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Chapter 1 Device Overview MC9S12XE-Family
MC9S12XE-Family Reference Manual Rev. 1.07
Freescale Semiconductor
55
1.2.3.21
PF6 / RXD3 — Port F I/O Pin 6
PF6 is a general-purpose input or output pin. It can be configured as the transmit pin RXD of serial
communication interface 3 (SCI3).
1.2.3.22
PF5 / SCL0 — Port F I/O Pin 5
PF5 is a general-purpose input or output pin. It can be configured as the serial clock pin SCL of the IIC0
module.
1.2.3.23
PF4 / SDA0 — Port F I/O Pin 4
PF4 is a general-purpose input or output pin. It can be configured as the serial data pin SDA of the IIC0
module.
1.2.3.24
PF[3:0] / CS[3:0] — Port F I/O Pins 3 to 0
PF[3:0] are a general-purpose input or output pins. They can be configured as chip select outputs [3:0].
1.2.3.25
PH7 / KWH7 / SS2 / TXD5 — Port H I/O Pin 7
PH7 is a general-purpose input or output pin. It can be configured as a keypad wakeup input. It can be
configured as slave select pin SS of the serial peripheral interface 2 (SPI2). It can be configured as the
transmit pin TXD of serial communication interface 5 (SCI5).
1.2.3.26
PH6 / KWH6 / SCK2 / RXD5 — Port H I/O Pin 6
PH6 is a general-purpose input or output pin. It can be configured as a keypad wakeup input. It can be
configured as serial clock pin SCK of the serial peripheral interface 2 (SPI2). It can be configured as the
receive pin (RXD) of serial communication interface 5 (SCI5).
1.2.3.27
PH5 / KWH5 / MOSI2 / TXD4 — Port H I/O Pin 5
PH5 is a general-purpose input or output pin. It can be configured as a keypad wakeup input. It can be
configured as master output (during master mode) or slave input pin (during slave mode) MOSI of the
serial peripheral interface 2 (SPI2). It can be configured as the transmit pin TXD of serial communication
interface 4 (SCI4).
1.2.3.28
PH4 / KWH4 / MISO2 / RXD4 — Port H I/O Pin 4
PH4 is a general-purpose input or output pin. It can be configured as a keypad wakeup input. It can be
configured as master input (during master mode) or slave output (during slave mode) pin MISO of the
serial peripheral interface 2 (SPI2). It can be configured as the receive pin RXD of serial communication
interface 4 (SCI4).