TWR-K60N512 Datasheet, PDF (6/8 Pages) Freescale Semiconductor, Inc – Low-power MCU with USB Ethernet and security

TOWER SYSTEM
Jumper Options
The following is a list of all the jumper options. The default installed jumper settings are
shown in bold.
Jumper
J8
J9
J6
J10
Option
MCU Power
Connection
VBAT Power
Selection
Setting
ON
OFF
1-2
2-3
Clock Input
1-2
Source Selection
2-3
OSJTAG
ON
Bootloader
Selection
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
Connect main EXTAL to on-board
50 MHz clock
Connect EXTAL to the CLKIN0 signal on
the elevator connector
OSJTAG bootloader mode
(OSJTAG firmware reprogramming)
Debugger mode