EFM32G200F64 Energy Micro, EFM32G200F64 Datasheet - Page 103

• 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

11.5.4 CMU_HFRCOCTRL - HFRCO Control Register
11.5.5 CMU_LFRCOCTRL - LFRCO Control Register
31:17
16:12
11
10:8
7:0
31:7
6:0
Offset
0x00C
Reset
Access
Name
Bit
Offset
0x010
Reset
Access
Name
Bit
2010-09-06 - d0001_Rev1.00
Reserved
SUDELAY
Always write this field to 0.
Reserved
BAND
Write this field to set the frequency band in which the HFRCO is to operate. When changing this setting there will be no glitches on
the HFRCO output, hence it is safe to change this setting even while the system is running on the HFRCO. To ensure an accurate
frequency, the HFTUNING value should also be written when changing the frequency band. The calibrated tuning value for the
different bands can be read from the Device Information page.
TUNING
Writing this field adjusts the HFRCO frequency (the higher value, the higher frequency). This field is updated with the production
calibrated value for the 14 MHz band during reset, and the reset value might therefore vary between devices.
Reserved
TUNING
Writing this field adjusts the LFRCO frequency (the higher value, the higher frequency). This field is updated with the production
calibrated value during reset, and the reset value might therefore vary between devices.
Name
Name
Value
0
1
2
3
4
5
Mode
1MHZ
7MHZ
11MHZ
14MHZ
21MHZ
28MHZ
0x00
0x3
0x80
0x40
Reset
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
Reset
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
RW
RW
RW
RW
Access
Access
Description
1 MHz. NOTE: Also set the TUNING value (bits 7:0) when changing band.
7 MHz. NOTE: Also set the TUNING value (bits 7:0) when changing band.
11 MHz. NOTE: Also set the TUNING value (bits 7:0) when changing band.
14 MHz. NOTE: Also set the TUNING value (bits 7:0) when changing band.
21 MHz. NOTE: Also set the TUNING value (bits 7:0) when changing band.
28 MHz. NOTE: Also set the TUNING value (bits 7:0) when changing band.
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103
Bit Position
Bit Position
HFRCO Start-up Delay
HFRCO Band Select
HFRCO Tuning Value
LFRCO Tuning Value
Description
Description
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