LM3S618 Datasheet, PDF (250/572 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 register
is 0x0000.0000 for all GPIO pins, with the exception
of the five JTAG pins (PB7 and PC[3:0]). These five
pins default to JTAG functionality. Because of this,
the default reset value of GPIOAFSEL for GPIO Port
B is 0x0000.0080 while the default reset value for
Port C is 0x0000.000F.
250
July 14, 2014
Texas Instruments-Production Data