EFM32G200F64 Energy Micro, EFM32G200F64 Datasheet - Page 101
EFM32G200F64
Manufacturer Part Number
EFM32G200F64
Description
MCU 32BIT 64KB FLASH 32-QFN
Manufacturer
Energy Micro
Series
Geckor
Datasheets
1.EFM32G200F16.pdf
(63 pages)
2.EFM32G200F16.pdf
(10 pages)
3.EFM32G200F16.pdf
(463 pages)
4.EFM32G200F16.pdf
(136 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- EFM32G200F16 PDF datasheet
- EFM32G200F16 PDF datasheet #2
- EFM32G200F16 PDF datasheet #3
- EFM32G200F16 PDF datasheet #4
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- Download datasheet (8Mb)
11.5.2 CMU_HFCORECLKDIV - High Frequency Core Clock Division
Register
10:9
8
7
6:5
4
3:2
1:0
Bit
Offset
0x004
Reset
Access
Name
2010-09-06 - d0001_Rev1.00
HFXOTIMEOUT
Configures the start-up delay for HFXO.
Reserved
HFXOGLITCHDETEN
This bit enables the glitch detector which is active as long as the start-up ripple-counter is counting. A detected glitch will reset the
ripple-counter effectively increasing the start-up time. Once the ripple-counter has timed-out, glitches will not be detected.
HFXOBUFCUR
This value has been set during calibration and should not be changed.
Reserved
HFXOBOOST
Used to adjust start-up boost current for HFXO.
HFXOMODE
Set this to configure the external source for the HFXO. The oscillator setting takes effect when 1 is written to HFXOEN in
CMU_OSCENCMD. The oscillator setting is reset to default when 1 is written to HFXODIS in CMU_OSCENCMD.
Name
Value
0
1
2
Value
0
1
2
3
Value
0
1
2
3
Value
0
1
2
Mode
XTAL
BUFEXTCLK
DIGEXTCLK
Mode
8CYCLES
256CYCLES
1KCYCLES
16KCYCLES
Mode
50PCENT
70PCENT
80PCENT
100PCENT
Mode
XTAL
BUFEXTCLK
DIGEXTCLK
0x3
0
0x1
0x3
0x0
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)
RW
RW
RW
RW
RW
Access
Description
32.768 kHz crystal oscillator
An AC coupled buffer is coupled in series with LFXTAL_N pin, suitable for external
sinus wave (32.768 kHz).
Digital external clock on LFXTAL_N pin. Oscillator is effectively bypassed.
Description
Timeout period of 8 cycles
Timeout period of 256 cycles
Timeout period of 1024 cycles
Timeout period of 16384 cycles
Description
50 %
70 %
80 %
100 % (default)
Description
4-32 MHz crystal oscillator
An AC coupled buffer is coupled in series with HFXTAL_N, suitable for external sine
wave (4-32 MHz)
Digital external clock on HFXTAL_N pin. Oscillator is effectively bypassed.
...the world's most energy friendly microcontrollers
101
Bit Position
HFXO Timeout
HFXO Glitch Detector Enable
HFXO Boost Buffer Current
HFXO Start-up Boost Current
HFXO Mode
Description
www.energymicro.com
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