mc9s12q128 Freescale Semiconductor, Inc, mc9s12q128 Datasheet - Page 92

• Manufacturer Part Number: mc9s12q128
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 2 Port Integration Module (PIM9C32) Block Description
2.3.2.4
2.3.2.4.1
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.
2.3.2.4.2
Read: Anytime.
Write: Never, writes to this register have no effect.
This register always reads back the status of the associated pins. This can be also used to detect overload
or short circuit conditions on output pins.
92
Module Base + 0x0018
Module Base + 0x0019
Reset
Reset
PWM
W
W
R
R
PTIP7
PTP7
Port P Registers
—
—
0
7
7
Port P I/O Register (PTP)
Port P Input Register (PTIP)
= Unimplemented or Reserved
PTIP6
PTP6
—
—
0
6
6
Figure 2-25. Port P Input Register (PTIP)
Figure 2-24. Port P I/O Register (PTP)
PTIP5
PTP5
—
—
0
5
5
MC9S12Q128
PTIP4
PTP4
Rev 1.09
—
—
0
4
4
PWM3
PTIP3
PTP3
—
0
3
3
PWM2
PTIP2
PTP2
—
0
2
2
Freescale Semiconductor
PWM1
PTIP1
PTP1
—
0
1
1
PWM0
PTIP0
PTP0
—
0
0
0