MC9S12E64CFUE Datasheet, PDF (162/606 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 3 Port Integration Module (PIM9E128V1)
3.5 Resets
The reset values of all registers are given in the register description in Section 3.3, “Memory Map and
Register Definition”.
All ports start up as general-purpose inputs on reset.
3.5.1 Reset Initialization
All registers including the data registers get set/reset asynchronously. Table 3-37 summarizes the port
properties after reset initialization.
P
Table 3-37. Port Reset State Summary
Port
A
B
E
K
BKGD pin
AD
M[7:4]
M[3,1:0]
P
Q
S
T
U
Data
Direction
Refer to
section Bus
Control and
Input/Output
Input
Input
Input
Input
Input
Input
Input
Input
Pull Mode
Pull Up
Reset States
Red. Drive
Wired-OR
Mode
Interrupt
Refer to section Bus Control and Input/Output
Hi-z
Pull Up
Hi-z
Hi-z
Hi-z
Pull Up
Hi-z
Hi-z
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
N/A
Disabled
Disabled
N/A
N/A
Disabled
N/A
N/A
Disabled
N/A
N/A
N/A
N/A
N/A
N/A
N/A
MC9S12E128 Data Sheet, Rev. 1.07
162
Freescale Semiconductor