EFM32G200F16 Energy Micro, EFM32G200F16 Datasheet - Page 125

• 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

13.3.1 Channel Functions
13.3.2 Producers
2010-09-06 - d0001_Rev1.00
Different functions can be applied to a reflex signal within the PRS. Each channel includes an edge
detector to enable generation of pulse signals from level signals. It is also possible to generate output
Reflex signals by configuring the SWPULSE and SWLEVEL bits. SWLEVEL is a programmable level
for each channel and holds the value it is programmed to. The SWPULSE will give out a one-cycle
high pulse if it is written to 1, otherwise a 0 is asserted. The SWLEVEL and SWPULSE signals are
then XOR'ed with the selected input from the producers to form the output signal sent to the consumers
listening to the channel.
Figure 13.1. PRS Overview
Each PRS channel can choose between signals from several producers, which is configured in
SOURCESEL in PRS_CHx_CTRL. Each of these producers outputs one or more signals which can
be selected by setting the SIGSEL field in PRS_CHx_CTRL. Setting the SOURCESEL bits to 0 (Off)
leads to a constant 0 output from the input mux. An overview of the available producers is given in
Table 13.1 (p. 125) .
Table 13.1. Reflex Producers
Module
ACMP
ADC
DAC
GPIO
Signals from
peripherals
producer
Reflex Output
Comparator Output
Single Conversion Done
Scan Conversion Done
Channel 0 Conversion Done
Channel 0 Conversion Done
Pin 0 Input
Pin 1 Input
Pin 2 Input
Pin 3 Input
Pin 4 Input
Pin 5 Input
Pin 6 Input
SOURCESEL[ 5:0]
SWPULSE[ n]
SWLEVEL[ n]
SIGSEL[ 2:0]
EDSEL[ 1:0]
...the world's most energy friendly microcontrollers
125
Reg
peripherals
Signals to
consum er
APB bus
Output Format
Level
Pulse
Pulse
Pulse
Pulse
Level
Level
Level
Level
Level
Level
Level
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