EFM32G200F16 Energy Micro, EFM32G200F16 Datasheet - Page 389

• Manufacturer Part Number: EFM32G200F16
• Description: MCU 32BIT 16KB FLASH 32-QFN
• Manufacturer: Energy Micro
• Series: Geckor

Specifications of EFM32G200F16

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.8 V
• Data Converters: A/D 4x12b, D/A 1x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad
• Processor Series: EFM32G200
• Core: ARM Cortex-M3
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 2
• Operating Supply Voltage: 1.8 V to 3.8 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

28 GPIO - General Purpose Input/Output
28.1 Introduction
28.2 Features
2010-09-06 - d0001_Rev1.00
In the EFM32G devices the General Purpose Input/Output (GPIO) pins are organized into ports with up
to 16 pins each. These pins can individually be configured as either an output or input. More advanced
configurations like open-drain, filtering and drive strength can also be configured individually for the pins.
The GPIO pins can also be overridden by peripheral pin connections, like Timer PWM outputs or USART
communication, which can be routed to several locations on the device. The GPIO supports up to 16
asynchronous external pin interrupts, which enables interrupts from any pin on the device. Also, the
input value of a pin can be routed through the Peripheral Reflex System to other peripherals.
• Individual configuration for each pin
0 1 2 3
• Tristate (reset state)
• Push-pull
• Open-drain
• Pull-up resistor
• Pull-down resistor
• Drive strength
• 0.5 mA
• 2 mA
• 6 mA
• 20 mA
4
EFM32 MCU
Peripherals
Cortex-M3
GPIO
ARM
...the world's most energy friendly microcontrollers
389
What?
The GPIO (General Purpose Input/Output)
is used for pin configuration and direct pin
manipulation and sensing as well as routing
for peripheral pin connections.
Why?
Easy to use and highly configurable input/
output pins are important to fit many
communication protocols as well as
minimizing software control overhead.
Flexible routing of peripheral functions helps
to ease PCB layout.
How?
Each pin on the device can be individually
configured as either an input or an output with
several different drive modes. Also, individual
bit manipulation registers minimizes control
overhead. Peripheral connections to pins
can be routed to up to 4 different locations,
thus solving congestion issues that may
arise with multiple functions on the same pin.
Fully asynchronous interrupts can also be
generated from any pin.
Quick Facts
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