TWR-K40X256 Freescale Semiconductor, TWR-K40X256 Datasheet
TWR-K40X256
Specifications of TWR-K40X256
Related parts for TWR-K40X256
TWR-K40X256 Summary of contents
Page 1
... TWR-K40X256 Tower Module Freescale Semiconductor Inc. User's Manual Rev. 1.0 ...
Page 2
... TWR-K40X256 and TWR-K40X256-KIT Overview ...................................................................... 4 1.1 Contents .................................................................................................................................................................................. 5 1.2 Features .................................................................................................................................................................................. 5 1.3 Getting Started ..................................................................................................................................................................... 7 1.4 Reference Documents ....................................................................................................................................................... 7 2 Hardware Description ........................................................................................................................... 7 2.1 K40X256 Microcontroller ............................................................................................................................................... 8 2.2 Clocking .................................................................................................................................................................................. 9 2.3 System Power .................................................................................................................................................................... 10 2.3.1 RTC VBAT ........................................................................................................................................................................................... 10 2.4 Debug Interface ................................................................................................................................................................ 10 2.4.1 OSJTAG ................................................................................................................................................................................................. 10 2.4.2 Cortex Debug+ETM Connector .................................................................................................................................................. 11 2.5 Infrared Port ...................................................................................................................................................................... 11 2.6 Accelerometer ................................................................................................................................................................... 12 2 ...
Page 3
... Figure 1. Freescale Tower System Overview .............................................................................................. 4 Figure 2. Callouts on front side of the TWR-K40X256 ................................................................................ 6 Figure 3. Front side of TWR-K40X256 with TWRPI-SLCD attached............................................................. 6 Figure 4. Callouts on back side of the TWR-K40X256 ................................................................................. 7 Figure 5. TWR-K40X256 Block Diagram ...................................................................................................... 8 Figure 6. External clock source circuitry ..................................................................................................... 9 Figure 7. Infrared Port Implementation ................................................................................................... 12 Figure 8. Flexbus Connections for External Memory Port Sizes (CSCRn[BLS ................................... 15 Table 1 ...
Page 4
... EEPROM. The TWR-K40X256 is available as a stand-alone product kit (TWR-K40X256-KIT) with the Tower Elevator Modules (TWR-ELEV) and the Tower Serial Module (TWR-SER). The TWR-K40X256 can also be combined with other Freescale Tower peripheral modules to create development platforms for a wide variety of applications ...
Page 5
... TWR-SER – Serial module including USB host/device/OTG, Ethernet, CAN, RS232 and RS485 1.2 Features Figure 2, Figure 3 and Figure 4 show the TWR-K40X256 with some of the key features called out. The following list summarizes the features of the TWR-K40X256 Tower MCU Module: Tower compatible microcontroller module ...
Page 6
... Figure 2. Callouts on front side of the TWR-K40X256 Figure 3. Front side of TWR-K40X256 with TWRPI-SLCD attached TWR-K40X256 Tower Module User's Manual Page ...
Page 7
... Figure 4. Callouts on back side of the TWR-K40X256 1.3 Getting Started Follow the Quick Start Guide found printed in the TWR-K40X256 box or the interactive DVD for the list of recommended steps for getting started. There are also lab walk-through guides available on the tool support page for the TWR-K40X256: http://www.freescale.com/TWR-K40X256. ...
Page 8
... External Connectors 2.1 K40X256 Microcontroller The TWR-K40X256 module features the MK40X256VMD100. The K40 microcontroller family is part of the Kinetis portfolio of devices built around an ARM Cortex-M4 core. Refer to the K40 Family Product Brief and the K40 Family Reference Manual for comprehensive information on the MK40X256VMD100 device ...
Page 9
... CLKIN0 The clocking circuitry on the TWR-K40X256 is shown on sheet 4 of the schematics and in Figure 6. An 8.0 MHz ceramic resonator with built-in load capacitors is the default external source for the MCG oscillator inputs (XTAL/EXTAL_MAIN). A 32.768 KHz crystal is connected to the RTC oscillator inputs by default ...
Page 10
... During system power-down, the RTC is powered from the backup power supply, VBAT. The TWR-K40X256 provides a battery holder for a coin cell battery that can be used as the VBAT supply. The holder can accept common 20mm diameter 3V lithium coin cell batteries (e.g. 2032, 2025). Refer to the description J12 in Table 5 “ ...
Page 11
... TRACEDATA[3] Note: Many of the trace signals connected to the debug connector are also connected elsewhere on the TWR-K40X256. Refer to Table 6 “I/O Connectors and Pin Usage Table” and Table 7 “TWR-K40X256 Primary Connector Pinout” for more information. 2.5 Infrared Port An infrared transmit and receive interface is implemented as shown in Figure 7 below. The CMT_IRO pin directly drives an infrared diode ...
