TQ TQMa335xL, User Manual

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User's Manual l TQMa335xL UM 0101 l © 2019, TQ-Systems GmbH Page i
TABLE OF CONTENTS
1.
ABOUT THIS MANUAL ................................................................................................................................................................. 1
1.1 Copyright and license expenses .............................................................................................................................................. 1
1.2 Registered trademarks ................................................................................................................................................................ 1
1.3 Disclaimer ....................................................................................................................................................................................... 1
1.4 Imprint ............................................................................................................................................................................................. 1
1.5 Tips on safety ................................................................................................................................................................................. 2
1.6 Symbols and typographic conventions................................................................................................................................. 2
1.7 Handling and ESD tips ................................................................................................................................................................ 2
1.8 Naming of signals ......................................................................................................................................................................... 3
1.9 Further applicable documents / presumed knowledge................................................................................................... 3
2. BRIEF DESCRIPTION ...................................................................................................................................................................... 4
2.1 Key functions and characteristics ............................................................................................................................................ 4
2.2 Available interfaces ...................................................................................................................................................................... 5
3. ELECTRONICS ................................................................................................................................................................................. 6
3.1 System overview ........................................................................................................................................................................... 6
3.1.1 System architecture / block diagram ..................................................................................................................................... 6
3.1.2 Functionality .................................................................................................................................................................................. 6
3.1.3 Pin multiplexing ............................................................................................................................................................................ 6
3.2 System components .................................................................................................................................................................... 7
3.2.1 AM335x processor ........................................................................................................................................................................ 7
3.2.1.1 AM335x derivatives ..................................................................................................................................................................... 7
3.2.1.2 Boot modes .................................................................................................................................................................................... 8
3.2.1.3 Boot configuration ....................................................................................................................................................................... 9
3.2.1.4 Boot interfaces ........................................................................................................................................................................... 10
3.2.1.4.1 Boot device SD card .................................................................................................................................................................. 10
3.2.1.4.2 Boot device eMMC .................................................................................................................................................................... 10
3.2.2 Memory ........................................................................................................................................................................................ 11
3.2.2.1 DDR3L SDRAM ............................................................................................................................................................................ 11
3.2.2.2 eMMC NAND flash ..................................................................................................................................................................... 11
3.2.3 AM335x-RTC, PMIC-RTC ........................................................................................................................................................... 12
3.2.4 Interfaces ...................................................................................................................................................................................... 13
3.2.4.1 Overview ...................................................................................................................................................................................... 13
3.2.4.2 Gigabit Ethernet MAC .............................................................................................................................................................. 14
3.2.4.3 GPMC / External memory bus ............................................................................................................................................... 14
3.2.4.4 MMC / SD card ............................................................................................................................................................................ 15
3.2.4.5 GPIO ............................................................................................................................................................................................... 15
3.2.4.6 PWM .............................................................................................................................................................................................. 15
3.2.4.7 JTAG / DEBUG ............................................................................................................................................................................. 16
3.2.4.8 Touch and analog inputs ........................................................................................................................................................ 16
3.2.4.9 LCD controller ............................................................................................................................................................................. 17
3.2.4.10 Serial interfaces .......................................................................................................................................................................... 18
3.2.4.11 CAN ................................................................................................................................................................................................ 18
3.2.4.12 I2C .................................................................................................................................................................................................. 18
3.2.4.13 I2S / AUDMUX ............................................................................................................................................................................. 19
3.2.4.14 SPI ................................................................................................................................................................................................... 19
3.2.4.15 UART .............................................................................................................................................................................................. 20
3.2.4.16 UART0............................................................................................................................................................................................ 20
3.2.4.17 UART3............................................................................................................................................................................................ 20
3.2.4.18 UART4............................................................................................................................................................................................ 21
3.2.4.19 USB ................................................................................................................................................................................................. 21
3.2.4.20 EXTINT#......................................................................................................................................................................................... 21
3.2.4.21 Clockout ....................................................................................................................................................................................... 22