Table 3-48. Reference links to related information (continued)
Topic Related module Reference
Power management Power management
Crossbar switch Crossbar switch Crossbar switch
Signal Multiplexing Port control Signal Multiplexing
3.10.1.1 GPIO Instantiation Information
The device includes four pins, PTB0, PTB1, PTD6, and PTD7, with high current drive
capability. These pins can be used to drive LED or power MOSFET directly. The high
drive capability applies to all functions which are multiplexed on these pins (UART,
TPM, SPI...etc)
3.10.1.1.1 Pull Devices and Directions
The pull devices are enabled out of POR only on RESET_B, NMI_b and respective SWD
signals. Other pins can be enabled by writing to PORTx_PCRn[PE] field.
All the pins are hard wired to be pullup except for SWD_CLK. The state will be reflected
in the PORTx_PCRn[PS] field.
3.10.1.2 Port Control and Interrupt Summary
The following table provides more information regarding the Port Control and Interrupt
configurations .
Table 3-49. Ports Summary
Feature Port A Port B Port C Port D Port E
Pull Select control No No No No No
Pull Select at reset PTA0=Pull down,
Others=Pull up
Pull up Pull up Pull up Pull up
Pull Enable control Yes Yes Yes Yes Yes
Pull Enable at reset PTA0/PTA3/PTA4/
RESET_b=Enabled
; Others=Disabled
Disabled Disabled Disabled Disabled
Slew Rate Enable
control
No No No No No
Table continues on the next page...
Human-machine interfaces (HMI)
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
100 Freescale Semiconductor, Inc.
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