MC3S12RG128 Datasheet, PDF (73/546 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 2 Port Integration Module (PIM3RG128V1) Block Description
2.2 External Signal Description
This section lists and describes the signals that do connect off-chip.
2.2.1 Signal Properties
Table 2-1shows all the pins and their functions that are controlled by the PIM3RG128. If there is more than
one function associated with a pin, the priority is indicated by the position in the table from top (highest
priority) to down (lowest priority).
Port Pin Name
Port T PT[7:0]
Port S
PS7
PS6
PS5
PS4
PS3
PS2
PS1
PS0
Table 2-1. Pin Functions and Priorities (Sheet 1 of 4)
Pin Function
and Priority
IOC[7:0]
GPIO
SS0
GPIO
SCK0
GPIO
MOSI0
GPIO
MISO0
GPIO
TXD1
GPIO
RXD1
GPIO
TXD0
GPIO
RXD0
GPIO
Description
Pin Function
after Reset
Enhanced Capture Timer Channels 7 to 0
General-purpose I/O
Serial Peripheral Interface 0 slave select output in master mode,
input in slave mode or master mode.
General-purpose I/O
Serial Peripheral Interface 0 serial clock pin
General-purpose I/O
Serial Peripheral Interface 0 master out/slave in pin
General-purpose I/O
Serial Peripheral Interface 0 master in/slave out pin
General-purpose I/O
Serial Communication Interface 1 transmit pin
General-purpose I/O
Serial Communication Interface 1 receive pin
General-purpose I/O
Serial Communication Interface 0 transmit pin
General-purpose I/O
Serial Communication Interface 0 receive pin
General-purpose I/O
GPIO
GPIO
MC3S12RG128 Data Sheet, Rev. 1.05
Freescale Semiconductor
73