Chapter 1 Device Overview MC9S12XE-Family
MC9S12XE-Family Reference Manual Rev. 1.19
Freescale Semiconductor
65
interrupt is level sensitive and active low. As XIRQ is level sensitive, while this pin is low the MCU will
not enter STOP mode.
1.2.3.20
PF7 / TXD3 — Port F I/O Pin 7
PF7 is a general-purpose input or output pin. It can be configured as the transmit pin TXD of serial
communication interface 3 (SCI3).
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).
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
S12XE
products
in
208
MAPBGA
packages