
User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page v
FIGURE DIRECTORY
Figure 1: Block diagram MBa7x.................................................................................................................................................................................4
Figure 2: Block diagram TQMa7x..............................................................................................................................................................................7
Figure 3: Block diagram I2C buses......................................................................................................................................................................... 14
Figure 4: Position of temperature sensor LM75 on MBa7x........................................................................................................................... 15
Figure 5: Position of RTC backup battery............................................................................................................................................................ 16
Figure 6: Position of port expander D2100 ........................................................................................................................................................ 17
Figure 7: Block diagram Power and Reset .......................................................................................................................................................... 18
Figure 8: Block diagram power supply................................................................................................................................................................ 20
Figure 9: Protective circuit for VIN .......................................................................................................................................................................... 21
Figure 10: Schematics of shunts on MBa7x .......................................................................................................................................................... 22
Figure 11: Position of shunts on MBa7x ................................................................................................................................................................ 22
Figure 12: Position of power supply connectors – X26, X27........................................................................................................................... 23
Figure 13: Block diagram USB-Hosts....................................................................................................................................................................... 24
Figure 14: Position of USB-Host Top....................................................................................................................................................................... 25
Figure 15: Position of USB-Host Bottom................................................................................................................................................................ 25
Figure 16: Block diagram USB 2.0 Hi-Speed OTG................................................................................................................................................ 27
Figure 17: Position of USB 2.0 Hi-Speed OTG, X5................................................................................................................................................ 27
Figure 18: Block diagram Ethernet 100 BASE-T................................................................................................................................................... 29
Figure 19: Position of Ethernet 1000BASE-T – X8, X9........................................................................................................................................ 29
Figure 20: Block diagram CAN.................................................................................................................................................................................. 31
Figure 21: Position of CAN – X10, X11, S5 ............................................................................................................................................................. 31
Figure 22: Block diagram RS-485 ............................................................................................................................................................................. 33
Figure 23: Position of RS-485 – X12 ........................................................................................................................................................................ 33
Figure 24: Block diagram RS-232 / Debug ............................................................................................................................................................ 35
Figure 25: Position of RS-232 (X13), USB (X14) .................................................................................................................................................... 35
Figure 26: Block diagram LVDS ................................................................................................................................................................................ 37
Figure 27: Position of LVDS connectors – X15, X16 ........................................................................................................................................... 37
Figure 28: Block diagram audio................................................................................................................................................................................ 40
Figure 29: Position of audio connectors – X19, X20, X21 ................................................................................................................................. 40
Figure 30: Block diagram SD card............................................................................................................................................................................ 42
Figure 31: Position of SD card – X7 ......................................................................................................................................................................... 42
Figure 32: Block diagram Mini PCIe......................................................................................................................................................................... 43
Figure 33: Position of Mini PCIe – X17, J1900 ...................................................................................................................................................... 43
Figure 34: Position of Mini PCIe Status LEDs, V6, V7, V8................................................................................................................................... 44
Figure 35: Position of SIM card – X18 ..................................................................................................................................................................... 46
Figure 36: Clock supply PCIe assembly option 1 (standard) ........................................................................................................................... 47
Figure 37: Clock supply PCIe assembly option 2 ................................................................................................................................................ 47
Figure 38: Clock supply PCIe assembly option 3 ................................................................................................................................................ 47
Figure 39: Block diagram Smart card...................................................................................................................................................................... 48
Figure 40: Position of Smart card X6....................................................................................................................................................................... 48
Figure 41: Block diagram headers X23, X24, X25................................................................................................................................................ 49
Figure 42: Position of headers – X23, X24, X25 ................................................................................................................................................... 49
Figure 43: Position of diagnostic LEDs................................................................................................................................................................... 53
Figure 44: Block diagram navigations buttons.................................................................................................................................................... 54
Figure 45: Position of navigations buttons – S11, S12, S13............................................................................................................................. 54
Figure 46: Block diagram Boot Mode DIP switches S1 to S4........................................................................................................................... 55
Figure 47: Position of Boot Mode DIP switches S1 to S4.................................................................................................................................. 56
Figure 48: Block diagram buzzer.............................................................................................................................................................................. 58
Figure 49: Position of buzzer – N2000.................................................................................................................................................................... 58
Figure 50: Block diagram JTAG................................................................................................................................................................................. 59
Figure 51: Position of JTAG – X22............................................................................................................................................................................ 59
Figure 52: MBa7x dimensions................................................................................................................................................................................... 61
Figure 53: Component placement top .................................................................................................................................................................. 62
Figure 54: Component placement bottom .......................................................................................................................................................... 63