Minutes,
IEEE P1394b Working Group,
March 18, 1998,
Embassy Suites,
4400 Rurual Road,
Tempe, AZ.


Chairman:       David Wooten,
                david.wooten@compaq.com

Editor:		Eric Hannah,
		ehannah@mipos2.sc.intel.com

Secretary:      Richard Churchill,
                richard.churchill@compaq.com


Proposed Agenda
 1. Introductions
 2. Review of Agenda
 3. Review of Minutes
 4. Procedures
 4.1  Voting
 4.2  Price/Pricing
 4.3  Call for Patents
 5. Task Group Reports
 5.1  Cable/Connector - Max Bassler
 5.2  UTP - Colin Whitby-Strevens
 5.3  Upstarts - Colin Whitby-Strevens
 5.4  Standard Protocols (BPort) - Alistair Coles
 5.5  Standard Electrical - Eric Hannah
 5.6  Accelerations - Dave LaFollette
 5.7  Simulation - Prashant Kanhere
 5.8  B Low Power - Richard Churchill
 6. Extra Items
 7. Future Meetings
 7.1  April 29-30, Newport Beach, CA, Brad Saunders (Rockwell)
 7.2  June 11-12, St. Petersburg Beach, FL, Chuck Brill (AMP)
 7.3  July 13-14, Bath, UK, Colin Whitby-Strevens & Alistair Coles (ST & HP)
 7.4  August 18-19, Portland, OR, Steve Finch (SSI)
 7.5  September 10-11, Chicago, IL, Max Bassler (Molex)
 7.6  October 12-13, Maui, HI, Farrukh Latif (Lucent)
 7.7  December ??-??, TBD, TBD
 8. Review of Action Items
 9. Adjournment


Meeting came to order at roughly 8:40 AM.

 1. Introductions

 2. Review of Agenda

 3. Review of Minutes

 4. Procedures

 4.1  Voting

 4.2  Price/Pricing

 4.3  Call for Patents

 5. Task Group Reports

 5.1  Cable/Connector - Max Bassler

    Agenda
    ...

    Summary of February minutes
    - Revise ...
    ...

    Agenda for March
    - Presentations planned:
      - Bob Gannon - Bulk Cable Construction
      - Bill Northey - Proposed changes to 1394-1995 connector contacts
        - moved to next meeting
      - Bob/Al - Cable Methodology
      - Mike Fogg - Additional material on EMI/RFI testing

    Ongoing Action Items
    - EMI/RFI baseline test method
    - Cable detect pin in copper connector
      0 400
      1 400-800
      2 1600
      4 3200
    - Bulk cable specification methodology
    - Matrix of physical interfaces
    - Proposal for contact modifications
      

 5.2  UTP - Colin Whitby-Strevens

    p1394b UTP5 Task Group Mar 98 - Report
    1. Ingress Noise (Alistair Coles/Dan Dove)
      - report of various measurements - max is 20 mV differential noise
    2. Review of the current specification and open issues:-
      - Eye diagram mask for the transmitter signal at the RJ45 connector
        - based on shorthaul elec spec with an allowance for transformer, etc.
        - rmin rise time - based on short haul elec (still tbd)
      - Jitter Budget
        - needs simulations and proposal
      - Receiver sensitivity (is the new figure of 100 mV too aggressive?)
        - want even more aggressive 50 mV
      - Loss budget (max cable length plus max 4 in-line connector pairs)
        - contributions solicited
      - Testing
        - informative spec on the electrical spec at various reference points
        - normative spec at the connector (TX and RX)
        - diagrams from the short-haul electical section
      - How to spec equalization
        - in the system (after the connector), not in the cable
        - informative section on equalizer spec/example design
      - Twist in a twisted pair
        - solve logically, possibly during scrambler synch
    3. Any other business
      - VESA question - accidental connection to ethernet
        - not a problem, transformer isolation, phone ring tone on a differ-
          ent pair.

 5.3  Upstarts - Colin Whitby-Strevens

    Upstarts - Mar 98 - Report
    1. Welcome, Introductions
    2. Speed tone proposal (Peng Zhang)
      - accepted, change tho ordering of the bit encoding for future proofing
      - proposal to be put on P1394b web page
      - incorporate in to next draft
    3. Review of v4
      - port-local C code style - OK
      - clarifications to the rationale
      - minor C code bugs identified - easly to fix
      - may not need the bias filter (at least during startup)
      - may not need to do the TpBias phase repeatedly
      - need to check that TpBias interval does not cause false p1394a detect
    4. Tone frequency 122 MHz or 98 MHz?
      - go for 49 MHz - better for EMI - and related times
    5. Issues
      - Check the effect of the external p1394a electrical components
        - time to charge p the capacitor on TPA - may need to spec it care-
          fully
        - avoid false TpBias detect from the input biasing on an optical
          transceiver
      - Plug present mandatory?

    [Wooten - We asked for a plug-present at the last meeting.  We really
    only need the plug-present in cases where a connect detect is problem-
    atic, such as for optical and UTP environments ... Needs to be taken up
    with the connector folks.  Colin - I don't think this is for the Upstarts
    to decide on whether this is mandatory or not, but for the committee of
    the whole.]

