TWR-K21D50M Freescale Semiconductor, TWR-K21D50M Datasheet
TWR-K21D50M
Specifications of TWR-K21D50M
Related parts for TWR-K21D50M
TWR-K21D50M Summary of contents
Page 1
... TWR-K21D50M Tower Module TWR-K21D50M Tower Module User’s Manual User’s Manual Rev. 1.0 Page ...
Page 2
... Block Diagram ...................................................................................................................................................................... 7 6 Hardware description ............................................................................................................................ 7 6.2 Microcontroller .................................................................................................................................................................... 8 6.3 Clocking ................................................................................................................................................................................ 10 6.4 System Power .................................................................................................................................................................... 10 6.5 Debug Interface ................................................................................................................................................................ 10 6.6 OSJTAG ................................................................................................................................................................................. 10 6.7 Accelerometer ................................................................................................................................................................... 11 6.8 Potentiometer, Pushbuttons, LEDs ........................................................................................................................... 11 6.9 General Purpose Tower Plug-in (TWRPI) Socket ............................................................................................... 12 6.10 USB ...................................................................................................................................................................................... 12 7 TWR-K21D50M Jumper Options and Headers ........................................................................... 13 8 Useful links ............................................................................................................................................. 15 Table of Contents TWR-K21D50M Tower Module User’s Manual Page ...
Page 3
... TWR-K21D50M The TWR-K21D50M 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 ...
Page 4
... Independent, battery-operated power supply for Real Time Clock (RTC) and tamper detection modules NOTE: The TWR-K21D50M contains some components that are reserved for future revisions of this board and are not functional with the MK21DN512VMB5 MCU. TWR-K21D50M Tower Module User’s Manual ...
Page 5
... JTAG Power/OSJTAG Micro-USB Regulator option selector RESET K21 Micro-USB Board power selection VBAT options JM60 BDM Figure 2. Front side of TWR-K21D50M module (TWRPI devices not shown) TWR-K21D50M Tower Module User’s Manual JM60 Bootloader Enable General Purpose TWRPI Plug-In Potentiometer LEDs Accelerometer ...
Page 6
... MCU Modules. These can be found in the documentation section of or http://www.freescale.com/kinetis • TWR-K21D50M-SCH: Schematics • TWR-K21D50M-PWA: Design Package • K21P81M50SF4RM: Reference Manual • Tower Configuration Tool • Tower Mechanical Drawing Figure 3. Back side of TWR-K21D50M TWR-K21D50M Tower Module User’s Manual http://www.freescale.com/TWR-K21D50M Page ...
Page 7
... Hardware description The TWR-K21D50M is a Tower MCU Module featuring the K21DN512VMB5—a Kinetis K Series microcontroller in a 121 MAPBGA package with a USB 2.0 full-speed on-the-go (OTG) controller, system security and tamper detection, and a secure real-time clock with an independent battery supply intended for use in the Freescale Tower System but can also operate stand-alone ...
Page 8
... Microcontroller The TWR-K21D50M features the K21DN512VMB5 MCU. This 50 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 K21DN512VMB5 MCU. Feature Description Ultra low power – – – – Flash and SRAM – ...
Page 9
... TWR-K21D50M Tower Module User’s Manual Three FlexTimers with a total of 12 channels Hardware dead-time insertion and quadrature decoding for motor control Carrier modulator timer for infrared waveform generation in remote control applications Four-channel 32-bit periodic interrupt timer provides time base for ...
Page 10
... RTC are powered from the backup power supply (VBAT) and electrically isolated from the rest of the MCU. The TWR-K21D50M provides a battery receptacle for a coin cell battery that can be used as the VBAT supply. This receptacle can accept common 3-V lithium coin cell batteries that are diameter. ...
Page 11
... LEDs connected to GPIO signals (optionally isolated using jumpers): o Green LED (D5) to PTD4 o Yellow LED (D6) to PTD5 o Red LED (D8) to PTD6 o Blue LED (D9) to PTD7 Table 2. Cortex Debug connector TWR-K21D50M Tower Module User’s Manual 2 C interface (I2C1) Page ...
Page 12
... General Purpose Tower Plug-in (TWRPI) Socket The TWR-K21D50M 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 I SPI, IRQs, GPIOs, timers, analog conversion signals, TWRPI ID signals, reset, and voltage supplies. The pinout for the TWRPI Socket is defined in Table 3 ...
Page 13
... TWR-K21D50M Jumper Options and Headers The following is a list of all of the jumper options on the TWR-K21D50M. The default installed jumper settings are indicated by white text on a black Option MCU power connection VBAT power source JTAG board power selection OSJTAG bootloader selection V_BRD power source ...
Page 14
... USB over-current flag General Purpose TWRPI V_BRD power enable Accelerometer IRQ connection Potentiometer connection LED connections GPIO RESET_OUT_B Connection TWR-K21D50M Tower Module User’s Manual Jumper Setting Connect PTC9 to USB power enable on ON power switch MIC2026 J22 Disconnect PTC9 from USB power enable on ...
Page 15
... OSBDM/OSJTAG Virtual Serial Toolkit • ► www.segger.com http://www.segger.com/jlink-flash-download.html • Revision Date 1.0 July, 2012 TWR-K21D50M Tower Module User’s Manual Revision History Description Initial release. Page ...
Page 16
... SafeAssure, SMARTMOS, TurboLink, Vybrid, and Xtrinsic are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc. 2012. All rights reserved. TWR-K21D50M-UM Rev. 1.0 08/2012 TWR-K21D50M Tower Module User’s Manual Page ...