mc9s12ne64 Freescale Semiconductor, Inc, mc9s12ne64 Datasheet - Page 113

• Manufacturer Part Number: mc9s12ne64
• Description: Hcs12 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

3.3.2.1
3.3.2.1.1
Read:Anytime.
Write:Anytime.
If the data direction bits of the associated I/O pins are set to 1, a read returns the value of the port register,
otherwise the value at the pins is read.
The standard timer module (TIM) can be configured to use the PT[7:4] as timer input capture/output
compare pins. If IOC[7:4]-channel is defined as output, the related port T is assigned to IOC function.
3.3.2.1.2
Read:Anytime.
Write:Never, writes to this register have no effect.
This register always reads back the status of the associated pins. This can also be used to detect overload
or short circuit conditions on output pins.
3.3.2.1.3
Freescale Semiconductor
Module Base + $0
Module Base + $1
Module Base + $2
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write
TIM
Port T Registers
I/O Register (PTT)
Input Register (PTIT)
Data Direction Register (DDRT)
DDRT7
PTIT7
PTT7
IOC7
Bit 7
Bit 7
Bit 7
—
0
0
= Reserved or unimplemented
= Reserved or unimplemented
= Reserved or unimplemented
DDRT6
PTIT6
PTT6
Figure 3-4. Port T Data Direction Register (DDRT)
IOC6
—
6
0
6
6
0
Figure 3-3. Port T Input Register (PTIT)
Figure 3-2. Port T I/O Register (PTT)
MC9S12NE64 Data Sheet, Rev. 1.1
DDRT5
PTIT5
PTT5
IOC5
—
5
0
5
5
0
DDRT4
PTIT4
PTT4
IOC4
—
4
0
4
4
0
—
—
—
3
0
3
0
3
0
—
—
—
2
0
2
0
2
0
Memory Map and Register Descriptions
—
—
—
1
0
1
0
1
0
Bit 0
Bit 0
Bit 0
—
—
—
0
0
0
113