Datasheet

Chapter 2 Port Integration Module (PIM9C32) Block Description
Freescale Semiconductor MC9S12C-Family / MC9S12GC-Family 93
Rev 01.24
2.3.2.4 Port P Registers
2.3.2.4.1 Port P I/O Register (PTP)
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 Port P Input Register (PTIP)
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.
Module Base + 0x0018
76543210
R
PTP7 PTP6 PTP5 PTP4 PTP3 PTP2 PTP1 PTP0
W
PWM — — PWM5 PWM4 PWM3 PWM2 PWM1 PWM0
Reset 0 0 0 00000
Figure 2-24. Port P I/O Register (PTP)
Module Base + 0x0019
76543210
R PTIP7 PTIP6 PTIP5 PTIP4 PTIP3 PTIP2 PTIP1 PTIP0
W
Reset — — ——————
= Unimplemented or Reserved
Figure 2-25. Port P Input Register (PTIP)