LEC-EL User’s Guide SGET SMARC R2.1
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4.3.11 SPI0 ................................................................................................................................................................................................................................................................................................................................. 32
4.3.12 ESPI ................................................................................................................................................................................................................................................................................................................................. 33
4.4 General Purpose I2C ................................................................................................................................................................................................................................................................................................................... 34
4.4.1 GPIO................................................................................................................................................................................................................................................................................................................................ 35
4.4.2 UART ............................................................................................................................................................................................................................................................................................................................... 36
4.4.3 CAN bus ........................................................................................................................................................................................................................................................................................................................ 37
4.4.4 Miscellaneous .............................................................................................................................................................................................................................................................................................................. 37
4.4.5 Power and System Management ......................................................................................................................................................................................................................................................................... 38
4.4.6 Boot Select ................................................................................................................................................................................................................................................................................................................... 40
4.4.7 Power ............................................................................................................................................................................................................................................................................................................................. 41
4.5 SMARC pin to controller mapping ........................................................................................................................................................................................................................................................................................ 42
5. Additional Features ................................................................................................................................................................................................................................................................................................. 54
5.1 Module Feature Locations ........................................................................................................................................................................................................................................................................................................ 54
5.2 Status LEDs ..................................................................................................................................................................................................................................................................................................................................... 55
5.2.1 Exception Codes ......................................................................................................................................................................................................................................................................................................... 56
6. System Resources .................................................................................................................................................................................................................................................................................................... 57
6.1 System Memory Map ................................................................................................................................................................................................................................................................................................................. 57
6.2 Fixed I/O Address Range Map ................................................................................................................................................................................................................................................................................................ 59
6.3 Variable I/O Address Range Map........................................................................................................................................................................................................................................................................................... 60
6.4 PCI Configuration Space Map ................................................................................................................................................................................................................................................................................................. 61
6.5 PCI Interrupt Routing Map ....................................................................................................................................................................................................................................................................................................... 64
6.6 SMBus Address Table ................................................................................................................................................................................................................................................................................................................. 65
7. BIOS Configurations ............................................................................................................................................................................................................................................................................................... 66
7.2 Main .................................................................................................................................................................................................................................................................................................................................................. 67
7.2.1 Main > BIOS Information ........................................................................................................................................................................................................................................................................................ 67
7.2.2 Main > System Information ................................................................................................................................................................................................................................................................................... 67
7.2.3 Main > Board Information...................................................................................................................................................................................................................................................................................... 68
7.2.4 Main > System Date/Time ...................................................................................................................................................................................................................................................................................... 68
7.2.5 Main > Access Level ................................................................................................................................................................................................................................................................................................. 69
7.3 Advanced ........................................................................................................................................................................................................................................................................................................................................ 69
7.3.1 Advanced > CPU Configuration ........................................................................................................................................................................................................................................................................... 69
7.3.2 Advanced > Power & Performance .................................................................................................................................................................................................................................................................... 70
7.3.3 Advanced > Graphics Configuration .................................................................................................................................................................................................................................................................. 79
7.3.4 Advanced > AMI Graphic Output Protocol Policy ......................................................................................................................................................................................................................................... 81
7.3.5 Advanced > Power Management ........................................................................................................................................................................................................................................................................ 81
7.3.6 Advanced > System Management ...................................................................................................................................................................................................................................................................... 82
7.3.7 Advanced > Thermal Management .................................................................................................................................................................................................................................................................... 83