Datasheet

Port Integration Module (S12XSPIMV1)
S12XS Family Reference Manual, Rev. 1.13
Freescale Semiconductor 91
2.3.26 Port S Data Register (PTS)
Address 0x0248 Access: User read/write
1
1
Read: Anytime, the data source depends on the data direction value
Write: Anytime
76543210
R
PTS7 PTS6 PTS5 PTS4 PTS3 PTS2 PTS1 PTS0
W
Altern.
Function
SS0 SCK0 MOSI0 MISO0 TXD1 RXD1 TXD0 RXD0
Reset 00000000
Figure 2-24. Port S Data Register (PTS)
Table 2-23. PTS Register Field Descriptions
Field Description
7
PTS
Port S general purpose input/output data—Data Register, SPI0
SS input/output
When not used with the alternative function, the associated pin can be used as general purpose I/O. In general
purpose output mode the register bit value is driven to the pin.
If the associated data direction bit is set to 1, a read returns the value of the port register bit, otherwise the buffered
pin input state is read.
• The SPI0 function takes precedence over the general purpose I/O function if enabled.
6
PTS
Port S general purpose input/output data—Data Register, SPI0 SCK input/output
When not used with the alternative function, the associated pin can be used as general purpose I/O. In general
purpose output mode the register bit value is driven to the pin.
If the associated data direction bit is set to 1, a read returns the value of the port register bit, otherwise the buffered
pin input state is read.
• The SPI0 function takes precedence over the general purpose I/O function if enabled.
5
PTS
Port S general purpose input/output data—Data Register, SPI0 MOSI input/output
When not used with the alternative function, the associated pin can be used as general purpose I/O. In general
purpose output mode the register bit value is driven to the pin.
If the associated data direction bit is set to 1, a read returns the value of the port register bit, otherwise the buffered
pin input state is read.
• The SPI0 function takes precedence over the general purpose I/O function if enabled.
4
PTS
Port S general purpose input/output data—Data Register, SPI0 MISO input/output
When not used with the alternative function, the associated pin can be used as general purpose I/O. In general
purpose output mode the register bit value is driven to the pin.
If the associated data direction bit is set to 1, a read returns the value of the port register bit, otherwise the buffered
pin input state is read.
• The SPI0 function takes precedence over the general purpose I/O function if enabled.