LM3S8G62 Datasheet, PDF (438/1096 Pages) Texas Instruments – Stellaris® LM3S8G62 Microcontroller

OBSOLETE: TI has discontinued production of this device.
General-Purpose Input/Outputs (GPIOs)
Bit/Field
31:8
7:0
Name
reserved
PUE
Type
RO
R/W
Reset Description
0x0000.00 Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
-
Pad Weak Pull-Up Enable
Value Description
0 The corresponding pin's weak pull-up resistor is disabled.
1 The corresponding pin's weak pull-up resistor is enabled.
Setting a bit in the GPIOPDR register clears the corresponding bit in
the GPIOPUR register. The change is effective on the second clock
cycle after the write if accessing GPIO via the APB memory aperture.
If using AHB access, the change is effective on the next clock cycle.
The reset value for this register is 0x0000.0000 for GPIO ports that are
not listed in Table 9-1 on page 410.
438
July 24, 2012
Texas Instruments-Production Data