Table Of Contents - TQ-Systems TQMLS1028A Preliminary User's Manual

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 ............................................................................................................................................................................. 3
3. OVERVIEW .............................................................................................................................................................................................. 4
3.1 Block diagram ....................................................................................................................................................................................... 4
3.2 System components ........................................................................................................................................................................... 4
4. ELECTRONICS ........................................................................................................................................................................................ 5
4.1 LS1028A CPU ......................................................................................................................................................................................... 5
4.1.1 LS1028A variants, block diagrams .................................................................................................................................................. 5
4.1.2 LS1028A variants, details ................................................................................................................................................................... 7
4.2 Reset Logic and Supervisor ............................................................................................................................................................... 7
4.2.1 Supervisor .............................................................................................................................................................................................. 7
4.2.2 Self-Reset ................................................................................................................................................................................................ 8
4.2.3 JTAG-Reset TRST# ................................................................................................................................................................................ 8
4.3 CPU Configuration ............................................................................................................................................................................... 9
4.3.1 RCW Source ........................................................................................................................................................................................... 9
4.3.2 Configuration signals.......................................................................................................................................................................... 9
4.3.3 Reset Configuration Word .............................................................................................................................................................. 10
4.3.4 Settings via Pre-Boot-Loader PBL ................................................................................................................................................ 10
4.3.5 Error handling during RCW loading. ........................................................................................................................................... 10
4.4 System Controller ............................................................................................................................................................................. 10
4.5 System Clock ...................................................................................................................................................................................... 11
4.6 Flash ...................................................................................................................................................................................................... 11
4.6.1 QSPI NOR Flash .................................................................................................................................................................................. 11
4.6.2 eMMC / SD card ................................................................................................................................................................................. 11
4.7 SDRAM.................................................................................................................................................................................................. 11
4.8 EEPROM ............................................................................................................................................................................................... 12
4.8.1 Data EEPROM 24LC256T ................................................................................................................................................................. 12
4.8.2 Configuration EEPROM SE97B ...................................................................................................................................................... 12
4.9 RTC......................................................................................................................................................................................................... 13
4.10 Temperature monitoring................................................................................................................................................................ 13
4.11 Supply................................................................................................................................................................................................... 13
4.12 Power consumption ......................................................................................................................................................................... 14
4.12.1 Power consumption CPU ............................................................................................................................................................... 14
4.12.2 Power consumption TQMLS1028A ............................................................................................................................................. 14
4.13 Voltage monitoring .......................................................................................................................................................................... 14
4.14 Interfaces to other systems and devices .................................................................................................................................... 15
4.14.1 UART ..................................................................................................................................................................................................... 15
4.14.2 I C bus ................................................................................................................................................................................................... 15
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4.14.3 JTAG ...................................................................................................................................................................................................... 15
4.15 TQMLS1028A interfaces .................................................................................................................................................................. 15
4.15.1 Pin multiplexing ................................................................................................................................................................................ 15
4.15.2 Pinout TQMLS1028A ........................................................................................................................................................................ 16
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