EFM32G200F64 Energy Micro, EFM32G200F64 Datasheet - Page 218

• Manufacturer Part Number: EFM32G200F64
• Description: MCU 32BIT 64KB FLASH 32-QFN
• Manufacturer: Energy Micro
• Series: Geckor

Specifications of EFM32G200F64

• 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: 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 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: 16 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

18.3 Functional Description
18.3.1 Frame Format
2010-09-06 - d0001_Rev1.00
• Programmable baud rate, generated as a fractional division of the LFBCLK
• Can use a high frequency clock source for even higher baud rates
• Configurable number of data bits: 8 or 9 (plus parity bit, if enabled)
• Configurable parity: off, even or odd
• Configurable number of stop bits, 1 or 2
• Capable of sleep-mode wakeup on received frame
• Supports transmission and reception in EM0, EM1 and EM2 with
• IrDA modulator (pulse generator, pulse extender)
• Multi-processor mode
• Loopback mode
An overview of the LEUART module is shown in Figure 18.1 (p. 218) .
Figure 18.1. LEUART Overview
The frame format used by the LEUART consists of a set of data bits in addition to bits for synchronization
and optionally a parity bit for error checking. A frame starts with one start-bit (S), where the line is driven
• Supports baud rates from 300 baud/s to 9600 baud/s
• HW parity bit generation and check
• Either wake-up on any received byte or
• Wake up only on specified start and signal frames
• Full DMA support
• Specified start-byte can start reception automatically
• Half duplex communication
• Communication debugging
LEUn_RX
LEUn_TX
Pulse
gen
TX Shift Register
TX Baud rate
TX Buffer
generator
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218
(STARTFRAME)
Peripheral Bus
UART Control
(SIGFRAME)
Signal fram e
RX Wakeup
Start fram e
and status
SYNC
=
=
extend
Pulse
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RX Shift Register
RX Baud rate
RX Buffer
generator
Start fram e interrupt
Signal fram e interrupt
! RXBLOCK