EFM32G200F16 Energy Micro, EFM32G200F16 Datasheet - Page 175

• 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

16 USART - Universal Synchronous Asynchronous
Receiver/Transmitter
16.1 Introduction
16.2 Features
2010-09-06 - d0001_Rev1.00
The Universal Synchronous Asynchronous serial Receiver and Transmitter (USART) is a very flexible
serial I/O module. It supports full duplex asynchronous UART communication as well as RS-485, SPI,
MicroWire and 3-wire. It can also interface with ISO7816 SmartCards, and IrDA devices.
• Asynchronous and synchronous (SPI) communication
• Full duplex and half duplex
• Separate TX/RX enable
• Separate receive / transmit 2-level buffers, with additional separate shift registers
• Programmable baud rate, generated as an fractional division from the peripheral clock
• Max bit-rate
• Asynchronous mode supports
• Synchronous mode supports
• Data can be transmitted LSB first or MSB first
0 1 2 3
(HFPERCLK
• SPI master mode, peripheral clock rate/2
• SPI slave mode, peripheral clock rate/8
• UART mode, peripheral clock rate/16, 8, 6, or 4
• Majority vote baud-reception
• False start-bit detection
• Break generation/detection
• Multi-processor mode
• All 4 SPI clock polarity/phase configurations
• Master and slave mode
4
EFM32
DMA
controller
USARTn
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RAM
USART
MOSI
MISO
TX/
RX/
CLK
CS
IrDA
Sm artCards
USART
...the world's most energy friendly microcontrollers
SPI
175
What?
The USART handles high-speed UART, SPI-
bus, SmartCards, and IrDA communication.
Why?
Serial communication is frequently used in
embedded systems and the USART allows
efficient communication with a wide range of
external devices.
How?
The USART has a wide selection of operating
modes, frame formats and baud rates. The
multi-processor mode allows the USART
to remain idle when not addressed. Triple
buffering and DMA support makes high data-
rates possible with minimal CPU intervention
and it is possible to transmit and receive large
frames while the MCU remains in EM1.
Quick Facts
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