PIC12LF1552 PIC12LF1552 Silicon Errata and Data Sheet Clarification The PIC12LF1552 device that you have received conforms functionally to the current Device Data Sheet (DS41674B), except for the anomalies described in this document. For example, to identify the silicon revision level using MPLAB IDE in conjunction with a hardware debugger: 1. The silicon issues discussed in the following pages are for silicon revisions with the Device and Revision IDs listed in Table 1. The silicon issues are summarized in Table 2. 2. 3. The errata described in this document will be addressed in future revisions of the PIC12LF1552 silicon. 4. Note: This document summarizes all silicon errata issues from all revisions of silicon, previous as well as current. Only the issues indicated in the last column of Table 2 apply to the current silicon revision (A2). 5. Data Sheet clarifications and corrections start on page 4, following the discussion of silicon issues. The silicon revision level can be identified using the current version of MPLAB® IDE and Microchip’s programmers, debuggers, and emulation tools, which are available at the Microchip corporate web site (www.microchip.com). TABLE 1: Using the appropriate interface, connect the device to the hardware debugger. Open an MPLAB IDE project. Configure the MPLAB IDE project for the appropriate device and hardware debugger. Based on the version of MPLAB IDE you are using, do one of the following: a) For MPLAB IDE 8, select Programmer > Reconnect. b) For MPLAB X IDE, select Window > Dashboard and click the Refresh Debug Tool Status icon ( ). Depending on the development tool used, the part number and Device Revision ID value appear in the Output window. Note: If you are unable to extract the silicon revision level, please contact your local Microchip sales office for assistance. The DEVREV values for the PIC12LF1552 silicon revision are shown in Table 1. SILICON DEVREV VALUES DEVICE ID<13:0>(1),(2) Part Number PIC12LF1552 Note 1: 2: DEV<8:0> 0010 1011 110 REV<4:0> Silicon Revision A1 A2 0 0001 0 0010 The Device ID is located in the configuration memory at address 8006h. Refer to the “PIC12LF1552 Memory Programming Specification” (DS41642) for detailed information on Device and Revision IDs for your specific device. 2013 Microchip Technology Inc. DS80000578B-page 1 PIC12LF1552 TABLE 2: SILICON ISSUE SUMMARY Module CPU Note 1: Feature BRA/BRW Item Number 1.1 Affected Revisions(1) Issue Summary A1 An interrupt during execution of BRA or BRW instruction can return an incorrect PC value. A2 X Only those issues indicated in the last column apply to the current silicon revision. DS80000578B-page 2 2013 Microchip Technology Inc. PIC12LF1552 Silicon Errata Issues Note: This document summarizes all silicon errata issues from all revisions of silicon, previous as well as current. Only the issues indicated by the shaded column in the following tables apply to the current silicon revision (A2). 1. Module: CPU 1.1 BRA/BRW If a BRA or BRW instruction is executed concurrently with an interrupt event, the ISR routine can restore the PC to an incorrect value. Work around Use the GOTO instruction rather than the BRA or BRW instruction. Affected Silicon Revisions A1 A2 X 2013 Microchip Technology Inc. DS80000578B-page 3 PIC12LF1552 Data Sheet Clarifications The following typographic corrections and clarifications are to be noted for the latest version of the device data sheet (DS41674B): Note: Corrections are shown in bold. Where possible, the original bold text formatting has been removed for clarity. None. DS80000578B-page 4 2013 Microchip Technology Inc. PIC12LF1552 APPENDIX A: DOCUMENT REVISION HISTORY Rev A Document (08/2013) Initial release of this document. Rev B Document (10/2013) Added Silicon Revision A2. 2013 Microchip Technology Inc. DS80000578B-page 5 Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, dsPIC, FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MTP, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. Analog-for-the-Digital Age, Application Maestro, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O, Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA and Z-Scale are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. GestIC and ULPP are registered trademarks of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. © 2013, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. ISBN: 9781620775110 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 == DS80000578B-page 6 Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. 2013 Microchip Technology Inc. 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