© PHYTEC America L.L.C. 2017 3
Table of Contents
Table of Contents................................................................................................................................................................ 3
List of Figures ...................................................................................................................................................................... 5
List of Tables ....................................................................................................................................................................... 6
Conventions, Abbreviations and Acronyms........................................................................................................................ 7
Preface ................................................................................................................................................................................ 9
1 Introduction .............................................................................................................................................................. 12
1.1 Block Diagram ................................................................................................................................................... 14
1.2 Component Placement Diagram....................................................................................................................... 15
2 Pin Description .......................................................................................................................................................... 17
3 Jumpers..................................................................................................................................................................... 25
4 Power ........................................................................................................................................................................ 27
4.1 Primary System Power (VCC_SOM) .................................................................................................................. 27
4.2 Power Mode Management ............................................................................................................................... 27
4.3 Power Management IC (U2).............................................................................................................................. 28
5 Real-Time Clock (RTC) ............................................................................................................................................... 31
5.1 i.MX7 RTC .......................................................................................................................................................... 31
5.2 External RTC ...................................................................................................................................................... 31
6 System Configuration and Booting ........................................................................................................................... 32
6.1 Boot Mode Pin Settings..................................................................................................................................... 32
6.2 Boot Device Selection ....................................................................................................................................... 32
6.3 Boot Device Configuration ................................................................................................................................ 33
7 System Memory ........................................................................................................................................................ 34
7.1 DDR3 SDRAM (U3, U4) ...................................................................................................................................... 34
7.2 eMMC (U5) and NAND Flash (U6) Memory ...................................................................................................... 34
7.3 I2C EEPROM (U11) ............................................................................................................................................. 34
7.4 QSPI NOR Flash Memory (U9)........................................................................................................................... 35
7.5 Memory Model ................................................................................................................................................. 35
8 SD/MMC Card Interfaces .......................................................................................................................................... 36
9 Serial Interfaces......................................................................................................................................................... 37
9.1 USB .................................................................................................................................................................... 37
9.2 Ethernet ............................................................................................................................................................ 37
9.3 I2C ...................................................................................................................................................................... 38
9.4 PCI Express ........................................................................................................................................................ 38
10 Debug Interface..................................................................................................................................................... 39