EFM32G890F64 Energy Micro, EFM32G890F64 Datasheet - Page 24

• 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

2.3.3 Exception handlers
2.3.4 Vector table
2011-02-04 - d0002_Rev1.00
Privileged software can disable the exceptions that Table 2.15 (p. 23) shows as having configurable
priority, see:
• Section 4.3.10 (p. 103)
• Section 4.2.3 (p. 90) .
For more information about hard faults, memory management faults, bus faults, and usage faults, see
Section 2.4 (p. 28) .
The processor handles exceptions using:
Interrupt Service Routines
(ISRs)
Fault handlers
System handlers
The vector table contains the reset value of the stack pointer, and the start addresses, also called
exception vectors, for all exception handlers. Figure 2.2 (p. 25) shows the order of the exception
vectors in the vector table. The least-significant bit of each vector must be 1, indicating that the exception
handler is Thumb code. The parameter n denotes the number of interrupts for the device, given by
Table 1.1 (p. 5) .
Interrupts IRQ0 to IRQ(n-1) (n is given by the number of interrupts
for the device, given by Table 1.1 (p. 5) ) are the exceptions handled
by ISRs.
Hard fault, memory management fault, usage fault, bus fault are fault
exceptions handled by the fault handlers.
NMI, PendSV, SVCall SysTick, and the fault exceptions are all
system exceptions that are handled by system handlers.
...the world's most energy friendly microcontrollers
24
www.energymicro.com