Chapter 2 Port Integration Module (S12XEP100PIMV1)
MC9S12XE-Family Reference Manual , Rev. 1.19
174
Freescale Semiconductor
Table 2-96. PTF Register Field Descriptions
Field
Description
7
PTF
Port F general purpose input/output data
—Data Register
Port F pin 7 is associated with the TXD signal of the SCI3 module.
When not used with the alternative function, this pin can be used as general purpose I/O.
If the associated data direction bit of this pin is set to 1, a read returns the value of the port register, otherwise the
buffered pin input state is read.
6
PTF
Port F general purpose input/output data
—Data Register
Port F pin 6 is associated with the RXD signal of the SCI3 module .
When not used with the alternative function, this pin can be used as general purpose I/O.
If the associated data direction bit of this pin is set to 1, a read returns the value of the port register, otherwise the
buffered pin input state is read.
5
PTF
Port F general purpose input/output data
—Data Register
Port F pin 5 is associated with the TXD signal of the SCI6 module.
When not used with the alternative function, this pin can be used as general purpose I/O.
If the associated data direction bit of this pin is set to 1, a read returns the value of the port register, otherwise the
buffered pin input state is read.
4
PTF
Port F general purpose input/output data
—Data Register
Port F pin 4 is associated with the RXD signal of the SCI6 module.
When not used with the alternative function, this pin can be used as general purpose I/O.
If the associated data direction bit of this pin is set to 1, a read returns the value of the port register, otherwise the
buffered pin input state is read.
3
PTF
Port F general purpose input/output data
—Data Register
Port F pin 3 is associated with the TXD signal of the SC5 module.
When not used with the alternative function, this pin can be used as general purpose I/O.
If the associated data direction bit of this pin is set to 1, a read returns the value of the port register, otherwise the
buffered pin input state is read.
2
PTF
Port F general purpose input/output data
—Data Register
Port F pin 2 is associated with the RXD signal of the SCI5 module .
When not used with the alternative function, this pin can be used as general purpose I/O.
If the associated data direction bit of this pin is set to 1, a read returns the value of the port register, otherwise the
buffered pin input state is read.
1
PTF
Port F general purpose input/output data
—Data Register
Port F pin 3 is associated with the TXD signal of the SCI4 module.
When not used with the alternative function, this pin can be used as general purpose I/O.
If the associated data direction bit of this pin is set to 1, a read returns the value of the port register, otherwise the
buffered pin input state is read.
0
PTF
Port F general purpose input/output data
—Data Register
Port F pin 2 is associated with the RXD signal of the SCI4 module.
When not used with the alternative function, this pin can be used as general purpose I/O.
If the associated data direction bit of this pin is set to 1, a read returns the value of the port register, otherwise the
buffered pin input state is read.
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