Skyline programmable timing generator1

SKYptg

Skyline Programmable Timing Generator Upgrade For The Q2/52 and Q2/62 Test Systems

Skyline Test Equipment

2423 Old Middlefield Way, Suite E, Mountain View, CA 94043 USA

Phone: 650-965-2255

Fax: 650-965-2225

Website:

April 8, 2002

Copyright 2002 by Skyline Software Corporation

All information contained in this reference manual is proprietary.

Reproduction or publication of the content in any manner, without

express permission of the publisher, is prohibited. No liability

is assumed with respect to the use of the information herein.

Printed in the United States of America

Skyline programmable timing generator1

PROGRAMMABLE TIMING GENERATOR

SCOPE5

OVERVIEW6

DESCRIPTION7

INTRODUCTION7

CONTINUOUSLY ENABLED TIMING CHANNELS9

SELECTIVELY ENABLED TIMING CHANNELS9

MULTIPLE CYCLE TIMING CHANNELS9

KEYBOARD COMMANDS9

QTL COMMANDS9

INSTALLATION10

MAINTENANCE12

CALIBRATION12

VERIFICATION12

SPECIFICATIONS13

TIMING GENERATORS13

INTERFACES13

GENERAL13

WARRANTY14

Figures

Figure 1 Q2 Configuration with Q2 PTG7

Figure 2 Q2 Configuration with SKYptg8

Figure 3 SKYptg Timing Channel8

Figure 4 Continuously Enabled Timing Channel9

TABLES

Table 1 SKYptg Installation Instructions10

Table 2 SKYptg Installation Instructions (continued)11

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sCOPE

This document covers the Skyline Programmable Timing Generator upgrade for the Q2/52 and Q2/62 test systems. The chapter is organized as follows:

Overview

Description

Installation

Maintenance

Specifications

Warranty

Skyline programmable timing generator1

overview

The Skyline Programmable Timing Generator (SKYptg) is a user-installed upgrade for the Q2/52 and Q2/62 test systems

The SKYptg completely replaces all five boards of the standard PTG of the Q2 and requires no calibration. The SKYptg hardware is plug compatible with the backplane of the Q2 and either the Pattern Generation Module of the Q2/52 (PGM) or the Pattern Execution Module of the Q2/62 (PEM). SKYptg software implements the control functions of the standard PTG in the tester's host computer. It can be installed in any Q2 equipped with Skyline's PC-Host and ESCape upgrades.

Key features of the SKYptg are:

No calibration: Supports timing verification in the field. Digital design eliminates the need for calibration.

High throughput: Improves throughput of Q2 by eliminating substantial SETTIME overhead.

Compatible: Operates with existing test programs, and SRCs. Recompilation of test programs is unnecessary.

Reliable: Replaces maintenance prone PTG with new hardware in surface mount, high density CMOS technology.

Low power: Has fewer parts, lower power consumption than PTG.

Improved cooling: Results in lower Q2 operating temperature since it is more aerodynamic and smaller than standard PTG.

skyline programmable timing generator1

description

Introduction

The SKYptg replaces the Q2 PTG. It consists of two printed circuit boards, joined by a mounting bracket into a single assembly. This assembly fits into the same space used by the Q2 PTG (see Figure 1), although the option 1 slot is no longer occupied after the upgrade (see Figure 2). Installation instructions are given in a later section of this manual.

Figure 1 Q2 Configuration with Q2 PTG

Figure 2 Q2 Configuration with SKYptg

The SKYptg provides 24 independent timing channels (48 programmable edges) which can be assigned as clocks, data input phases, or output strobes. The SKYptg possesses great flexibility and power: timing edges may be placed anywhere without regard to cycle boundaries.

Each timing channel can be described as a black box with one output and two inputs (see Figure 3). The output (OUT/) is an active-low pulse with two independent edges programmed under software control. The two inputs (enable, EN/, and enable clock, ENC/) allow either continuous or selective enabling of a channel.

Figure 3 SKYptg Timing Channel

Continuously Enabled timing channels

A continuously enabled timing channel is created by tying both the EN and ENC inputs low (see Figure 4); this will produce a pulse every clock cycle whose edges are placed via program commands.

Stop edges may precede start edges to create active-high pulses on continuously enabled timing channels only.

Figure 4 Continuously Enabled Timing Channel

Selectively enabled timing channels

The SKYptg implements selectively enabled timing channels, but their use is not recommended for new designs.

multiple cycle timing channels

The SKYptg does not implement multiple cycle timing channels.

KEYBOARD COMMANDS

The SKYptg does not support the BASE, EARLY, LATE, TRULES, PTD, TG0, ]RSTART, ]RSTOP, ]DSTART and ]DSTOP commands.

