TWR-S12G128-KIT Freescale Semiconductor, TWR-S12G128-KIT Datasheet - Page 15

• Manufacturer Part Number: TWR-S12G128-KIT
• Description: TOWER KIT S12G128
• Manufacturer: Freescale Semiconductor

T W R - 9 S 1 2 G 1 2 8
U S E R
User LED’s
The TWR-S12G128 target board applies 4, green, LEDs for output indication. Each LED is
configured for active-low operation. A series, current-limit resistor prevents excessive diode
current. Each LED is connected to a timer channel on the target MCU. Figure 12 below
shows the USER jumper settings.
Pushbutton Switches
The TWR-S12G128 provides 4 push-button switches for user input. Each push-button switch
is configured for active-low operation and is connected to a key-wakeup input on the target
MCU. No bias is applied to these push-button inputs and use of target MCU internal pull-ups is
required for proper operation. Figure 12 below shows the USER jumper settings.
Figure 12: JP1 Option Header
G U I D E
NOTE: User peripheral input/output is enabled by default.
LED1
LED2
LED3
LED4
SW1
SW2
SW3
SW4
POT









JP1









Signal
PAD4/KWAD4/AN4
PAD5/KWAD5/AN5
PAD6/KWAD6/AN6
PAD7/KWAD7/AN7
PAD0/KWAD0/AN0
PT4/IOC4
PT5/IOC5
PT6/IOC6
PT7/IOC7
15
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
ON
J U N E
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
OFF
2 ,
2 0 1 0