NXP Semiconductors i.MX6ULL - User Manual

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Content
1．NXP i.MX6ULL chip introduction ...................................................................................................1
2. WT-SOM6ULX schematic and testing description ...........................................................3
2.1 WT-SOM6ULX diagram and shematic .................................................................................................3
2.2 WT-SOM6ULX power management .....................................................................................................4
2.3 i.MX6ULL related power supply domain’s ripple test ....................................................................4
3． Based WT-SOM6ULX’s baseboard power system design ..........................................5
3.1 Core boards power on sequence and typical supply circuit ....................................................5
3.2 About reset ....................................................................................................................................................6
3.3 ON/OFF and wakeup .................................................................................................................................7
4. Startup related circuit design ....................................................................................................................7
4.1 Startup mode and stardup device .........................................................................................................7
4.2 Other startup related hardware notice .......................................................................................... 10
5． TF/SD card circuit design ............................................................................................................. 10
6．LCD interface circuit ........................................................................................................................... 11
7．Touch screen interface circuit ...................................................................................................... 12
7.1 Resistive TP circuit ..................................................................................................................................... 13
7.2 Capacitive TP .............................................................................................................................................. 13
8. IIC interface ................................................................................................................................................ 14
9. USB interface ............................................................................................................................................. 15
10. Ethernet interface ................................................................................................................................. 16
11. Serial port ................................................................................................................................................... 19
12. Audio interface....................................................................................................................................... 20
13. RTC circuit ................................................................................................................................................. 21
14. PWM ............................................................................................................................................................. 21
15. SPI .................................................................................................................................................................. 21
16. CAN bus ..................................................................................................................................................... 22
17. CSI camera interface ........................................................................................................................... 23

NXP Semiconductors i.MX6ULL Specifications