TWR-K40X256 Freescale Semiconductor, TWR-K40X256 Datasheet - Page 6

• Manufacturer Part Number: TWR-K40X256
• Description: TOWER SYSTEM BOARD K40X256
• Manufacturer: Freescale Semiconductor
• Series: Kinetisr
• Type: MCUr

Specifications of TWR-K40X256

• Contents: Board
• Processor To Be Evaluated: K40
• Data Bus Width: 32 bit
• Interface Type: USB, CAN, I2C, SPI, UART
• Dimensions: 3.5 in x 3.2 in
• Operating Supply Voltage: 1.71 V to 3.6 V
• Silicon Manufacturer: Freescale
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M4
• Silicon Core Number: MK
• Silicon Family Name: Kinetis - K40
• Kit Contents: Board Only
• Rohs Compliant: Yes
• For Use With/related Products: Freescale Tower System, K40X256
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Jumper Options
The following is a list of all the jumper options. The default installed jumper settings are
shown in bold.
TOWER SYSTEM
Jumper
J11
J12
J13
J15
Option
MCU Power
Connection
VBAT Power
Selection
OSJTAG
Bootloader
Selection
JTAG Board
Power Connection
Setting
ON
OFF
1-2
2-3
ON
OFF
ON
OFF
Description
Connect on-board 3.3V supply to MCU
Isolate MCU from power
(connect an ammeter to measure current)
Connect VBAT to on-board 3.3V supply
Connect VBAT to the higher voltage
between on-board 3.3V supply or
coin-cell supply
OSJTAG bootloader mode
(OSJTAG firmware reprogramming)
Debugger mode
Connect on-board 5V supply to JTAG port
(supports powering board from JTAG pod
supporting 5V supply output)
Disconnect on-board 5V supply to
JTAG port