EFM32G200F64 Energy Micro, EFM32G200F64 Datasheet - Page 127

• 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

13.3.4 Example
2010-09-06 - d0001_Rev1.00
The example below (illustrated in Figure 13.2 (p. 127) ) shows how to set up ADC0 to start single
conversions every time TIMER0 overflows (one HFPERCLK cycle high pulse), using PRS channel 5:
• Set SOURCESEL in PRS_CH5_CTRL to 0b011100 to select TIMER0 as input to PRS channel 5.
• Set SIGSEL in PRS_CH5_CTRL to 0b001 to select the overflow signal (from TIMER0).
• Configure ADC0 with the desired conversion set-up.
• Set SINGLEPRSEN in ADC0_SINGLECTRL to 1 to enable single conversions to be started by a high
• Set SINGLEPRSSEL in ADC0_SINGLECTRL to 0x5 to select PRS channel 5 as input to start the
• Start TIMER0 with the desired TOP value, an overflow PRS signal is output automatically on overflow.
Note that the ADC results needs to be fetched either by the CPU or DMA.
Figure 13.2. TIMER0 overflow starting ADC0 single conversions through PRS channel 5.
Module
UART
USART
PRS
PRS input signal.
single conversion.
ch0
ch1
ch2
ch3
ch4
ch5
ch6
ch7
TIMER0
Overflow
Reflex Input
CC2 Input
DTI Fault Source 0 (TIMER0 only)
DTI Fault Source 1 (TIMER0 only)
DTI Input (TIMER0 only)
TX/RX Enable
TX/RX Enable
IrDA Encoder Input (USART0 only) Pulse
...the world's most energy friendly microcontrollers
127
Start single conv.
ADC0
Input Format
Pulse/Level
Pulse
Pulse
Pulse/Level
Pulse
Pulse
www.energymicro.com