EFM32G890F64 Energy Micro, EFM32G890F64 Datasheet - Page 23

• 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

2011-02-04 - d0002_Rev1.00
Usage fault
SVCall
PendSV
SysTick
Interrupt (IRQ)
Table 2.15. Properties of the different exception types
1
interrupts. The IPSR returns the Exception number, see Section 2.1.3.5.2 (p. 10) .
2
3
4
5
For an asynchronous exception, other than reset, the processor can execute another instruction between
when the exception is triggered and when the processor enters the exception handler.
To simplify the software layer, the CMSIS only uses IRQ numbers and therefore uses negative values for exceptions other than
See Section 2.3.4 (p. 24) for more information.
See Section 4.3.9 (p. 102) .
See Section 4.2.7 (p. 92) .
Increasing in steps of 4.
Exception
number
1
2
3
4
5
6
7-10
11
12-13
14
15
16 and
above
1
IRQ
number
-
-14
-13
-12
-11
-10
-
-5
-
-2
-1
0 and
above
1
Exception type
Reset
NMI
Hard fault
Memory
management fault
Bus fault
Usage fault
-
SVCall
-
PendSV
SysTick
Interrupt (IRQ)
A usage fault is an exception that occurs because of a fault related to
instruction execution. This includes:
• an undefined instruction
• an illegal unaligned access
• invalid state on instruction execution
• an error on exception return.
The following can cause a usage fault when the core is configured to
report them:
• an unaligned address on word and halfword memory access
• division by zero.
A supervisor call (SVC) is an exception that is triggered by the
SVC instruction. In an OS environment, applications can use SVC
instructions to access OS kernel functions and device drivers.
PendSV is an interrupt-driven request for system-level service. In an
OS environment, use PendSV for context switching when no other
exception is active.
A SysTick exception is an exception the system timer generates when
it reaches zero. Software can also generate a SysTick exception. In an
OS environment, the processor can use this exception as system tick.
A interrupt, or IRQ, is an exception signalled by a peripheral, or
generated by a software request. All interrupts are asynchronous
to instruction execution. In the system, peripherals use interrupts to
communicate with the processor.
Priority
-3, the highest
-2
-1
Configurable
Configurable
Configurable
-
Configurable
-
Configurable
Configurable
Configurable
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3
3
3
3
3
3
4
23
Vector address or
offset
0x00000004
0x00000008
0x0000000C
0x00000010
0x00000014
0x00000018
Reserved
0x0000002C
Reserved
0x00000038
0x0000003C
0x00000040 and
above
2
5
Activation
Asynchronous
Software only
-
Synchronous
Synchronous when precise,
asynchronous when imprecise
Synchronous
-
Synchronous
-
Asynchronous
Asynchronous
Asynchronous
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