Freescale Semiconductor MPC8260 - Manual (Page 1284)

Parallel I/O Ports
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
40-6 Freescale Semiconductor
Figure 40-6. Port Functional Operation
40.4 Port Pins Functions
Each pin can operate as a general purpose I/O pin or as a dedicated input or output pin.
Pin
PDAT x
Default
Input IN1
Default
Input IN2
To DED IN1
To DED IN2
From DED OUT2
PDAT x Read
0
1
0
1
PPAR & PSOR & PDIR
PPAR & PSOR & PDIR
Open
Drain
Control
EN
PODR
0
Latch
From DED OUT1
PSOR
1
0
1
PDAT x Write
To/from internal bus
Register Name 0 1 Description
PPAR x General purpose Dedicated Port pin assignment
PSOR x Dedicated 1 Dedicated 2 Special operation
PDIR x Input Output Direction 1
1 Bidirectional signals must be programmed as inputs (PDIR = 0).
PODR x Regular Open drain
PDAT x 0 1 Data
Read
PDIR
PPAR