Freescale Semiconductor TWR-K21F120MA User Manual
  1. Manuals
  2. Brands
  3. Freescale Semiconductor Manuals
  4. Control Unit
  5. TWR-K21F120MA
  6. User manual

Freescale Semiconductor TWR-K21F120MA User Manual

Tower module
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
TWR-K21F120MA Tower Module
User's Manual
Rev. 0
Freescale Semiconductor, Inc.

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the TWR-K21F120MA and is the answer not in the manual?

Questions and answers

Related Manuals for Freescale Semiconductor TWR-K21F120MA

Summary of Contents for Freescale Semiconductor TWR-K21F120MA

  • Page 1 TWR-K21F120MA Tower Module User’s Manual Rev. 0 Freescale Semiconductor, Inc.

  • Page 2: Table Of Contents

    6.12 USB ........................................ 14 6.13 Secure Digital Card Slot ..............................14 6.14 External Bus Interface - FlexBus ........................... 14 7 TWR-K21F120MA Jumper Options and Headers ..............15 8 Useful links ............................17 TWR-K21F120MA Tower Module User’s Manual, Rev. 0, 09/2015...

  • Page 3: Twr-K21F120Ma

    1 TWR-K21F120MA The TWR-K21F120MA microcontroller module is designed to work either in standalone mode or as part of the Freescale Tower System, a modular development platform that enables rapid prototyping and tool re-use through reconfigurable hardware. Take your design to the next level and begin constructing your Tower System today by visiting www.freescale.com/tower...

  • Page 4: Contents

     One (1) user pushbutton switch for MCU reset  Potentiometer  Independent, battery-operated power supply for Real Time Clock (RTC) and tamper detection modules  SD Card slot TWR-K21F120MA Tower Module User’s Manual, Rev. 0, 09/2015 Freescale Semiconductor, Inc.

  • Page 5: Get To Know The Twr-K21F120Ma

    Potentiometer Regulator option selector RESET LEDs K21 Micro-USB microUSB Accelerometer Figure 2 Front side of TWR-K21F120MA module Board power selection (TWRPI devices not shown) Tamper pins USB option selector TWR-K21F120MA Tower Module User’s Manual, Rev. 0, 09/2015 Freescale Semiconductor, Inc.

  • Page 6: Reference Documents

    MCU Modules. These can be found in the documentation section of http://www.freescale.com/TWR-K21F120MA http://www.freescale.com/kinetis  TWR-K21F120MA-SCH: Schematics  TWR-K21F120MA-PWA: Design Package  K21P121M120SF5V2RM: Reference Manual  Tower Configuration Tool  Tower Mechanical Drawing TWR-K21F120MA Tower Module User’s Manual, Rev. 0, 09/2015 Freescale Semiconductor, Inc.

  • Page 7: Hardware Description

    6 Hardware description The TWR-K21F120MA is a Tower MCU Module featuring the MK21FN1M0AVMC12 a Kinetis microcontroller in a 121 MAPBGA package with USB 2.0 full-speed on-the-go (OTG) controllers and system security and tamper detection with a secure real-time clock with independent battery supply. It is intended for use in the Freescale Tower System but can also operate stand-alone.

  • Page 8: Microcontroller

    6.2 Microcontroller The TWR-K21F120MA features the MK21FN1M0AVMC12 MCU. This 120 MHz microcontroller is part of the Kinetis K2x family and is implemented in a 121 MAPBGA package. The following table notes some of the features of the MK21FN1M0AVMC12 MCU. Table 1 Features of MK21FN1M0AVMC12...
  • Page 9 External watchdog monitor drives output pin to safe state for external components in the event that a watchdog timeout occurs – Included in Freescale’s product longevity program, with assured supply for a minimum of 10 years after launch TWR-K21F120MA Tower Module User’s Manual, Rev. 0, 09/2015 Freescale Semiconductor, Inc.

