Hardware Revision Marking on PCBV1.1 0473 SANTARO V1.1V1.1.1 0473 SANTARO V1.1.1V1.2 0473 SANTARO V1.2Platform Article Number Marking on PCBSANTARO core x1 900-3040R 0473 SANTARO V1.2SANTARO core x2 900-3045R 0473 SANTARO V1.2SANTARO core x4 900-3048R 0473 SANTARO V1.23 5PRODUCT MANUALSANTARO coreAnnex A: Hardware Revision InformationThis document is applicable for all products listed below. Please note that customized variants might possiblynot support all features listed herein. Additional features are documented in specific attachments.Hardware changes made from V1.1 to V1.1.1- Reverse current protection for internal coin cell battery added.- SDIO inrush-current tolerance improved.- Connector for external backup battery added in case of absence of internal battery holder.- SRAM accessibility while booted from SD-CARD added.Hardware changes made from V1.1.1 to V1.2- RTS/CTS of RS232 interfaces corrected.- Reset and Watchdog now leads into PMIC power cycle allowing low core voltage in idle mode.- PMIC revision changed to F0A version. Eliminating power-up problems.- Audio codec power supply workaround added to prevent I2C-Bus from being blocked.- Ethernet Link-Led polarity corrected. Lit while link is up.- HDMI Filtering added.- Micro USB Connector changed to type with enhanced mechanical strength