Symmetricom bc350VXI-C User Manual
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Symmetricom bc350VXI-C User Manual

Symmetricom bc350VXI-C User Manual

Time and frequency processor
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Summary of Contents for Symmetricom bc350VXI-C

  • Page 1 (217) 352-9330 | Click HERE Find the Microsemi / Symmetricom / Datum bc350VXI / bc350VXI-C at our website:...
  • Page 2 bc635VME/bc350VXI Time and Frequency Processor Revision E User’s Guide 8500-0019 January, 2004 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 3: Table Of Contents

    1.5.5 Oscillator Parameters ....................1-8 1.5.6 Sync RTC Time to External Time ................1-8 1.5.7 Board Reset........................1-8 Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 4 4.1.14.2 Upper Nibble Bit Descriptions ............... 4-16 4.1.15 Packet “Q” Set Disciplining Gain................4-17 4.1.16 Packet “S” Set Year ....................4-17 bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 5 5.5 Select Mode 0 (IRIGB)and Advance TFP 2.5 Milliseconds ..........5-3 CHAPTER SIX INPUTS AND OUTPUTS 6.0 Inputs and Outputs ........................ 6-1 CHAPTER SEVEN ADJUSTMENTS 7.0 General..........................7-1 Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 6 TABLE OF CONTENTS This Page Intentionally Left Blank. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 7: Chapter One Introduction

    GPS (optional) - double wide configuration including GPS receiver. (obsolete) GPS (optional) - uses GPS receiver/antenna (receiver in antenna). Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 8: Physical Overview

    In VXIbus systems the register block can be located at any of the 256 logical addresses (A15 and A14 must be high). The logical address is returned during an interrupt acknowledge cycle. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 9: Specifications

    20 nanoseconds minimum width 250 nanoseconds minimum period. Input impedance 10KΩ TTL/CMOS positive edge on time. External 1PPS Twenty nanoseconds minimum width. Input impedance 10KΩ Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 10: External 10Mhz Input/Output

    This allows the user to select the operating mode (time source) of the TFP device. Available modes are Time Code Decoding, Freerunning, External 1PPS, RTC & GPS (Optional). bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 11: Time Format

    The delay value is programmable in units of 100ns and has an allowed range from –9999999 through +9999999. Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 12: Days

    Note 2: Day went to 000 for about one second, then went to day 001 1.5.2 TIME CODE bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 13: Decode

    TFP device matches the value entered in the minor strobe register. The output of this circuitry is capable of creating a VME bus interrupt. Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 14: Event Input

    This function is not used during normal operation. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 15: Chapter Two Installation And Setup

    VECTOR register (discussed in Chapter Three). Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 16: Vmebus Base Address Selection

    Section 2.1 bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 17: Jumpers

    GPS sensor. In the 3-4 position the TFP is configured to use the TANS as the GPS sensor. The ACUTIME, SV-6, and TANS are GPS sensor options that are available from Symmetricom, Inc. This jumper is not present on the P100004 model boards.
  • Page 18 Jumper Location Jumper Location Revision G and Up P100004 Models 1 2 3 Figure 2-3 Jumper Locations II bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 19: Installation

    • Verify that power is off and insert the TFP into the chassis, securing it in the slot by tightening the two front panel screws. Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 20 CHAPTER TWO This Page Intentionally Left Blank. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 21: Chapter Three Interfaces

    The data format and detailed descriptions of each register are provided in the next section. Symmetricom Inc bc635VME/350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 22 * Bits 12-15 are not driven high during a read of the ID Register. In most cases they will float high during a read cycle. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 23 TIME3 Reset Value NA Offset 0X14 TIME4 Reset Value NA For clarity the above offsets have been grouped. Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 24 STROBE2 Reset Value 0x0000 Offset 0x1C STROBE3 Reset Value 0x0000 For clarity the above offsets have been grouped. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 25 Must write to this register with bit seven SET to cause TFP to take action on the data packet previously written to the input FIFO. Reserved 8-15 Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 26 4 data the number of data bytes varies byte N data byte N+1 0x17 tail byte (ASCII ETB) bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 27 The VECTOR register holds the eight bit Status/ID byte that the TFP will return during interrupt acknowledge cycles for VMEbus applications. Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 28 These bits are encoded as follows: IRQ Level Disabled IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 29: Chapter Four Fifo Data Packets

    TFP clears the FIFO, clears bit zero of the ACK register, and resumes its previous task. Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 30: Packet "A" Select Tfp Operational Mode

    This is an optional mode available with the bc637VME/bc357VXI configuration. It is described in a separate User's Guide. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 31 Note: The bc635 defaults to Mode 0 (zero). The bc637 defaults to Mode 6. Symmetricom Inc bc635VME/350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 32: Packet "B" Set Major Time

