PIC16(L)F1574/5/8/9 PIC16(L)F1574/5/8/9 Family Silicon Errata and Data Sheet Clarification The PIC16(L)F1574/5/8/9 family devices that you have received conform functionally to the current Device Data Sheet (DS40001782B), 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 PIC16(L)F1574/5/8/9 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 (A1). 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: 5. 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 various PIC16(L)F1574/5/8/9 silicon revisions are shown in Table 1. SILICON DEVREV VALUES Part Number Device ID(1) Revision ID for Silicon Revision(2) A1 PIC16F1574 3000h 2001h PIC16F1575 3001h 2001h PIC16F1578 3002h 2001h PIC16F1579 3003h 2001h PIC16LF1574 3004h 2001h PIC16LF1575 3005h 2001h PIC16LF1578 3006h 2001h PIC16LF1579 3007h 2001h Note 1: 2: The Device IDs (DEVID and DEVREV) are located at the last two implemented addresses of configuration memory space. They are shown in hexadecimal in the format “DEVID DEVREV”. Refer to the “PIC16(L)F157X Memory Programming Specification” (DS40001766) for detailed information on Device and Revision IDs for your specific device. 2015 Microchip Technology Inc. DS80000642B-page 1 PIC16(L)F1574/5/8/9 TABLE 2: SILICON ISSUE SUMMARY Module Feature Item Number Issue Summary Affected Revisions(1) A1 Enhanced Universal Synchronous Receiver Transmitter (EUSART) Transmit mode 1.1 Possible duplicate byte transmitted. X 16-Bit Pulse-Width Modulation (PWM) Continuous Run Slave Offset 2.1 Anomalous behavior. X Note 1: Only those issues indicated in the last column apply to the current silicon revision. DS80000642B-page 2 2015 Microchip Technology Inc. PIC16(L)F1574/5/8/9 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 Affected Silicon Revisions tables apply to the current silicon revision (A1). 1. Module: Enhanced Universal Synchronous Receiver Transmitter (EUSART) 1.1 Transmit Mode Under certain conditions, a byte written to the TXREG register can be transmitted twice. This happens when a byte is written to TXREG just as the TSR register becomes empty. This new byte is immediately transferred to the TSR register, but also remains in the TXREG register until the completion of the current instruction cycle. If the new byte in the TSR register is transmitted before this instruction cycle has completed, the duplicate in the TXREG register will subsequently be transferred to the TSR register on the following instruction clock cycle and transmitted. 2. Module: 16-Bit Pulse-Width Modulation (PWM) 2.1 Continuous Run Slave Offset Mode Anomaly The 16-bit PWM in Continuous Run Slave mode (PWMxOFTCON<6:5>=11) may get stuck in anomalous behavior. The behavior is that the slave PWM output will toggle when the master PWM matches the master PWM offset value, then toggle again on the next master offset match event. The slave PWM output will then remain steady for the number of master periods equal to the slave PWM period value, after which the sequence repeats. The slave PWM may occasionally start to operate as described by either writing the slave PWMxOFTCON register or enabling the slave PWM from an Idle state. Work around None. Affected Silicon Revisions A1 X Work around When transmitting bytes, it is common practice to check the TXIF bit before writing to the TXREG register. To avoid the issue of duplicate bytes being transmitted, a NOP should be placed before the write to the TXREG register. This changes the timing so that the issue does not occur. The TRMT bit can also be checked in addition to or instead of the TXIF bit to determine if TXREG can be written without causing a duplicate-byte transmission. If the transmit interrupt is enabled then, inside the ISR, testing the TRMT bit will avoid transmission of a duplicate byte. Affected Silicon Revisions A1 X 2015 Microchip Technology Inc. DS80000642B-page 3 PIC16(L)F1574/5/8/9 Data Sheet Clarifications The following typographic corrections and clarifications are to be noted for the latest version of the device data sheet (DS40001782B). Note: Corrections are shown in bold. Where possible, the original bold text formatting has been removed for clarity. None. DS80000642B-page 4 2015 Microchip Technology Inc. PIC16(L)F1574/5/8/9 APPENDIX A: DOCUMENT REVISION HISTORY Rev A Document (2/2015) Initial release of this document. Rev B Document (9/2015) Added Module 1 and 2: EUSART and 16-bit PWM. 2015 Microchip Technology Inc. DS80000642B-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 unless otherwise stated. Trademarks The Microchip name and logo, the Microchip logo, dsPIC, FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer, LANCheck, MediaLB, MOST, MOST logo, MPLAB, OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC, SST, SST Logo, SuperFlash and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. The Embedded Control Solutions Company and mTouch are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet, KleerNet logo, MiWi, motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, RightTouch logo, REAL ICE, SQI, Serial Quad I/O, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA 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. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. GestIC is a registered trademark 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. © 2015, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. ISBN: 978-1-63277-851-2 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 == DS80000642B-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. 2015 Microchip Technology Inc. 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