O subsystem. 2. Explain the principles of I/O hardware and its complexity. 3. Provide details of the performance aspects of I/O hardware and software. Concepts: 1. I/O Hardware, Bus Structure, Kernel Systems and Subsystems 2. Interrupts, Ports, Polling 3. Direct Memory Access, Clocks and Timers, Streams, Performance Outline: 1. I/O Hardware 2. Application I/O Interface 3. Kernel I/O Subsystem 4. Transferring I/O Requests to Hardware Operations 5. Streams 6. Performance References: http:/codex.cs.yale.edu/avi/os-book/os7/slide-dir/index.html CS450 Week 13 - Page1 CS 450: Week 13 Lecture Notes 1. I/O Hardware a. Common Concepts i. ii. iii. Ports Buses ( daisy chain ) Controller (host adapter) b. I/O Instruction Control Devices i. ii. Direct I/O instruction Memory Mapped I/O c. Bus Structure d ...

  • 1 Pages

    review2

    UNI, CS 041

    Excerpt: ... Test 2 will be Thursday, November 16 in class. It will be closed book and notes, except for one 8.5" x 11" sheet of paper (front and back) with notes, green MARIE Assembly Language handout, and the front page of your MIPS Assembly Language Guide (available at: http:/www.cs.uni.edu/~fienup/cs041f06/lectures). Chapter 4. Contribution of Computer Components: CPU, Bus, Memory, Clocks, I/O subsystems, Interrupts CPU Basics: Fetch-Decode-Execute machine cycle, datapath including ALU and registers, control unit Bus: types of lines (data, address, and control), types of buses (processor-memory, I/O buses), synchronous vs. asynchronous buses, bus arbitration schemes ( daisy chain , centralized parallel, distributed arbitration using self-selection, distributed arbitration using collision detection) Memory: (covered on the last test) Clocks: frequency, relationship to program performance I/O subsystems: I/O interface, memory-mapped vs. special I/O instructions Interrupts: causes, alters normal flow of execution, maskabl ...

  • 7 Pages

    xapp137

    Los Angeles Southwest College, CSCE 613

    Excerpt: ... can be pulled up to VPU. Even if the VCCO is driven, the Pullups should remain on DONE and INIT. The VPU refers to the needed IO voltage for the CPLD and PROM. Most likely this will either be 3.3 or 5.0 V. Either is acceptable to the Virtex FPGA. No translation is needed. The recommended pullup value is 4.7K ohm. This value is not critical. Smaller pullup resistors will of course increase current draw when that node is driven to a logic Low. Mbyte (8 Mbit) PROM is shown which requires a 20 bit address bus. If less than half of the PROM was to be used, or a smaller PROM in its place, then the address counter could be decreased. For connecting multiple PROMs see "Interfacing Multiple PROMs" on page 4. Write Control Register The CS and WRITE input signals to the FPGA must be asserted and held Low for configuration. If only one FPGA is being targeted for configuration these two signals may be derived from the same source. For targeting multiple FPGAs see " Daisy Chain ing Multiple FPGAs" on page 5. Configuration ...

  • 4 Pages

    hw8

    UCLA, CSM 151

    Excerpt: ... the bus arbiter as shown. Each device has its own bus request line, but all 5 devices must share the 2 grant lines from the arbiter. Hence, each grant line is daisy chain ed to the devices on that line. Since there is only 1 bus, the arbiter may issue only 1 grant to use this single bus; the arbiter can place this grant on either grant line. Until the bus is released by the device taking the grant, another grant cannot be issued. Device priorities are as follows: Device B1 B2 A1 A2 A3 Increasing Priority Highest Priority Lowest Priority An asynchronous handshaking protocol is used. Show the timing of the handshaking given the following conditions. A Device can pass the grant signal to the next lower priority device on the same daisy chain 10ns after receiving a grant signal. If the bus has not been granted to another device, the arbiter can issue a grant 20ns after it receives a bus request. Otherwise, if the bus is busy, the arbiter can issue a grant 20ns after the previous handshaking process has ...

