EFM32G890F64 Energy Micro, EFM32G890F64 Datasheet - Page 12

• 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

2.1.3.6.3 Base Priority Mask Register
2.1.3.7 CONTROL register
2011-02-04 - d0002_Rev1.00
Table 2.8. FAULTMASK register bit assignments
The processor clears the FAULTMASK bit to 0 on exit from any exception handler except the NMI
handler.
The BASEPRI register defines the minimum priority for exception processing. When BASEPRI is set
to a nonzero value, it prevents the activation of all exceptions with same or lower priority level as the
BASEPRI value. See the register summary in Table 2.2 (p. 7) for its attributes. The bit assignments
are:
Table 2.9. BASEPRI register bit assignments
1
bits[4:0] read as zero and ignore writes. See Section 4.2.7 (p. 92) for more information. Remember that higher priority field
values correspond to lower exception priorities.
The CONTROL register controls the stack used and the privilege level for software execution when the
processor is in Thread mode. See the register summary in Table 2.2 (p. 7) for its attributes. The
bit assignments are:
31
31
31
This field is similar to the priority fields in the interrupt priority registers. The processor implements only bits[7:5 of this field,
Bits
[31:1]
[0]
Bits
[31:8]
[7:0]
Name
-
FAULTMASK
Name
-
BASEPRI
1
Function
Reserved
Priority mask bits:
0x0000 = no effectNonzero = defines the base priority for exception processing.
The processor does not process any exception with a priority value greater than or equal to
BASEPRI.
Function
Reserved
0 = no effect
1 = prevents the activation of all exceptions except for NMI.
Reserved
Reserved
Reserved
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12
Thread m ode privilege level
Active stack pointer
8
7
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FAULTMASK
BASEPRI
2 1 0
1
0
0