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| PRELIMINARY ERRATA PMC-980356 ISSUE 1 PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH ERRATA PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH REVISION B DEVICE ERRATA ISSUE 1: APRIL 1998 PRELIMINARY PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS' INTERNAL USE PRELIMINARY ERRATA PMC-980356 ISSUE 1 PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH ERRATA CONTENTS 1 2 3 ISSUE 1 ERRATA...................................................................................1 FUNCTIONAL DISCREPANCIES OVERVIEW ......................................2 HARDWARE ERRATA ............................................................................3 3.1 4 NONE KNOWN............................................................................3 DATASHEET ERRATA ............................................................................4 4.1 4.2 FEATURES - PAGE 6 ..................................................................5 DPO WINDOWED REGISTER DESCRIPTION - PAGE 248 ....................................................................................6 5 CONTACTING PMC-SIERRA, INC.........................................................7 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS' INTERNAL USE i PRELIMINARY ERRATA PMC-980356 ISSUE 1 PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH ERRATA 1 ISSUE 1 ERRATA This document is the errata notice for Revision B of the ELAN 1x100 (PM3351RA) and issue 3 ELAN 1x100 datasheet. The issue 3 ELAN 1x100 datasheet (PMC-970113) and issue 1 errata supersede all prior editions and versions of the datasheet. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS' INTERNAL USE 1 PRELIMINARY ERRATA PMC-980356 ISSUE 1 PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH ERRATA 2 FUNCTIONAL DISCREPANCIES OVERVIEW This section outlines the known functional discrepancies between the PM3351 ELAN 1x100 revision B device and the Issue 3 ELAN 1x100 datasheet. The errata are explained in more detail in following sections. Please note that the errata contained in this document are preliminary. Table 1 Hardware Errata # 3.1 Discrepancy None known Workaround? N/A Performance without workaround FUNCTIONAL DISCREPANCIES LIST Datasheet Errata # 4.1 Errata Features PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS' INTERNAL USE 2 PRELIMINARY ERRATA PMC-980356 ISSUE 1 PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH ERRATA 3 HARDWARE ERRATA This section contains errata which reflects chip level discrepancies. 3.1 None Known Description None known Software Workaround: N/A Performance With Workaround: N/A PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS' INTERNAL USE 3 PRELIMINARY ERRATA PMC-980356 ISSUE 1 PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH ERRATA 4 DATASHEET ERRATA The section contains errata in the issue 3 ELAN 1x100 datasheet. Datasheet Errata Legend 1. 2. 3. Unaltered text is unchanged to add context to changes New material is bold and italicized Obsolete material is struck out 4. Comments specific to this document are in italics PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS' INTERNAL USE 4 PRELIMINARY ERRATA PMC-980356 ISSUE 1 PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH ERRATA 4.1 Features - page 6 * * Implements the Link Partition function to isolate malfunctioning segments or hosts. IEEE 802.1d compliant spanning-tree transparent bridging supported on-chip, with Factory configurable aging time and packet lifetime control. Aging is implemented with firmware version 2.12. The remainder of 802.1d will be implemented in a future release and will run on a companion PM3350. * Flow control supported for both full duplex and half duplex operation: supports IEEE 802.3x PAUSE frame flow control in full duplex mode, and Supports user factory enabled backpressure flow control in half duplex mode with configurable buffer thresholds and limits. Backpressure is implemented with firmware version 2.12. Full duplex flow control will available in a future firmware release. User control of backpressure will be available with the release of the Enterprise MIB scheduled for a future firmware release. * Configuration, management, MIB statistics and diagnostics available in-band or out of band. Management capability is not implemented with firmware version 2.12. SNMP will be implemented in a future release but will only run on a companion PM3350. * Maintains and collects per-port and per-host statistics at wire rates, allowing a network switch comprised of PM3351 and PM3350 chips to implement RMON statistics (EtherStats and HostStats) using an external CPU. PMC supplied on-chip firmware. The statistics identified above are collected in firmware release 2.12. No on-chip firmware is planned to run RMON. These statistics can be made available to an external CPU for RMON processing. A future firmware release will implement this functionality. Note: All other references in the datasheet to the features discussed above should be interpreted to reflect the above comments and edits. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS' INTERNAL USE 5 PRELIMINARY ERRATA PMC-980356 ISSUE 1 PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH ERRATA 4.2 DPO Windowed Register Description - page 248 RSIZE[3:0] (DPO windowed: one per transfer ring): size of the transfer ring. This register value must be static during switch operation and is initialized by the Switch Processor. Value 4'd0 4'd1 4'd2 4'd3 4'd4 4'd5 4'd6 4'd7 4'd8 4'd9 4'd10 4'd11 4'd12 4'd13 4'd14 4'd15 4'd8 4'd9 4'd10 4'd11 4'd12 4'd13 4'd14 4'd15 Size of Ring 32 64 128 256 512 1024 (1K) 2048 (2K) 4K 8K 16K 32K 64K 64K 64K 64K 64K Illegal Illegal Illegal Illegal Illegal Illegal Illegal Illegal PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS' INTERNAL USE 6 PRELIMINARY ERRATA PMC-980356 ISSUE 1 PM3351 ELAN 1X100 10/100 MBIT/S ETHERNET SWITCH ERRATA 5 CONTACTING PMC-SIERRA, INC. PMC-Sierra, Inc. 105-8555 Baxter Place Burnaby, BC Canada V5A 4V7 Tel: Apps Support: Fax: (604) 415-6000 (604) 415-4533 (604) 415-6200 document@pmc-sierra.com info@pmc-sierra.com apps@pmc-sierra.com http://www.pmc-sierra.com Document Information: Corporate Information: Application Information: Web Site: None of the information contained in this document constitutes an express or implied warranty by PMC-Sierra, Inc. as to the sufficiency, fitness or suitability for a particular purpose of any such information or the fitness, or suitability for a particular purpose, merchantability, performance, compatibility with other parts or systems, of any of the products of PMC-Sierra, Inc., or any portion thereof, referred to in this document. PMC-Sierra, Inc. expressly disclaims all representations and warranties of any kind regarding the contents or use of the information, including, but not limited to, express and implied warranties of accuracy, completeness, merchantability, fitness for a particular use, or non-infringement. In no event will PMC-Sierra, Inc. be liable for any direct, indirect, special, incidental or consequential damages, including, but not limited to, lost profits, lost business or lost data resulting from any use of or reliance upon the information, whether or not PMC-Sierra, Inc. has been advised of the possibility of such damage. (c) 1998 PMC-Sierra, Inc. PMC-971029 (R2) ref PMC-970133 (R2) Issue date: February 1998 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS' INTERNAL USE 7 |
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