AX8052F143 ERRATA Errata Silicon Errata for AX8052F143 2015−December−10 www.onsemi.com Introduction setting GPIOENABLE = 0. Libmf library routine enter_sleep() sets GPIOENABLE = 0 to avoid glitches on the microcontroller I/O pins during wakeup. There are two options In order to retain TCXO enable control by the receiver state machine during microcontroller sleep: 1. Wake up the microcontroller whenever the radio switches on the TCXO. This can be achieved with the following register settings, which cause the radio to raise an interrupt when powering up the TCXO: AX5043_IRQMASK0 |= 0x80; AX5043_POWIRQMASK = 0x90; The additional current consumption is usually negligible, as typical TCXO consumption is around 1 mA 2. Do not set GPIOENABLE = 0 when entering sleep. This is not recommended in most cases, as glitches may be observed on the I/O pins during wakeup. Affected Revisions: AX8052F143−2 This document lists silicon erratas, as well as features of the AX8052F143 that may be unexpected to the user. The issues listed in this document are for the silicon revisions listed in the table below. Table 1. Revision REVISION Register SILICONREV Register AX8052F143−2 0x51 0x8F The reader is requested to also consult the AX8052 and AX5043 Silicon Errata for additional information. Issues GPIOENABLE = 0 Disables TCXO Oscillator Control on PB2 The radio state machine may control switching on and off an external TCXO through pin PB2 by setting AX5043_PINFUNCPWRAMP[3:0] = 7 and PALTRADIO[6] = 1. This is commonly used in Wake−on−Radio (WOR) mode. This function is disabled by © Semiconductor Components Industries, LLC, 2015 December, 2015 − Rev. 2 1 Publication Order Number: AX8052F143−ERR/D AX8052F143 ERRATA ON Semiconductor and the are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries. SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor 19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: [email protected] N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5817−1050 www.onsemi.com 2 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative AX8052F143−ERR/D