LM3S101 Datasheet, PDF (199/445 Pages) List of Unclassifed Manufacturers – Microcontroller

Stellaris^® LM3S101 Microcontroller
7 General-Purpose Input/Outputs (GPIOs)
The GPIO module is composed of three physical GPIO blocks, each corresponding to an individual
GPIO port (Port A, Port B, Port C). The GPIO module supports 2-18 programmable input/output
pins, depending on the peripherals being used.
The GPIO module has the following features:
■ 2-18 GPIOs, depending on configuration
■ 5-V-tolerant in input configuration
■ Fast toggle capable of a change every two clock cycles
■ Programmable control for GPIO interrupts
– Interrupt generation masking
– Edge-triggered on rising, falling, or both
– Level-sensitive on High or Low values
■ Bit masking in both read and write operations through address lines
■ Pins configured as digital inputs are Schmitt-triggered.
■ Programmable control for GPIO pad configuration
– Weak pull-up or pull-down resistors
– 2-mA, 4-mA, and 8-mA pad drive for digital communication
– Slew rate control for the 8-mA drive
– Open drain enables
– Digital input enables
July 14, 2014
199
Texas Instruments-Production Data