Page 12
... General Purpose Tower Plug-in (TWRPI) Socket The TWR-K40X256 features a socket that can accept a variety of different Tower Plug-in modules featuring sensors, RF transceivers, and more. The General Purpose TWRPI socket provides access to I2C, SPI, IRQs, GPIOs, timers, analog conversion signals, TWRPI ID signals, reset, and voltage supplies. ...
Page 13
... Each TSI pin implements the capacitive measurement of an electrode. The TWR-K40X256 provides two methods for evaluating the TSI module. There are four individual electrodes on-board the TWR-K40X256 that simulate pushbuttons. Additionally, twelve TSI signals are connected to a Touch Tower Plug-in (TWRPI) socket that can accept Touch TWRPI daughter cards that may feature keypads, rotary dials, sliders, etc ...
Page 14
... Secure Digital Card Slot A Secure Digital (SD) card slot is available on the TWR-K40X256 connected to the SD Host Controller (SDHC) signals of the K40 MCU. This slot will accept SD memory cards as well as Secure Digital Input Output (SDIO) cards. Refer to Table 6 “I/O Connectors and Pin Usage Table” for the SDHC signal connection details ...
Page 15
... The Primary Connector supports address lines, 8 data lines, 2 chip-selects, read/write, and output enable signals. The SDHC signals of the K40 are multiplexed over the upper FlexBus address signals (FB_AD[27:23]), so a multiplexed mode of operation is used on the TWR-K40X256. An address latch is provided to de-multiplex the address and data signals prior to connecting them to the Primary Connector ...
Page 16
... Input/Output Connectors and Pin Usage Table The following table provides details on which K40X256 pins are using to communicate with the LEDs, switches, and other I/O interfaces onboard the TWR-K40X256. Note: Some port pins are used in multiple interfaces on-board and many are potentially connected to off-board resources via the Primary and Secondary Connectors ...
Page 17
... Touch Pad / Segment LCD TWRPI Electrode 6 (J7 Pin 11) Socket Electrode 7 (J7 Pin 12) Electrode 8 (J7 Pin 13) Electrode 9 (J7 Pin 14) Electrode 10 (J7 Pin 15) Electrode 11 (J7 Pin 16) TWRPI ID0 (J7 Pin 17) TWR-K40X256 Tower Module User's Manual PTC9 PTC9 PTB11 PTB11 ― ADC1_DM1 PTA16 SSI0_RX_FS PTA13 ...
Page 18
... The TWR-K40X256 features two expansion card-edge connectors that interface to the Primary and Secondary Elevator boards in a Tower system. The Primary Connector (comprised of sides A and B) and Secondary Connector (comprised of sides C and D) are both utilized by the TWR-K40X256. Table 7 provides the pinout for the Primary Connector. Table 8 provides the pinout for the Secondary Connector ...
Page 19
... B76 EBI_D3 PTE9 B77 EBI_D2 PTE10 B78 EBI_D1 PTE11 B79 B80 EBI_D0 PTE12 B81 GND Ground B82 3.3V 3.3V Power Table 8. TWR-K40X256 Secondary Connector Pinout Side D Pin # Name D1 5V 5.0V Power D2 GND Ground D3 3.3V 3.3V Power D4 ELE_PS_SENSE Elevator Power Sense D5 GND ...
Page 20
... D65 GND Ground D66 EBI_AD20 / LCD_P42 D67 EBI_AD21 / LCD_P43 D68 EBI_AD22 / LCD_P44 D69 EBI_AD23 / LCD_P45 EBI_AD24 / LCD_P46 D70 EBI_AD25 / LCD_P47 D71 TWR-K40X256 Tower Module User's Manual Pin # Usage Name ETH_MDIO C14 ETH_RXCLK C15 ETH_RXDV C16 C17 GPIO27 / SDHC_D6 GPIO28 / SDHC_D7 C18 ...
Page 21
... LCD_D20 / LCD_P20 PTB6 D78 D79 LCD_D21 / LCD_P21 PTB7 LCD_D22 / LCD_P22 PTB8 D80 D81 GND Ground D82 3.3V 3.3V Power TWR-K40X256 Tower Module User's Manual Pin # Usage Name C72 EBI_TS_b / LCD_P34 C73 EBI_TBST_b / LCD_P35 C74 EBI_TA_b / LCD_P36 C75 EBI_CS4_b / LCD_P37 C76 EBI_CS3_b / LCD_P38 ...