EFM32G890F64 Energy Micro, EFM32G890F64 Datasheet - Page 75

• 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

3.9.1.3 Restrictions
3.9.1.4 Condition flags
3.9.1.5 Examples
3.9.2 CBZ and CBNZ
3.9.2.1 Syntax
2011-02-04 - d0002_Rev1.00
Note
The restrictions are:
• do not use PC in the BLX instruction
• for BX and BLX, bit[0] of Rm must be 1 for correct execution but a branch occurs to the target address
• when any of these instructions is inside an IT block, it must be the last instruction of the IT block.
Note
These instructions do not change the flags.
Compare and Branch on Zero, Compare and Branch on Non#Zero.
CBZ Rn, label
CBNZ Rn, label
where:
Rn
label is the branch destination.
Instruction
Bcond label (inside IT block)
BL{cond} label
BX{cond} Rm
BLX{cond} Rm
created by changing bit[0] to 0
B
BLE
B.W
BEQ
BEQ.W
BL
BX
BXNE
BLX
is the register holding the operand.
You might have to use the .W suffix to get the maximum branch range. See
Section 3.3.8 (p. 45) .
Bcond is the only conditional instruction that is not required to be inside an IT block.
However, it has a longer branch range when it is inside an IT block.
loopA
ng
target ; Branch to target within 16MB range
target ; Conditionally branch to target
target ; Conditionally branch to target within 1MB
funC
LR
R0
R0
; Branch to loopA
; Conditionally branch to label ng
; Branch with link (Call) to function funC, return address
; stored in LR
; Return from function call
; Conditionally branch to address stored in R0
; Branch with link and exchange (Call) to a address stored
; in R0
Branch range
#16 MB to +16 MB
#16 MB to +16 MB
Any value in register
Any value in register
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