LM3S3748 Datasheet, PDF (270/753 Pages) List of Unclassifed Manufacturers – Microcontroller

General-Purpose Input/Outputs (GPIOs)
Bit/Field
7:0
Name
AFSEL
Type
R/W
Reset
-
Description
GPIO Alternate Function Select
The AFSEL values are defined as follows:
Value Description
0 Software control of corresponding GPIO line (GPIO mode).
1 Hardware control of corresponding GPIO line (alternate
hardware function).
Note:
The default reset value for the GPIOAFSEL,
GPIOPUR, and GPIODEN registers are 0x0000.0000
for all GPIO pins, with the exception of the four
JTAG/SWD pins (PC[3:0]). These four pins default
to JTAG/SWD functionality. Because of this, the
default reset value of these registers for Port C is
0x0000.000F.
270
April 08, 2008
Preliminary