 5.4  Standard Protocols (BPort) - Alistair Coles

    Bport Task Group Report
    1. ...
    2. Loss of Sync., and error reporting
    3. Test modes and methods
      - call for proposed port test facilities
      - one proposal discussed (tx. scrambler disable)

    New Control Allocation
    - New control words are scrambled and mapped to either:
      - Czz (set of 16 words as in table 10-6 of draft standard)
      - Some data words (enough to accomodate many BOSS requests
        - Warning ...
    ...

    Summary
    *** table ***
    - Notes
      - IDLE is now a BOSS Request (Request_None).
      - ESCAPE is kept in Czz table for possible (unforeseen) future use.

    Bport error reporting
    - see http://www.zayante.com/p1394b/bport/ac980304-sync.pdf
    - Principles:
      - Port monitors received invalid codeword rate to determine if
        synchronization has been lost.  If lots of errors, then port
        attempts to resynch ...
    ...



 5.5  Standard Electrical - Eric Hannah

    DC Spec.
    *** table ***
    Parm        3.3V            2.5V            1.8V
    ------------------------------------------------------------
    trans-cm    1.4-1.7         0.9-1.2         0.7-1.0
    Thigh       2.1             1.6             1.4
    Tlow        1.0             0.5             0.3
    ...

    (slide)
    *** diagram ***

    [You may have assymetrical currents out of that ... Wooten - That was
    the point!]

 5.6  Accelerations - Dave LaFollette

    P1394b Acceleration ...


    Agenda
    - Overview of new draft
    - Request types
    - mixed bus discussion
    - AOB

    Beta Mode Arbitration state machine
    *** State machine diagram ***
    (for discussion purposes only)
    .
    Beta Mode Arbitration Actions and Conditions
    int out_req(int port){
    // combine best asynch and isoch request from other ports and own request
    // return(request)
    }
    .
    void idle_actions(){
    // while !(new_req || IMM_REQ || receive_grant || data_coming)
    //    for (i = 1; i < NPORT; i++)
    //       transmit out_req(i) on each port
    }
    .
    void new_request_actions(){
    // new request received from link
    // update own_request with new request
    ...
    ...

    Request Types
    - Isoch
      - current cycle
        - >= 800
        - <= 400
      - next cycle
        - >= 800
        - <= 400
      - none
    - Asynch
      - cycle start
      - current interval
        - >= 800
        - <= 400
      - next interval
        - >= 800
        - <= 400
      - none
    - Best ...
    ...

    Request Type Prioritization
    - Cycle start must be highest priority
    - All isoch traffic must precede any asynch traffic
      - if asynch traffic slipped in, it could consumer too much bandwidth
      - legacy isoch is not done until subaction gap occurs
        - ...
    ...

    Mixed Bus Considerations
    - Subaction gaps
      - legacy bus must see subaction gaps to guarantee all nodes send their
        asynch arbitration requests
      ...
    ...

    More Mixed Bus Considerations
    - Must wait a subaction gap after <=400 asynchronous packet except ACK
    ...
    ...

    Possible Useful Tricks
    - Sort traffic by speeds to give legacy bus gaps during >= 800 traffic
    - Mixed nodes assume legacy requests until gaps indicate otherwise
      - This could help prevent beta nodes from having to wait for gaps
      - beta bus can proceed whenever there are no legacy requests
    - Separate fairness intervals for legacy and beta
      - legacy gets higher priority
      - Priorities change
      - beta takes the bus during gaps
    - Use of more request types
      - differentiate true legacy from beta <= 400
      - mark short or long packets
      - includ legacy bus state infomration
      - others?

 5.7  Simulation - Prashant Kanhere

    No presentation was offered.

 5.8  B Low Power - Richard Churchill

 6. Extra Items

 6.1  PHY-LINK Interface

    [Discussions over the last few weeks have led to the conclusion that the
    PHY-LINK task group needs to fire up again, to address some ideas and
    concerns that have come to light.  Martin Sodos has indicated that he
    would rather not lead this effort any longer.  We have a reluctant
    volunteer for chairmanship of this task group in the person of D. C.
    Sessions (VLSI), but he would rather not do so.  The desired character-
    istics for a chairman should include knowledge of both electrical and
    PHY-LINK logical issues.  Mr. Sessions is qualified on the former, but
    does not feel so on the latter.  Volunteers for this chairmanship are
    herewith solicited.  As a cautionary note, please understand that the
    chairman for a group is responsible for seeing that the work of the
    group is done, whether or not the other members of the group actually
    do anything.  So, you may end up doing the work.  In any case, D. C.
    Sessions wishes to hold a meeting of this group this afternoon at 2:00
    PM.]

 7. Future Meetings

    We need an invitation for December, and would like to have invitations
    for January.  Please contact the Group Secretary if you are willing to
    host a meeting either of these months.

