Freescale Semiconductor ColdFire MCF52210 - Manual (Page 30)

Overview
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
1-14 Freescale Semiconductor
1.2.22 GPIO
Nearly all pins on the MCF52211 have general purpose I/O capability and are grouped into 8-bit ports.
Some ports do not use all eight bits. Each port has registers that configure, monitor, and control the port
pins.