Emcraft Systems
STM32F7 SOM (System-On-Module) 2/24 Version 1.6
Hardw are Archite c ture July 6, 201 7
TABLE OF CONTENTS
1. INTRODUCTION ................................................................................................................................. 3
2. HARDWARE PLATFORM .................................................................................................................. 3
2.1. HARDWARE PLATFORM OVERVIEW ...................................................................................................... 3
2.2. FUNCTIONAL BLOCK DIAGRAM ............................................................................................................ 4
2.3. MICROCONTROLLER ........................................................................................................................... 4
2.3.1. STM32F7 MCU..................................................................................................................................... 4
2.4. JTAG INTERFACE .............................................................................................................................. 4
2.5. POWER ............................................................................................................................................ 4
2.5.1. Power Source ....................................................................................................................................... 4
2.5.2. Power Modes ....................................................................................................................................... 5
2.6. SYSTEM RESET ................................................................................................................................. 5
2.6.1. Reset Architecture Overview ................................................................................................................ 5
2.6.2. Types of Syst em Resets ....................................................................................................................... 5
2.7. SYSTEM CLOCKS ............................................................................................................................... 6
2.8. SDRAM ........................................................................................................................................... 6
2.8.1. SDRAM Architecture............................................................................................................................. 6
2.8.2. SDRAM Operat i onal Mode ................................................................................................................... 6
2.8.3. SDRAM Self Refres h Mode .................................................................................................................. 6
2.9. NOR FLASH ..................................................................................................................................... 6
2.9.1. NOR Flas h Archit ect ure ........................................................................................................................ 6
2.9.2. NOR Flas h Low-Power Mode ............................................................................................................... 6
2.10. BOOT CONFIGURATION ...................................................................................................................... 6
2.11. SERIAL ............................................................................................................................................. 7
2.11.1. UART Cont rol l er ................................................................................................................................... 7
2.11.2. Serial Baud Rate .................................................................................................................................. 7
2.12. ETHERNET ........................................................................................................................................ 7
2.12.1. Et hernet Controll er ............................................................................................................................... 7
2.12.2. Ethernet Physical Layer ........................................................................................................................ 7
2.12.3. Et hernet Cl ock ...................................................................................................................................... 7
2.12.4. Ethernet Status LEDs ........................................................................................................................... 7
2.12.5. Et hernet Low Power Mode.................................................................................................................... 7
2.12.6. Et hernet Configuration .......................................................................................................................... 7
2.13. WDT ............................................................................................................................................... 8
2.14. RTC ................................................................................................................................................ 8
2.15. EXTERNAL INTERFACE........................................................................................................................ 8
2.15.1. Int erf ace Connect ors ............................................................................................................................ 8
2.15.2. Connect ors P i n-Out .............................................................................................................................. 8
2.15.3. Unavailable S i gnal s of STM32F7 ........................................................................................................ 22
3. MECHANICAL SPECIFICATIONS ................................................................................................... 22
3.1. STM32F7 SOM MECHANICALS ....................................................................................................... 22
3.2. STM32F7 SOM CONNECTOR MECHANICALS .................................................................................... 23
4. ENVIRONMENT SPECIFICATIONS ................................................................................................. 23
4.1. RECOMMENDED OPERATING CONDITIONS .......................................................................................... 23
5. ORDERING SPECIFIC ATIONS ........................................................................................................ 24
6. DOCUMENT REVISION HISTORY ................................................................................................... 24