7
TOWER SYSTEM
TWR-K24F120M Jumper Options
The following is a list of all jumper options available on the TWR-K24F120M. The default
installed jumper settings are indicated by white text within the red boxes.
Jumper
Option
Setting
Description
J33
Debug target
power
ON
Connect P5V_TRG_SDA to target power
OFF
Disconnect P5V_TRG_SDA from target power
J15
Enable USB
power
ON
Connect PTB23 to USB power enable on power switch MIC2005
OFF
Disconnect PTB23 from USB power enable on power switch MIC2005
J19
USB ID
connection
ON
Connect PTD7 to USB ID pin
OFF
Disconnect PTD7 from USB ID pin
J16
USB over-
current flag
ON
Connect PTB22 to over-current flag on power switch MIC2005
OFF
Disconnect PTB22 from over-current flag on power switch MIC2005
J21
USB switch
1-2
Connect MCU USB0_DP and USB0_DM pins to micro-USB
connector (J23)
2-3
Connect MCU USB0_DP and USB0_DM pins to Tower Elevator
J26
VREGIN input
to processor
1-2
Connect P5V0_VREGIN_K24 to MCU VREGIN pin
2-3
Connect on-board regulator output P3V3_REG to MCU VREGIN pin
J28
P5V0_
VREGIN_K24
selection
5-6
5V MCU input from on-board USB connector (J23)
6-8
5V MCU input from tower USB VBUS
4-6 & 1-3 5V from OpenSDA USB/TWR 5V (P5V_TRG_SDA)
