mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 68

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

1
Port Integration Module (S12VRPIMV2)
2.3.18
68
Address 0x0249
Read: Anytime
Write:Never
Field
Field
PTIS
PTS
PTS
Reset
5-0
1
0
W
R
PorT data register port S — General-purpose input/output data, SCI1, routed SCI0 or LPDR[LPDR1]
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
synchronized pin input state is read.
PorT data register port S — General-purpose input/output data, SCI1, routed SCI0
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
synchronized pin input state is read.
PorT Input data register port S —
A read always returns the synchronized input state of the associated pin. It can be used to detect overload or short
circuit conditions on output pins.
• The SCI1 function takes precedence over the routed SCI0 or LPDR[LPDR1] function and the general-purpose I/O
• The routed SCI0 or LPDR[LPDR1] function takes precedence over the general-purpose I/O function if enabled.
• The SCI1 function takes precedence over the routed SCI0 function and the general-purpose I/O function if
• The routed SCI0 function takes precedence over the general-purpose I/O function if enabled.
Port S Input Register (PTIS)
function if enabled.
enabled.
0
0
7
Table 2-17. PTS Register Field Descriptions (continued)
0
0
6
Table 2-18. PTIS Register Field Descriptions
MC9S12VR Family Reference Manual,
Figure 2-16. Port S Input Register (PTIS)
Preliminary - Subject to Change Without Notice
PTIS5
5
0
PTIS4
0
4
Description
Description
PTIS3
0
3
Rev. 2.2
PTIS2
0
2
Freescale Semiconductor
PTIS1
Access: User read only
0
1
PTIS0
0
0
1