MC3S12RG128 Datasheet, PDF (70/546 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 1 Device Overview (MC3S12RG128V1)
1.6.2 Effects of Reset
When a reset occurs, MCU registers and control bits are changed to known start-up states. Refer to the
respective module Block User Guides for register reset states.
1.6.2.1 I/O pins
Refer to the HCS12 Multiplexed External Bus Interface (MEBI) Block Guide for mode dependent pin
configuration of port A, B, E and K out of reset.
Refer to the PIM Block User Guide for reset configurations of all peripheral module ports.
NOTE
For devices assembled in 80-pin QFP packages all non-bonded out pins
should be configured as outputs after reset in order to avoid current drawn
from floating inputs. Refer to Table 1-4 for affected pins.
1.6.2.2 Memory
Refer to Figure 1-2 for locations of the memories depending on the operating mode after reset.
The content of the RAM array is not automatically initialized out of reset.
MC3S12RG128 Data Sheet, Rev. 1.05
70
Freescale Semiconductor