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TBS™ Device Errata
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Document No.: PMC-2021842 Issue 2
PM5310
TBS™ Device
Telecom Bus Serializer
Device Errata
Released
Issue No. 2: February 2003
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TBS™ Device Errata
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Document No.: PMC-2021842 Issue 2
Legal Information
Copyright
Copyright 2003 PMC-Sierra, Inc. All rights reserved.
The information in this document is proprietary and confidential to PMC-Sierra, Inc., and for its
customers’ internal use. In any event, no part of this document may be reproduced or
redistributed in any form without the express written consent of PMC-Sierra, Inc.
PMC-2021842 (R1), ref PMC-1991257 (R7)
Disclaimer
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.
Trademarks
S/UNI is a registered trademark of PMC-Sierra, Inc. PMC-Sierra, TBS, and TSE are trademarks
of PMC-Sierra, Inc. Other product and company names mentioned herein may be the
trademarks of their respective owners.
Patents
The technology discussed in this document may be protected by one or more patent grants.
Contacting PMC-Sierra
PMC-Sierra
8555 Baxter Place
Burnaby, BC
Canada V5A 4V7
Tel: +1 (604) 415-6000
Fax: +1 (604) 415-6200
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TBS™ Device Errata
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Document No.: PMC-2021842 Issue 2
Document Information: document@pmc-sierra.com
Corporate Information: info@pmc-sierra.com
Technical Support: apps@pmc-sierra.com
Web Site: http://www.pmc-sierra.com
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TBS™ Device Errata
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Document No.: PMC-2021842 Issue 2
Revision History
Issue No. Issue Date Details of Change
2 March 2003 Added errata item to address maximum lead temperature
1 December 2002 Document Created
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Document No.: PMC-2021842 Issue 2
Table of Contents
Legal Information........................................................................................................................... 2
Copyright................................................................................................................................. 2
Disclaimer ............................................................................................................................... 2
Trademarks ............................................................................................................................. 2
Patents .................................................................................................................................... 2
Contacting PMC-Sierra.................................................................................................................. 2
Revision History............................................................................................................................. 4
Table of Contents........................................................................................................................... 5
List of Figures ................................................................................................................................ 6
1 Introduction ............................................................................................................................. 7
1.1 Device Identification ...................................................................................................... 7
1.2 Reference...................................................................................................................... 7
2 Device Functional Deficiency List ........................................................................................... 8
2.1 RW8D/RP8D/RA8D Block Can Receive Valid Characters on an Incorrect Character
Alignment ...................................................................................................................... 8
2.1.1 Description .................................................................................................... 8
2.1.2 Workarounds................................................................................................. 9
2.1.3 Performance With Workaround..................................................................... 9
2.1.4 Performance Without Workaround ............................................................... 9
3 Documentation Deficiency List.............................................................................................. 10
3.1 Incorrect Reference to Outgoing TelecomBus PRBS Generator (OTPG) Section ..... 10
3.2 Incorrect Reference to Receive PRBS Monitor Section ............................................. 10
3.3 Register Description Missing....................................................................................... 11
3.4 References To Unavailable Document........................................................................ 11
3.5 Incorrect Part Number For S/UNI MACH48 ................................................................ 12
3.6 0 Ohm Resistor Not Required For Analog Power Filter .............................................. 12
3.7 Absolute Maximum Lead Temperature Incorrect ........................................................ 12
Notes ........................................................................................................................................... 14
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Document No.: PMC-2021842 Issue 2
List of Figures
Figure 1 PM5310 TBS Branding Format..................................................................................... 7
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Document No.: PMC-2021842 Issue 2
1 Introduction
In this document:
• Section 2 lists the known functional errata for the production release of the PM5310 TBS™
device.
• Section 3 lists documentation errors found in PMC-1991257, Telecombus Serializer Product
Data Sheet, Issue 7.
1.1 Device Identification
The information in Section 2 relates to the production release of the PM5310 TBS device. The
device revision code is marked at the end of the Wafer Batch Code (see Figure 1) on the face of
the device. PM5310 TBS is packaged in a 352-pin Ultra Ball Grid Array (UBGA).
Figure 1 PM5310 TBS Branding Format
PM5310-BI
CD
Myyww
Pin A1
Index Mark
TOP VIE W
Part Num ber
Wafer Bat ch Code
Assem bly D ate C ode
PMC Lo go
SCALE : 1.5: 1
(APPROX)
TBS Logo
TBS
Country of Origin
TM
______ ____
1.2 Reference
1. PMC-1991257, Telecombus Serializer Product Data Sheet, Issue 7.
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Document No.: PMC-2021842 Issue 2
2 Device Functional Deficiency List
This section lists the known functional deficiencies for the production released TBS device as at
the publication date of this document. For each deficiency, the known workaround as well as the
operating constraints, with and without the workaround, are described.