QTL COMMANDS

The SKYptg does not support the BASE, EARLY, LATE, DELAY, DELAYM, TIMINGGROUP, TRULES and SENDPTG commands.

skyline programmable timing generator1

installation

CAUTION: ALWAYS USE PROPER ELECTROSTATIC DISCHARGE PROCEDURES AND EQUIPMENT WHEN INSTALLING, REMOVING, AND HANDLING CIRCUIT BOARD SUBSYSTEMS. FAILURE TO DO SO MAY RESULT IN DAMAGE TO ELECTRONIC COMPONENTS.

The procedure for installing the SKYptg upgrade is given in Table 1.

Note: PC-Host software revision 3.50 or higher must be installed and running on the host computer to use the SKYptg upgrade.

Table 1 SKYptg Installation Instructions

Activity / Detailed actions
Turn off power
Remove top cover / .Remove six screws holding top cover in place
.Lift off top cover
.Set aside in safe place
Open front access cover
Remove Signal Routing Card (SRC)
(Q2/62 only) / .Lift card off of PEM
.Set aside in safe place
Remove PEM (Q2/62) or PGM (Q2/52) / .Lift front of board assembly to disconnect Bendix connectors from PTG
.Continuing to lift front of board assembly, lift rear of board assembly
.Slide forward approximately 8 inches, then set down carefully
.Disconnect 5V power connector harness
.Disconnect two ribbon cables (PEM only)
.Remove PEM (Q2/62) or PGM (Q2/52) and set aside in safe place

Table 2 SKYptg Installation Instructions (continued)

Activity / Detailed actions
Remove old PTG / .Lift bell crank to release PTG ZIF connector (see Figure 1)
.Remove PTG unit
.Discard
Install SKYptg / .Position in FDM and option 2 slot card guides (see Figure 2)
.Press into place
.Push down bell crank to secure buffer board edge ZIF connector
Install PEM (Q2/62) or PGM (Q2/52) / .Slide board assembly through front access
.Rest board assembly approximately 8 inches from final position
.Connect two ribbon cables (PEM only)
.Connect 5V power harness
.Lift front and rear, align in final position
.Press down to connect Bendix connectors to top of SKYptg
Install SRC
(Q2/62 only) / .Place card on PEM
.Press into place on PEM connector
Close front access cover
Install top cover / .Place cover on top of tester
.Install 6 screws to secure in place
Run diagnostics tests / Note: Tester may need to be de-skewed before diagnostics will run (Q2/52 only).
It may also be necessary to adjust the system
power supplies
De-skew tester / See Q2 de-skew instructions
Verify tester / See Q2 verify instructions

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maintenance

The following sections describe calibration and verification procedures for the SkyPTG.

calibration

There is no calibration required for the SKYptg.

verification

The verification procedure for a Q2 with the SKYptg installed is the same as that for the Q2 with the old PTG installed. See Q2 documentation for details of the procedure. In addition there is a more thorough verification command 62SVER.

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specifications

Timing generators

Cycle Time — 10 to 81,920 nanoseconds

Minimum Pulse Width — 5 nanoseconds

Accuracy —

+-2 nanoseconds / 10-1000 nanosecond cycle
+-0.2 % of cycle / 1000-100,000 nanosecond cycle

Interfaces

Plug-compatible with Q2 Programmable Timing Generator (PTG)

Edge connector to motherboard

Bendix connector to PEM or PGM

General

Power —+5 volts 2.2 amps, +12 volts 0.1 amps

Temperature — 19 to 25 degrees Celsius, 66 to 77 degrees Fahrenheit

Humidity — 10 to 50 percent

Dimensions — 15" (39 cm) wide, 11" (28 cm) deep, 2" (5 cm) high

Weight — 2 kilograms, 4.4 pounds

pc-host computer - Warranty1

Warranty

Skyline Test Equipment warrants to the original purchaser in the United States of America that this product will be free of defects in material or workmanship for one year from the date of purchase under normal use.

Skyline Test Equipment's sole and exclusive liability for defects in material and workmanship shall be limited to repair or replacement at its authorized service center. This warranty does not obligate Skyline Test Equipment to bear the cost of transportation charges in connection with the repair or replacement of defective parts.

This warranty is invalid if the damage or defect is caused by accident, act of God, customer abuse, unauthorized alteration or repair, vandalism or misuse.

Any implied warranties arising out of the sale of the product including the implied warranties of merchant ability and fitness for a particular purpose are limited to the above one year period. Skyline Test Equipment shall in no event be liable for incidental, consequential, contingent or any other damages.

This warranty gives you specific legal rights, and you may have other rights which vary from State to State. Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you.