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Port Integration Module (S12XSPIMV1)
S12XS Family Reference Manual, Rev. 1.10
Freescale Semiconductor
91
2.3.26
Port S Data Register (PTS)
Address 0x0248
Access: User read/write1
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.