    918 millisecond point in the frame, and should reference the current frame. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 33: Packet "C" Command Input

    04-07 byte “0” - “F” bits 01-03 byte Note: All data fields must be in ASCII format. Symmetricom Inc bc635VME/350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 34: Packet "F" Heartbeat (Periodic) Control

    The periodic engine of the bc635/637VME consists of two sections of an INTEL 82C54 programmable interval timer connected in a serial configuration and driven by the TFP 10 MHz bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 35 ASCII "0" - "F" (n2 bits 4-7). byte ASCII "0" - "F" (n2 bits 0-3). byte ETB. Symmetricom Inc bc635VME/350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 36 Other values of (n1+1) and (n2+1) could have been used. For example, (n1+1) = 25 and (n2+1) = bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 37: Packet "G" Offset Control

    TFP timbers is “jammed” to the reference time so that a lengthy steering process is avoided. Symmetricom Inc bc635VME/350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 38: Packet "H" Set Time Code Format For Mode 0

    4.1.9 PACKET “J” SEND DATA TO GPS RECEIVER The format and content variations are discussed in a separate User's Guide. 4-10 bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 39: Packet "K" Select Generator Code

    All data fields must be in ASCII format. The TFP need not be in mode three when packet “L” is downloaded. Symmetricom Inc bc635VME/350VXI Time and Frequency Processor (Rev. E) 4-11 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 40: Packet "M" Local Time Offset Select (Gps Modes Only)

    East, and a negative sign is used from the prime meridian heading West. For example, Eastern Standard Time would be -05 relative to UTC. 4-12 bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 41: Packet "O" Request Data From The Tfp

    Symmetricom Inc bc635VME/350VXI Time and Frequency Processor (Rev. E) 4-13 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 42 ACK register with bit 2 set. 4-14 bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 43: Packet "P" Path Selection

    (many time-code generators start with Day 000), and are not bothered by an extra day in the year roll over. Symmetricom Inc bc635VME/350VXI Time and Frequency Processor (Rev. E) 4-15...

  • Page 44: Upper Nibble Bit Descriptions

    32 bit contiguous binary number representing GPS Epoch seconds. The minor time remains in decimal sub-seconds as reflected by Table 4-2. 4-16 bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 45: Packet "Q" Set Disciplining Gain

    This packet allows the gain and sense of the disciplining process to be set via the host bus. Originally this feature was used for Symmetricom developmental purposes, but it would also be indispensable to anyone attempting to discipline an external oscillator using the TFP. The format is as follows.
  • Page 46 CHAPTER FOUR This Page Intentionally Left Blank. 4-18 bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 47: Chapter Five Programming Examples

    The example code fragments in this chapter are written in the C programming language. The examples have been tested at Symmetricom, and should be transportable to most programming environments. A system dependent base address is defined below where “YYYY” indicates a 64 kbyte page of memory used for A16 data and “SSSS”...

  • Page 48: External Event Time Capture

    = *UNLOCK ; /* release capture lockout */ *INTSTAT = 0x01 ; /* clear INSTAT bit */ bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 49: Program Periodic Frequency Of 1000 Hz

    /* select IRIGB timecode */ send_packet("G+0025000") ; /* advance 2.5 milliseconds */ send_packet("P04") ; /* disable jamsynchs */ Symmetricom Inc bc635VME/350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 50 CHAPTER FIVE This Page Intentionally Left Blank. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 51: Chapter Six Inputs And Outputs

    TFP in place. The signals on socket J1 and plug J4 are summarized in Table 6-1 on the following page. Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 52 Periodics Output GPS +12 VDC * Pin 1 is an output when the optional ovenized oscillator is installed. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 53 GPS 1PPS (Note 1) Note: Hardware Rev. E and later. Note 2: Hardware Rev. G and later See JP6. Symmetricom Inc bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 54 CHAPTER SIX This Page Intentionally Left Blank. bc635VME/bc350VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 55: Chapter Seven Adjustments

    See Figure 7-1 below. Figure 7-1 Phase Lock Loop Adjustment Symmetricom Inc bc635VME/bc35VXI Time and Frequency Processor (Rev. E) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 56 Adjust this value to suit the equipment being driven. The range is zero to twenty-four volts peak-to-peak. bc635VME/bc35VXI Time and Frequency Processor (Rev. E) Symmetricom Inc Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 57 Santa Rosa, California 95403 USA For more information about the complete range of Quality Timing Products from the tel : 707-528-1230 Symmetricom Group of Companies, call 1-800-544-0233 in the US and Canada. fax : 707-527-6640 info symmetricom.com Or visit our site on the world wide web at http://www.symmetricom.com www.symmetricom.com...

This manual is also suitable for:

Bc350vxiBc357vxi-cBc635vme

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