EFM32-TG-STK3300 Energy Micro, EFM32-TG-STK3300 Datasheet - Page 75

• Manufacturer Part Number: EFM32-TG-STK3300
• Description: MCU, MPU & DSP Development Tools TG Starter Kit
• Manufacturer: Energy Micro
• Series: EFM®32r
• Type: MCUr

Specifications of EFM32-TG-STK3300

• Processor To Be Evaluated: EFM32
• Processor Series: EMF32 Tiny Gecko
• Data Bus Width: 32 bit
• Interface Type: USB, JTAG, LCD, Touch Interface
• Operating Supply Voltage: 5 V
• Contents: Board, Cable, CD and Documentation
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: EFM32-TGXXX

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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