S912XEG128J2MAA Datasheet, PDF (169/1324 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 2 Port Integration Module (S12XEPIMV1)
Field
7
PTL
6
PTL
5
PTL
4
PTL
3
PTL
2
PTL
1
PTL
0
PTL
Table 2-88. PTL Register Field Descriptions
Description
Port L general purpose input/output data—Data Register
Port L pin 7 is associated with the TXD signal of the SCI7 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.
Port L general purpose input/output data—Data Register
Port L pin 6 is associated with the RXD signal of the SCI7 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.
Port L general purpose input/output data—Data Register
Port L 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.
Port L general purpose input/output data—Data Register
Port L 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.
Port L general purpose input/output data—Data Register
Port L 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.
Port L general purpose input/output data—Data Register
Port L 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.
Port L general purpose input/output data—Data Register
Port L 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.
Port L general purpose input/output data—Data Register
Port L 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.
MC9S12XE-Family Reference Manual Rev. 1.25
Freescale Semiconductor
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