mc68hc11d0cfn2 Freescale Semiconductor, Inc, mc68hc11d0cfn2 Datasheet - Page 38

• Manufacturer Part Number: mc68hc11d0cfn2
• Description: M68hc11 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Central Processor Unit (CPU)
Data Sheet
38
JSR, JUMP TO SUBROUTINE
DIRECT
INDXD,X
INDXD,Y
EXTEND
BSR, BRANCH TO SUBROUTINE
RTS, RETURN FROM SUBROUTINE
SWI, SOFTWARE INTERRUPT
RTN
RTN
RTN
RTN
RTN
RTN
RTN
WAI, WAIT FOR INTERRUPT
PC
PC
PC
PC
PC
PC
PC
PC
NEXT MAIN INSTR
NEXT MAIN INSTR
NEXT MAIN INSTR
NEXT MAIN INSTR
NEXT MAIN INSTR
MAIN PROGRAM
MAIN PROGRAM
MAIN PROGRAM
MAIN PROGRAM
MAIN PROGRAM
MAIN PROGRAM
MAIN PROGRAM
SUBROUTINE
$8D = BSR
$9D = JSR
$AD = JSR
$18 = PRE
$AD = JSR
$BD = JSR
$39 = RTS
$3E = WAI
$3F = SWI
dd
hh
rr
ff
ff
ll
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 3-2. Stacking Operations
SP+2
SP+1
SP-9
SP-8
SP-7
SP-6
SP-5
SP-4
SP-3
SP-2
SP-2
SP-2
SP-1
SP-1
SP-1
SP
SP
SP
SP
Go to: www.freescale.com
Central Processor Unit (CPU)
INDEX REGISTER (X
INDEX REGISTER (Y
INDEX REGISTER (X
INDEX REGISTER (Y
CONDITION CODE
ACMLTR B
ACMLTR A
STACK
STACK
STACK
STACK
RTN
RTN
RTN
RTN
RTN
RTN
RTN
RTN
H
H
H
H
L
L
L
L
H
H
L
L
)
)
)
)
RTI, RETURN FROM INTERRUPT
JMP, JUMP
INDXD,X
INDXD,Y
EXTND
LEGEND:
PC
RTN
RTN
RTN
INTERRUPT PROGRAM
dd
hh
rr
H
ff
L
ll
Address of next instruction in main program to be
executed upon return from subroutine
Most significant byte of return address
Least significant byte of return address
Shaded cells show stack pointer position after
operation is complete.
8-bit direct address ($0000–$00FF) (high byte
assumed to be $00).
8-bit positive offset $00 (0) to $FF (256) is added
to index.
High-order byte of 16-bit extended address.
Low-order byte of 16-bit extended address.
Signed-relative offset $80 (–128) to $7F (+127)
(offset relative to the address following the
machine code offset byte).
$3B = RTI
X + ff
X + ff
hh ll
PC
PC
PC
NEXT INSTRUCTION
NEXT INSTRUCTION
NEXT INSTRUCTION
MAIN PROGRAM
MAIN PROGRAM
MAIN PROGRAM
$6E = JMP
$18 = PRE
$6E = JMP
$7E = JMP
hh
ff
ff
ll
SP+1
SP+2
SP+3
SP+4
SP+5
SP+6
SP+7
SP+8
SP+9
SP
MC68HC711D3 — Rev. 2
INDEX REGISTER (X
INDEX REGISTER (X
INDEX REGISTER (Y
INDEX REGISTER (Y
CONDITION CODE
ACMLTR B
ACMLTR A
STACK
RTN
RTN
H
L
MOTOROLA
H
L
H
L
)
)
)
)