EFM32G200F64 Energy Micro, EFM32G200F64 Datasheet - Page 28

• 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

2.4 Fault handling
2.4.1 Fault types
2011-02-04 - d0002_Rev1.00
this value provide information on the return stack and processor mode. Table 2.16 (p. 28) shows the
EXC_RETURN[3:0] values with a description of the exception return behavior.
The processor sets EXC_RETURN bits[31:4] to 0xFFFFFFF. When this value is loaded into the PC
it indicates to the processor that the exception is complete, and the processor initiates the exception
return sequence.
Table 2.16. Exception return behavior
Faults are a subset of the exceptions, see Section 2.3 (p. 22) . The following generate a fault:
• a bus error on:
• an internally-detected error such as an undefined instruction or an attempt to change state with a BX
• attempting to execute an instruction from a memory region marked as Non-Executable (XN)
• an MPU fault because of a privilege violation or an attempt to access an unmanaged region.
Table 2.17 (p. 28) shows the types of fault, the handler used for the fault, the corresponding fault
status register, and the register bit that indicates that the fault has occurred. See Section 4.3.11 (p.
105) for more information about the fault status registers.
Table 2.17. Faults
EXC_RETURN[3:0]
bXXX0
b0001
b0011
b01X1
b1001
b1101
b1X11
Fault
Bus error on a vector read
Fault escalated to a hard fault
MPU mismatch:
• an instruction fetch or vector table load
• a data access
instruction
on instruction access
on data access
Description
Reserved.
Return to Handler mode.
Exception return gets state from MSP.
Execution uses MSP after return.
Reserved.
Reserved.
Return to Thread mode.
Exception return gets state from MSP.
Execution uses MSP after return.
Return to Thread mode.
Exception return gets state from PSP.
Execution uses PSP after return.
Reserved.
Handler
Hard fault
Memory
management
fault
...the world's most energy friendly microcontrollers
28
Bit name
VECTTBL
FORCED
-
IACCVIOL
DACCVIOL
1
Fault status register
Section 4.3.12 (p. 109)
-
Section 4.3.11.1 (p. 105)
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