EFM32G230F64 Energy Micro, EFM32G230F64 Datasheet - Page 175
EFM32G230F64
Manufacturer Part Number
EFM32G230F64
Description
MCU 32BIT 64KB FLASH 64-QFN
Manufacturer
Energy Micro
Series
Geckor
Datasheets
1.EFM32-G230F128-SK.pdf
(65 pages)
2.EFM32-G230F128-SK.pdf
(10 pages)
3.EFM32G200F16.pdf
(463 pages)
4.EFM32G200F16.pdf
(136 pages)
Specifications of EFM32G230F64
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
56
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.8 V
Data Converters
A/D 8x12b, D/A 2x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-VFQFN, Exposed Pad
Processor Series
EFM32G230
Core
ARM Cortex-M3
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
I2C, UART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
56
Number Of Timers
3
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
- EFM32-G230F128-SK PDF datasheet
- EFM32-G230F128-SK PDF datasheet #2
- EFM32G200F16 PDF datasheet #3
- EFM32G200F16 PDF datasheet #4
- Current page: 175 of 463
- Download datasheet (8Mb)
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
)
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
www.energymicro.com
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