    As it has become evident that we can get through the plenary meetings
    expeditiously, in the future we will try to keep the plenary meeting
    down to half a day, and allow a day-and-a-half for task group meetings.

 7.1  April 29-30, Newport Beach, CA, Brad Saunders (Rockwell)

    P1394.1 and p1212r are co-locating, meeting April 27-28, concurrently.

 7.2  June 11-12, St. Petersburg Beach, FL, Chuck Brill (AMP)

    P1394.1 is co-locating, meeting June 9-10.
    T11 is one block away, meeting June 8-11.

 7.3  July 13-14, Bath, UK, Colin Whitby-Strevens & Alistair Coles (ST & HP)

    P1394.1 and p1212r are co-locating, with p1394.1 meeting July 15 and the
    morning of July 16, and p1212r meeting the afternoon of July 16 and all
    day July 17.

 7.4  August 18-19, Portland, OR, Steve Finch (SSI)

    P1394.1 is co-locating, meeting August 20-21.

 7.5  September 10-11, Chicago, IL, Max Bassler (Molex)

    P1394.1 (and perhaps p1212r) are co-locating, meeting (concurrently)
    September 10-11.

 7.6  October 12-13, Maui, HI, Farrukh Latif (Lucent)

    P1394.1 and p1212r are co-locating, meeting concurrently on October 15-16.

 7.7  December ??-??, TBD, TBD

 8. Review of Action Items
 9. Adjournment

=============================================================================
Attendance List

Oleg Awsienko
oleg_awsienko@ccm.intel.com
602-554-9666

Steve Bard
steve.bard@intel.com
503-264-2923

Max Bassler
mbassler@molex.com
630-527-4490

Dave Brown
dave_brown@3com.com
408-764-6334

Don Chambers
chambersd@jae.com
714-753-2600

Dao-Long Chen
dao-long.chen@symbios.com
970-223-5100  x9461

Richard Churchill
richard.churchill@compaq.com
281-514-6984

Alistair Coles
anc@hplb.hpl.hp.com
+44 117 922 8750

Eric Deliot
ed@hplb.hpl.hp.com
+44 117 922 9539

Firooz Farhoomand
firoosf@ix.netcom.com
408-653-4059

Mike Fogg
mike.fogg@amp.com
717-986-5802

John Fuller
jfuller@microsoft.com
425-703-3863

Dave Gampell
dave_gampell@hp.com
408-435-6680

Eric Hannah
ehannah@mipos2.sc.intel.com
408-765-4441

Jerry Hauck
jerry_hauck@ccm.sc.intel.com
408-765-5528

Daisuke Hiraoka
dai@sm.sony.co.jp
+81 3 5448 4603


Claude Huss
claude@mew.com
650-237-2366

Tom Jones
thomas_c_jones@ccm.ch.intel.com
602-554-3569

Marcus Kellerman
marcus.c.kellerman@wdc.com
714-932-5000

Al Kelley
akelley@tensolite.com
904-829-5600 x281

Mark Knecht
mark_knecht@phoenix.com
408-570-1097

Akihito Kuwabara
akihito@sj-pceg.ccgw.nec.com
650-528-5905

Dave LaFollette
dlafolle@mipos2.sc.intel.com
408-765-2587

Paul S. Levy
paul.levy@vlsi.com
602-752-6382

Robert Liu
robert_liu@ccm.intel.com
408-765-6549

Don McCarthy
donald_mccarthy@hp.com
970-635-6818

Peter Munguia
pmunguia@sedona.intel.com
602-554-9406

Michael Musciano
musciano@lucent.com
610-712-2354

Bill Northey
northewa@bergelect.com
717-938-2119

Ozay Octay
ozay_oktay@cissc.canon.com
714-856-7180

Bijit Patel
patelb@lucent.com
610-712-2188

Bill Prouty
bprouty@hp.com
916-785-4631

Dennis Rehm
dennis.rehm@symbios.com
970-226-9602

Kyozo Saito
kyozo_s@gw3.alps.co.jp
+81 229 23 5111

Tomoki Saito
saito@ccm.cl.nec.co.jp
+81 44 856 2082

Brad Saunders
bradley.saunders@rss.rockwell.com
714-221-6513

Masood Shariff
mshariff@lucent.com
732-957-5479

John Smolka
jsmolka@ti.com
972-480-1049

John Ta
john.ta@tus.ssi1.com
714-573-6957

Ju-Ching Tang
jctang@corp.cirrus.com
510-623-8300 x5189

Michael Johas Teener
mike@zayante.com
408-461-4901

Hirosha Wakai
wakai@slab.sharp.co.jp
+81 743 65 4529

Colin Whitby-Strevens
colinws@bristol.st.com
+44 1454 611500

David Wooten
david.wooten@compaq.com
281-518-7231

Niwa Yoshikatsu
niwa@sm.sony.co.jp
+81 3 5448 4603

Patrick Yu
patrick_yu@el.nec.com
408-588-5436

Takeshi Yuasa
yuasa@ecs.tel.co.jp
+81 3 5561 7217

Peng Zhang
pzhang@ti.com
972-480-3109