  • Page 10: Clocking

    RTC are powered from the backup power supply (VBAT) and electrically isolated from the rest of the MCU. The TWR-K21F120MA provides a battery receptacle for a coin cell battery that can be used as the VBAT supply.

  • Page 11: Cortex Debug Connector

    GND Detect PTA4/FTM0_CH1/MS/NMI_b/EZP_CS_b nRESET RESET_b Target Power 5 V supply (via J6) TRACECLK PTE0/mADC0_SE10/SPI1_PCS1/UART1_TX/TRACE_CLKOUT/I2C1_SDA/RTC_CLKOUT Target Power 5 V supply (via J6) TRACEDATA[0] PTE4/LLWU_P2/SPI1_PCS0/UART3_TX/TRACE_D0 TRACEDATA[1] PTE3/ADC0_DM2/mADC0_DM1/SPI1_SIN/UART1_RTS/TRACE_D1/SPI1_SOUT TRACEDATA[2] PTE2/LLWU_P1/ADC0_DP2/mADC0_DP1/SPI1_SCK/UART1_CTS/TRACE_D2 TRACEDATA[3] PTE1/LLWU_P0/mADC0_SE11/SPI1_SOUT/UART1_RX/TRACE_D3/I2C1_SCL/SPI1_SIN TWR-K21F120MA Tower Module User’s Manual, Rev. 0, 09/2015 Freescale Semiconductor, Inc.

  • Page 12: Accelerometer

    LEDs connected to GPIO signals (optionally isolated using jumpers): o Green LED (D5) to PTD4 o Yellow LED (D6) to PTD5 o Orange LED (D8) to PTD6 o Blue LED (D9) to PTD7 TWR-K21F120MA Tower Module User’s Manual, Rev. 0, 09/2015 Freescale Semiconductor, Inc.

  • Page 13: General Purpose Tower Plug-In (Twrpi) Socket

    6.11 General Purpose Tower Plug-in (TWRPI) Socket The TWR-K21F120MA features a socket (J3 and J4) that can accept a variety of different Tower Plug-in modules featuring sensors, RF transceivers, and other peripherals. The General Purpose TWRPI socket provides access to I2C, SPI, IRQs, GPIOs, timers, analog conversion signals, TWRPI ID signals, reset, and voltage supplies.

  • Page 14: Usb

    The MK21FN1M0AVMC12 features a full-speed/low-speed USB module with OTG/Host/Device capability and built-in transceiver. The TWR-K21F120MA routes the USB D+ and D- signals from the MCU via J24 jumper either to the on- board micro-AB USB connector (J19) or to the mini-AB USB connector (J14) on the TWR-SERIAL tower board.

  • Page 15: Twr-K21F120Ma Jumper Options And Headers

    7 TWR-K21F120MA Jumper Options and Headers The following is a list of all the jumper options on the TWR-K21F120MA. The default installed jumper settings are indicated by white text on a black background. Table 5 TWR-K21F120MA Jumper Options and Headers...
  • Page 16 Connect PTD4 to green LED (D5) Connect PTD5 to yellow LED (D6) Connect PTD6 to red LED (D8) LED connections Connect PTD7 to blue LED (D9) Disconnect PTD[4:7] from associated LED TWR-K21F120MA Tower Module User’s Manual, Rev. 0, 09/2015 Freescale Semiconductor, Inc.

  • Page 17: Useful Links

    8 Useful links ► www.freescale.com • www.freescale.com/kinetis • www.freescale.com/TWR-K21F120MA • http://www.freescale.com/kds ► www.iar.com/freescale ► www.mbed.com • http://www.mbed.org/handbook/Windows-serial-configuration ► www.segger.com • http://www.segger.com/jlink-flash-download.html 9 Revision History Revision Date Description September, 2015 Initial release TWR-K21F120MA Tower Module User’s Manual, Rev. 0, 09/2015 Freescale Semiconductor, Inc.
  • Page 18 Freescale, the Freescale logo, CodeWarrior, and Kinetis are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. Tower is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners.

Table of Contents