Please report any functional deficiencies not covered in this errata to PMC-Sierra.
2.1 RW8D/RP8D/RA8D Block Can Receive Valid Characters on an
Incorrect Character Alignment
2.1.1 Description
During normal operation, the Serial Telecom Bus link between devices will be character
aligned. If the transmitting device is reset, it is probable that it will restart transmission at a new
character alignment. In most cases, the receiving device will detect sufficient LCV density (5
LCVs out of 15 received characters), declare out of character alignment, and proceed to hunt for
the new character alignment.
However, there are certain cases where the receiving device will not detect sufficient LCV
density when the transmitting device is reset, and subsequently transmits a new character
alignment with respect to the receiver’s current character alignment. It has been found that
sending a constant zero traffic pattern (D0.0+ and D0.0- when encoded) to the serial link will
not trigger sufficient LCVs for certain character misalignments. For example, if the character
alignment (10 alignments in total) of the transmitting and receiving device is off by 1 bit, the
receiving device will detect constant LCVs (9720 LCVs for every frame), in which case, it will
hunt for a new character alignment. If the transmitting and receiving device are off by 2 bits,
the misalignment will only produce 2 LCVs for every frame. Since the LCV density is less than
5 out of 15 characters, the receiver will not hunt for a new character alignment. This scenario
can be observed by polling the LCV counter of the receiving device. It can be seen that the
LCV counter will increment slowly as it accumulates LCV at a very slow rate (2 LCVs every
frame).
When the transmitting device sends data with a non-constant traffic pattern, the receiving device
will always get sufficient LCV density to go to an out of character alignment, and hunt for a
new alignment. A non-constant pattern can be produced by passing live traffic through the
devices, or by sending PRBS generated by either the transmitting device or by a tester.
Note: The problem outlined in this errata will not be corrected.
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2.1.2 Workarounds
To address this issue, we recommend forcing the RW8D/RP8D/RA8D decoder block to re-align
after a transmitting device is reset, and to verify that the TBS goes back to frame alignment.
Additionally, it should be verified that the RW8D/RP8D/RA8D eventually returns to frame
alignment following any change of character alignment state. Again, forcing the
RW8D/RP8D/RA8D decoder blocks to re-align if frame alignment is not restored is the
recommended approach. Re-alignment can be forced by inserting a traffic pattern that causes a
high density of LCVs on the receiver or by manually forcing the RW8D/RP8D/RA8D out of
character alignment. Each of these possible workaround individually solve the problem and
have been verified:
• Manually force the RW8D/RP8D/RA8D out of character alignment by setting the
RW8D/RP8D/RA8D FOCA bit high on the TBS link (Bit 0 of Registers 0x160, 0x170, and
0x180). This will cause the state machine in the TBS to search for a new alignment without
relying on receiving LCVs. After forcing out of character alignment, the OFAV should be
monitored. If the TSE does not go to frame alignment after two frames, the FOCA bit
should be set high again. Note that the FOCA bit should be set low first before setting high
as this bit is only effective during a low to high transition.
• Have the TBS source non-repeating traffic such as non-constant live or PRBS traffic. When
the TBS sources non-repeating traffic, it sends this traffic to the TSE, which in turn sends
the traffic back to the TBS. After the TBS receives the non-repeating traffic, any character
misalignment between the TSE and TBS will cause the TBS to detect LCV errors. There
will be enough LCV error density to force the TBS to hunt for a new character alignment.
• Enable Test Pattern Insertion on the TSE link (Bit 3 of Registers 0xNB0, 0xNB8, 0xNC0,
and 0xNC8). The TSE can be configured to send a specific 10B code to the TBS. By
sending an invalid 10B code (e.g. 0000000000b), the TBS will detect LCVs on every
character received and will be forced to hunt for a new character alignment. Once the Test
Pattern Insertion is disabled and normal traffic resumes, the RW8D/RP8D/RA8D will align
to the new character alignment of the normal traffic.
2.1.3 Performance With Workaround
The TBS will have the same character alignment as the transmitting device. The transmitting
device may be the TSE or another 8B/10B serial capable device such as another TBS or
S/UNI® MACH48 device. LCV Interrupts will not be triggered. This behavior will only occur
when sending a constant repeating pattern (e.g. zero pattern) initially when a transmitting device
is reset, and will not occur when sending live or PRBS traffic.
