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HCS12 Datasheet(PDF) 210 Page - Freescale Semiconductor, Inc

Part # HCS12
Description  HCS12 Microcontrollers
PDF  452 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

HCS12 Datasheet(HTML) 210 Page - Freescale Semiconductor, Inc

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Instruction Glossary
S12CPUV2 Reference Manual, Rev. 4.0
210
Freescale Semiconductor
Operation:
(PC) + $0004 + Rel
⇒ PC
Description:
Unconditional branch to an address calculated as shown in the expression.
Rel is a relative offset stored as a two’s complement number in the second
and third bytes of machine code corresponding to the long branch
instruction.
Execution time is longer when a conditional branch is taken than when it is
not, because the instruction queue must be refilled before execution
resumes at the new address. Since the LBRA branch condition is always
satisfied, the branch is always taken, and the instruction queue must always
be refilled, so execution time is always the larger value.
See 3.8 Relative Addressing Mode for details of branch execution.
LBRA
Long Branch Always
LBRA
CCR Details:
S
X
HIN
Z
V
C
––––––––
Source Form
Address
Mode
Object Code
Access Detail
HCS12
M68HC12
LBRA rel16
REL
18 20 qq rr
OPPP
OPPP



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