EFM32G890F64 Energy Micro, EFM32G890F64 Datasheet - Page 76

• 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

3.9.2.2 Operation
3.9.2.3 Restrictions
3.9.2.4 Condition flags
3.9.2.5 Examples
3.9.3 IT
3.9.3.1 Syntax
2011-02-04 - d0002_Rev1.00
Use the CBZ or CBNZ instructions to avoid changing the condition code flags and to reduce the number
of instructions.
CBZ Rn, label does not change condition flags but is otherwise equivalent to:
CBNZ Rn, label does not change condition flags but is otherwise equivalent to:
The restrictions are:
• Rn must be in the range of R0 to R7
• the branch destination must be within 4 to 130 bytes after the instruction
• these instructions must not be used inside an IT block.
These instructions do not change the flags.
If-Then condition instruction.
IT{x{y{z}}} cond
where:
x
y
z
cond specifies the condition for the first instruction in the IT block.
The condition switch for the second, third and fourth instruction in the IT block can be either:
T Then. Applies the condition cond to the instruction.
E Else. Applies the inverse condition of cond to the instruction.
Note
CMP
BEQ
CMP
BNE
CBZ
CBNZ
specifies the condition switch for the second instruction in the IT block.
specifies the condition switch for the third instruction in the IT block.
specifies the condition switch for the fourth instruction in the IT block.
It is possible to use AL (the always condition) for cond in an IT instruction. If this is done,
all of the instructions in the IT block must be unconditional, and each of x, y, and z must be
T or omitted but not E.
R5, target ; Forward branch if R5 is zero
R0, target ; Forward branch if R0 is not zero
Rn, #0
label
Rn, #0
label
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