2.1.4 Performance Without Workaround
Occasionally, the TBS and the transmitting device (TSE or another 8B/10B serial capable
device) will not have the same character alignment after the transmitting device has re-
initialized. This causes erred traffic and LCV Interrupts. The TBS and the transmitting device
will not be correctly character aligned until non-constant live or PRBS traffic is passing through
the system. After this, the LCV interrupts will disappear. This behavior will only occur when
sending a constant repeating pattern (e.g. zero pattern) initially when a transmitting device is
reset, and will not occur when sending live or PRBS traffic.
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Document No.: PMC-2021842 Issue 2
3 Documentation Deficiency List
This section lists the known documentation deficiencies for Issue 7 of the Data Sheet, PMC-
1991257 TelecomBus Serializer Product Data Sheet as at the publication date of this document.
For each specific deficiency, the location of the passage in question, the deficient text, and the
replacement text are described. New text is shown in bold. Deleted text is shown as underlined.
For more general issues, a description of the nature of the error is given, along with a passage
that correctly describes the concept or device function.
3.1 Incorrect Reference to Outgoing TelecomBus PRBS Generator
(OTPG) Section
In Section 11.13 (Receive PRBS Monitor), Note 2 references section 11.15 as the section for the
OTPG description. Section 11.16 should be referenced instead of section 11.15.
Location
Last sentence of Note 2 in section 11.13 on Page 61.
Original Wording
The generator blocks associated with the RPPM #1 to #4 blocks are used for the OTPG blocks
described below in section 11.15.
Replacement Wording
The generator blocks associated with the RPPM #1 to #4 blocks are used for the OTPG blocks
described below in section 11.16.
3.2 Incorrect Reference to Receive PRBS Monitor Section
In Section 11.16 (Outgoing TelecomBus PRBS Generator), RPPM is incorrectly referenced to
section 11.12. It should be referenced to section 11.13. Also, RPPM should be replaced with
RPRM (Receive PRBS Monitor).
Location
First paragraph in section 11.16 on Page 62.
Original Wording
In the case of the OTPG blocks, the associated generators are the RPPM blocks described in
section 11.12.
Replacement Wording
In the case of the OTPG blocks, the associated generators are the RPRM (Receive PRBS
Monitor) blocks described in section 11.13.
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Document No.: PMC-2021842 Issue 2
3.3 Register Description Missing
Some register descriptions are missing in the data sheet.
Location
Description on page 308.
Original Wording
None.
Replacement Wording
Register 263h, 363h, 463h: RW8D #2, #3, #4 Analog Control #1
Refer to register 163h for the definition of these registers.
Register 273h, 373h, 473h: RP8D #2, #3, #4 Analog Control #1
Refer to register 173h for the definition of these registers.
Register 283h, 383h, 483h: RA8D #2, #3, #4 Analog Control #1
Refer to register 183h for the definition of these registers.
3.4 References To Unavailable Document
Some internal documents are referenced in the data sheet.
Location
Reference section on Page 21.
Original Wording
7. PMC-1990736, Transmit 8B/10B TelecomBus Encoder Telecom System Block Engineering
Document, Issue 2.
8. PMC-1990735, Receive 8B/10B TelecomBus Decoder Telecom System Block Engineering
Document, Issue 2.
9. PMC-1990758, SONET/SDH Time Slot Interchange Telecom System Block Engineering
Document, Issue 2.
10. PMC-1990848, Pseudo Random Bit Sequence (PRBS) Generator and Monitor Telecom
System Block Engineering Document, Issue 2.
11. PMC-1990737, CSU1250 and TXLVREF_1250 Analog Wrapper Telecom System Block
Engineering Document, Issue 2.
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Replacement Wording
None.
3.5 Incorrect Part Number For S/UNI MACH48
In Figure 2 of the data sheet, the S/UNI MACH48 has an incorrect part number.
Location
Figure 2 on Page 24.
Original Wording
PM5379 S/UNI-MACH48
Replacement Wording
PM7390 S/UNI-MACH48
3.6 0 Ohm Resistor Not Required For Analog Power Filter
The Power Supply Filtering section (17.3) recommends having a 0 ohm resistor on every AVDL
power pins.
Location
Section 17.3 on Page 356.
Original Wording
AVDL[2:0]: 0 ohm, 100nF, 10nF
Replacement Wording
AVDL[2:0]: 100nF, 10nF
3.7 Absolute Maximum Lead Temperature Incorrect
The maximum lead temperature specified in the datasheet is incorrect. The temperature should
be 225oC instead of 300oC.
Location
Lead Temperature field of Table 16 Absolute Maximum Ratings on page 354.
Original Wording
+300oC
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Replacement Wording
+225oC
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Notes
