EFM32G200F16 Energy Micro, EFM32G200F16 Datasheet - Page 248

• 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

19.3.1.6.2 X4 Decoding Mode
19.3.1.6.3 TIMER Rotational Position
19.3.2 Compare/Capture Channels
2010-09-06 - d0001_Rev1.00
Table 19.1. TIMER Counter Response in X2 Decoding Mode
Figure 19.8. TIMER X2 Decoding Mode
In X4 Decoding mode, the counter increments or decrements on every edge of Channel A and Channel
B, see Figure 19.9 (p. 248) and Table 19.2 (p. 248) .
Table 19.2. TIMER Counter Response in X4 Decoding Mode
Figure 19.9. TIMER X4 Decoding Mode
To calculate a position Equation 19.1 (p. 248) can be used.
TIMER Rotational Position Equation
where X = Encoding type and N = Number of pulses per revolution.
The Timer contains 3 Compare/Capture channels, which can be configured in the following modes:
1. Input Capture
0
1
Channel A = 0
Channel A = 1
Channel B = 0
Channel B = 1
Opposite Channel
Channel A
Channel B
Channel A
Channel B
Channel B
CNT
CNT
2
3
3
Increment
Decrement
Increment
Decrement
4
4
5
Rising
6
5
7
pos° = (CNT/X x N) x 360°
6
Channel A
8
Rising
9
7
Decrement
Increment
10 11
8
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Falling
248
8
11
Channel A
7
10
Decrement
Increment
Decrement
Increment
6
9
8
Rising
5
7
4
6
Channel B
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Falling
5
3
Increment
Decrement
4
3
2
Falling
2
(19.1)