TWR-56F8400 User’s Manual
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Contents
Overview .......................................................................................................................................................... 4
1.1 Block Diagram ...................................................................................................................................................................... 5
1.2 Reference Documents ....................................................................................................................................................... 5
2 Hardware Features ................................................................................................................................... 6
2.1 Tower MCU Module ........................................................................................................................................................... 6
2.2 System Power ....................................................................................................................................................................... 6
2.2.1 P5V_USB ................................................................................................................................................................................................. 6
2.2.2 P3_3V ....................................................................................................................................................................................................... 6
2.2.3 P3_3V/5V ............................................................................................................................................................................................... 7
2.2.4 Default Power Configuration ........................................................................................................................................................ 7
2.3 MC56F84789 DSC ............................................................................................................................................................... 7
2.3.1 Clock Sources for the MC56F84789 DSC ................................................................................................................................. 7
2.3.2 Serial I/O Source Select Headers ................................................................................................................................................. 8
2.3.3 LEDs Controlled by the MC56F84789 DSC ............................................................................................................................. 9
2.3.4 Motor Control Connector ............................................................................................................................................................. 10
2.3.5 Auxiliary Connectors ..................................................................................................................................................................... 11
2.3.6 Tower Elevator Connectors ........................................................................................................................................................ 14
2.3.7 Thermistors as Analog Inputs ................................................................................................................................................... 14
2.3.8 CAN Transceiver .............................................................................................................................................................................. 14
2.3.9 IRQ or Input Pushbuttons ............................................................................................................................................................ 15
2.3.10 RESET ................................................................................................................................................................................................ 15
2.3.11 JTAG Header and OSBDM/OSJTAG Disconnect Header ............................................................................................... 15
2.4 OSBDM/OSJTAG ............................................................................................................................................................... 16
2.4.1 Debug Interface ................................................................................................................................................................................ 16
2.4.2 USB Serial Bridge Interface ......................................................................................................................................................... 16
2.4.3 Clocking the OSBDM/OSJTAG MCU (MC9S08JM60) ........................................................................................................ 16
2.4.4 OSBDM/OSJTAG/UART Function Select Header ............................................................................................................... 16
2.4.5 Bootloader Enable .......................................................................................................................................................................... 17
2.4.6 BDM Header ....................................................................................................................................................................................... 17
2.4.7 OSBDM/OSJTAG Status LEDs ..................................................................................................................................................... 17
2.4.8 OSBDM/OSJTAG Voltage Translation ..................................................................................................................................... 17
3 Jumper Table ........................................................................................................................................... 18
Appendix A – Tower Elevator Connector Pin Functions .............................................................. 20
Appendix B – TWR-56F8400 Board Schematic ............................................................................... 23
Appendix C – TWR-56F8400 Board BOM .......................................................................................... 24
Appendix D – TWR-56F8400 Board Jack Layout Top View ............................................................ 1