  • 4 Pages

    Lecture_Set_8

    Sveriges lantbruksuniversitet, ENSC 460

    Excerpt: ... A mechanism within an integrated circuit that verifies part or all of an IC Included as addition circuitry Reduces reliance on automated test equipment (ATE) Design for Testability (DFT) Techniques that adds certain testability features to hardware Examples include: 2. Scan Chains (boundary scan) A method of observing every flipflop in a system When scan_enable = 1, all of the flipflops are connected as one long shift register. One input accepts data for the chip, one output pin displays output The standard for industry is JTAG (Joint Test Action Group) ENSC 460/894: Lecture Set 8 19 ENSC 460/894: Lecture Set 8 20 Verification JTAG Has a fixed interface Designed so that multiple chips can be daisy chain ed together Used for testing on printed circuit boards You program the FPGA this way Well defined Test Cases should be part of the initial specification (may even include test vectors) Testboards: A printed circuit board that enables designers to use logic analy ...

  • 7 Pages

    problems-3a

    W. Alabama, ECE 324

    Excerpt: ... E&CE 324 Microprocessor Systems and Interfacing Winter 1999 Wayne M. Loucks and William D. Bishop Homework Problem Set Solutions #3: Buses, Arbitration, and DMA 1. Define the following terms: a) Skew Time Skew time is a measure of the maximum diff ...

  • 4 Pages

    cs391-17

    Milwaukee School of Engineering, CS 391

    Excerpt: ... Could be daisy chain ed through another SPI device! 12 Two-Wire Interface (TWI) TwoTwo-wire bus Clock and Data Can transmit or receive as master or slave Transmissions contain 7 bit device address Up to 400 kbps transfer rate 2000-2008 by Henry L. Welch 4 ...

  • 9 Pages

    concentrator_box

    Penn State, CREAM 4

    Excerpt: ... Concentrator Output Diagram HV0/1 +12 V Output (to Power Supply) D11 An TDC0 Power Input TDC1 Side Logic Peak0 Daisy Chain Peak1 Reset Eth1 Eth2 (Unused) Trigger Broadcast D7 D9 D10 D12 Top View Side View Com1 Event Number Com2 (Unused) Standard Concentrator Board Layout Concentrator Peak1 Peak0 Local Trigger TDC1 TDC0 Power TCD Master Trigger Output Diagram HV0/1 +12 V Output (to Power Supply) Trigger Broadcast s3 Trigger Broadcast D7 D9 +y -y D11 An TDC0 TDC1 Peak0 Peak1 D10 D12 Top View Instrument Master Trigger Interface +x Side Logic Cer Trig Trig Daisy Chain Reset Eth1 +y Side View Power Input -x Eth2 (Unused) -y Veto Com1 s3 Side Logic Event Number Com2 (Unused) = Terminated directly to 50 Note: Side Logic ordering is not important EXCEPT for S3 with MUST be plugged into the bottom connector as shown in the diagram. TCD Master Trigger Breakout Instrument Master Trigger Interface ZHi Out Busy Out Confirm In ZLo Out Must plug in here! TCD Master Trigger (side) S3 ...

  • 1 Pages

    review2

    UNI, CS 041

    Excerpt: ... Test 2 will be Thursday, November 15 in class. It will be closed book and notes, except for one 8.5" x 11" sheet of paper (front and back) with notes and the purple MARIE Assembly Language handout. Chapter 3: (register and memory stuff not covered on Test 1) Register file - design and usage, shifting & rotating Square-memory implementation of large memories - understand (1) how the two level decoding of an address reduces the overhead for decoding, (2) how the tri-state buffers eliminate the need for MUXs, and (3) how a single-port RAM memory and two-level decoding reduces the wires to the memory chip Chapter 4. Contribution of Computer Components: CPU, Bus, Memory, Clocks, I/O subsystems, Interrupts CPU Basics: Fetch-Decode-Execute machine cycle, datapath including ALU and registers, control unit Bus: types of lines (data, address, and control), types of buses (processor-memory, I/O buses), synchronous vs. asynchronous buses, bus arbitration schemes ( daisy chain , centralized parallel, distributed arbitration ...