mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 62
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mc9s12vr48
Manufacturer Part Number
mc9s12vr48
Description
S12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12VR48.pdf
(592 pages)
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1
Port Integration Module (S12VRPIMV2)
2.3.11
62
Address 0x0241
Read: Anytime
Write:Never
Field
Field
PTIT
PTT
PTT
Reset
3-0
1
0
W
R
PorT data register port T — General-purpose input/output data, TIM input/output, routed SCI0, 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 T — General-purpose input/output data, TIM input/output, 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 T —
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 routed SCI0 or LPDR[LPDR1] takes precedence over the TIM output function and the general-purpose I/O
• The TIM function takes precedence over the general-purpose I/O function if enabled.
• The routed SCI0 takes precedence over the TIM output function and the general-purpose I/O function if enabled.
• The TIM function takes precedence over the general-purpose I/O function if enabled.
Port T Input Register (PTIT)
function if enabled.
0
0
7
Table 2-10. PTT Register Field Descriptions (continued)
0
0
6
Table 2-11. PTIT Register Field Descriptions
MC9S12VR Family Reference Manual,
Preliminary - Subject to Change Without Notice
Figure 2-9. Port T Input Register (PTIT)
5
0
0
0
0
4
Description
Description
PTIT3
0
3
Rev. 2.2
PTIT2
0
2
Freescale Semiconductor
PTIT1
Access: User read only
0
1
PTIT0
0
0
1
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