EFM32G200F16 Energy Micro, EFM32G200F16 Datasheet - Page 121

• 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

12.4 Register Map
12.5 Register Description
12.5.1 WDOG_CTRL - Control Register (Async Reg)
31:14
13:12
11:8
Offset
0x000
0x004
0x008
Offset
0x000
Reset
Access
Name
Bit
2010-09-06 - d0001_Rev1.00
The offset register address is relative to the registers base address.
For more information about Asynchronous Registers please see Section 5.3 (p. 18) .
Reserved
CLKSEL
Selects the WDOG oscillator, ie. the clock on which the watchdog will run.
PERSEL
Select watchdog timeout period.
Name
Value
0
1
2
Value
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Name
WDOG_CTRL
WDOG_CMD
WDOG_SYNCBUSY
Mode
ULFRCO
LFRCO
LFXO
0x0
0xF
Reset
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
RW
RW
Access
Description
Timeout period of 9 watchdog clock cycles.
Timeout period of 17 watchdog clock cycles.
Timeout period of 33 watchdog clock cycles.
Timeout period of 65 watchdog clock cycles.
Timeout period of 129 watchdog clock cycles.
Timeout period of 257 watchdog clock cycles.
Timeout period of 513 watchdog clock cycles.
Timeout period of 1k watchdog clock cycles.
Timeout period of 2k watchdog clock cycles.
Timeout period of 4k watchdog clock cycles.
Timeout period of 8k watchdog clock cycles.
Timeout period of 16k watchdog clock cycles.
Timeout period of 32k watchdog clock cycles.
Timeout period of 64k watchdog clock cycles.
Timeout period of 128k watchdog clock cycles.
Timeout period of 256k watchdog clock cycles.
Description
ULFRCO
LFRCO
LFXO
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121
Bit Position
Type
RW
W1
R
Watchdog Clock Select
Watchdog Timeout Period Select.
Description
Description
Control Register
Command Register
Synchronization Busy Register
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