...the world's most energy friendly microcontrollers EFM32HG321 Errata, Chip Rev. B F64/F32 This document describes errata for the latest revision of EFM32HG321 devices. ...the world's most energy friendly microcontrollers 1 Errata This document contains information on the errata of the latest revision of this device. For errata on older revisions, please refer to the errata history for the device. The device data sheet explains how to identify chip revisions, either from package markings or electronically. In addition to the errata noted below, the errata for the ARM Cortex-M0+ r0p1 (www.arm.com) also applies to this device. 1.1 Chip revision B Table 1.1. Erratas ID Title/Problem Effect Fix/Workaround IDAC_E101 IDAC output current degradation Due to an undefined shut-down state of the IDAC, powered devices that do not use the IDAC continuously might experience some degradation in the current output over the lifetime of the device. The degradation is very small when the device is used at room temperature, but the output current will fall well outside specs if the device is exposed to higher temperatures for longer periods of time. If the IDAC output current stability is crucial to the application, the IDAC should never be completely disabled while the device is powered. Leaving the IDAC enabled in the lowest output code setting with duty-cycling enabled consumes ~50 nA extra current and eliminates the problem. The current output of the IDAC might degrade over time. PCNT_E102 PCNT Pulse Width Filtering does not work The PCNT Pulse Width Filter does not work as intended. Do not use the pulse width filter, i.e. ensure FILT = 0 in PCNTn_CTRL. USB_E111 Using EM2 with system running on USHFRCO Entering EM2 when both the system clock (HFCLK) and the USB core clock (USBCCLK) are running on USHFRCO will result in a lock-up. Use either HFRCO or HFXO for the system clock (HFCLK) if EM2 is employed in USB applications. Alternatively, the EMVREG bit in EMU_CTRL can be set. This allows EM2 to be used at the cost of extra current consumption in EM2. In rare cases with high data throughput, a transmission can fail when this mode is enabled. Use the GATED mode of LEMOSCCTRL for the best energy efficiency. The NONE mode can be used to disable energy savings. Running the system on USHFRCO will not work with EM2 in USB applications. USB_E112 SUSPEND in LEMOSCCTRL Do not use the SUSPEND mode of LEMOSCCTRL in USB_CTRL. 1.2 Older Revisions Erratas for older revisions can be found at the Silicon Laboratories homepage: www.silabs.com/32bit-errata 2016-01-06 - EFM32HG321FXX - d0308_Rev1.00 2 www.silabs.com ...the world's most energy friendly microcontrollers 2 Revision History 2.1 Revision 1.00 January 6th, 2016 Moved to revision B. Removed preliminary. 2.2 Revision 0.93 October 5th, 2015 Added RMU_E101. 2.3 Revision 0.92 May 11th, 2015 Added PKG_E101. 2.4 Revision 0.91 May 1st, 2015 Added USB_E112. 2.5 Revision 0.90 March 16th, 2015 Added USB_E111. 2.6 Revision 0.01 November 20th, 2014 2016-01-06 - EFM32HG321FXX - d0308_Rev1.00 3 www.silabs.com ...the world's most energy friendly microcontrollers Initial preliminary release. 2016-01-06 - EFM32HG321FXX - d0308_Rev1.00 4 www.silabs.com ...the world's most energy friendly microcontrollers A Disclaimer and Trademarks A.1 Disclaimer Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories reserves the right to make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information. Silicon Laboratories shall have no liability for the consequences of use of the information supplied herein. This document does not imply or express copyright licenses granted hereunder to design or fabricate any integrated circuits. The products must not be used within any Life Support System without the specific written consent of Silicon Laboratories. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant personal injury or death. Silicon Laboratories products are generally not intended for military applications. Silicon Laboratories products shall under no circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons. A.2 Trademark Information Silicon Laboratories Inc., Silicon Laboratories, Silicon Labs, SiLabs and the Silicon Labs logo, CMEMS®, EFM, EFM32, EFR, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZMac®, EZRadio®, EZRadioPRO®, DSPLL®, ISOmodem®, Precision32®, ProSLIC®, SiPHY®, USBXpress® and others are trademarks or registered trademarks of Silicon Laboratories Inc. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of ARM Holdings. Keil is a registered trademark of ARM Limited. All other products or brand names mentioned herein are trademarks of their respective holders. 2016-01-06 - EFM32HG321FXX - d0308_Rev1.00 5 www.silabs.com ...the world's most energy friendly microcontrollers B Contact Information Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Please visit the Silicon Labs Technical Support web page: http://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to submit a technical support request. 2016-01-06 - EFM32HG321FXX - d0308_Rev1.00 6 www.silabs.com ...the world's most energy friendly microcontrollers Table of Contents 1. Errata ....................................................................................................................................................................................................................................... 1.1. Chip revision B ................................................................................................................................................................................................................. 1.2. Older Revisions ................................................................................................................................................................................................................ 2. Revision History .......................................................................................................................................................................................................................... 2.1. Revision 1.00 ................................................................................................................................................................................................................... 2.2. Revision 0.93 ................................................................................................................................................................................................................... 2.3. Revision 0.92 ................................................................................................................................................................................................................... 2.4. Revision 0.91 ................................................................................................................................................................................................................... 2.5. Revision 0.90 ................................................................................................................................................................................................................... 2.6. Revision 0.01 ................................................................................................................................................................................................................... A. Disclaimer and Trademarks .......................................................................................................................................................................................................... A.1. Disclaimer ....................................................................................................................................................................................................................... A.2. Trademark Information ....................................................................................................................................................................................................... B. Contact Information ..................................................................................................................................................................................................................... B.1. ..................................................................................................................................................................................................................................... 2016-01-06 - EFM32HG321FXX - d0308_Rev1.00 7 www.silabs.com 2 2 2 3 3 3 3 3 3 3 5 5 5 6 6 ...the world's most energy friendly microcontrollers List of Tables 1.1. Erratas .................................................................................................................................................................................................................................... 2 2016-01-06 - EFM32HG321FXX - d0308_Rev1.00 8 www.silabs.com