EFM32G890F64 Energy Micro, EFM32G890F64 Datasheet - Page 123

• Manufacturer Part Number: EFM32G890F64
• Description: MCU 32BIT 64KB FLASH 112-BGA
• Manufacturer: Energy Micro
• Series: Geckor

Specifications of EFM32G890F64

• 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, LCD, POR, PWM, WDT
• Number Of I /o: 90
• 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 8x12b, D/A 2x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LFBGA
• Processor Series: EFM32G890
• 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: 90
• Number Of Timers: 3
• 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

12.5.3 WDOG_SYNCBUSY - Synchronization Busy Register
31:1
0
31:2
1
0
Bit
Offset
0x008
Reset
Access
Name
Bit
2010-09-06 - d0001_Rev1.00
Reserved
CLEAR
Clear watchdog timer. The bit must be written 4 watchdog cycles before the timeout.
Reserved
CMD
Set when the value written to WDOG_CMD is being synchronized.
CTRL
Set when the value written to WDOG_CTRL is being synchronized.
Name
Name
Value
0
1
Mode
UNCHANGED
CLEARED
0
0
0
Reset
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)
W1
R
R
Access
Access
Description
Watchdog timer is unchanged.
Watchdog timer is cleared to 0.
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123
Bit Position
Watchdog Timer Clear
WDOG_CMD Register Busy
WDOG_CTRL Register Busy
Description
Description
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