mc68hc11d0 Freescale Semiconductor, Inc, mc68hc11d0 Datasheet - Page 23

• Manufacturer Part Number: mc68hc11d0
• Description: Mc68hc11d0 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

TECHNICAL DATA
INDEXED, X
INDEXED, Y
INDEXED, Y
INDEXED, X
INDEXED, Y
EXTENDED
DIRECT
JSR, JUMP TO SUBROUTINE
JMP, JUMP
X + ff
X + ff
RTN
hh ll
RTN
RTN
RTN
PC
PC
PC
PC
PC
PC
PC
NEXT MAIN INSTR.
NEXT MAIN INSTR.
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
$BD = PRE
$9D = JSR
$AD = JSR
$AD = JSR
$6E = JMP
$18 = PRE
$7E = JMP
$18 = PRE
$6E = JMP
hh
dd
hh
ff
ff
ff
ff
ll
ll
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 3-2 Stacking Operations
SP+1
SP+2
SP+3
SP+4
SP+5
SP+6
SP+7
SP+8
SP+9
SP
CENTRAL PROCESSING UNIT
7
Go to: www.freescale.com
STACK
ACCB
ACCA
RTN
RTN
CCR
IX
IY
IX
IY
H
H
L
L
H
L
0
LEGEND:
RTN
RTN
RTN = ADDRESS OF NEXT INSTRUCTION IN MAIN PROGRAM TO
dd = 8-BIT DIRECT ADDRESS ($0000–$00FF) (HIGH BYTE ASSUMED
hh = HIGH-ORDER BYTE OF 16-BIT EXTENDED ADDRESS
H
WAI, WAIT FOR INTERRUPT
SWI, SOFTWARE INTERRUPT
WAI, WAIT FOR INTERRUPT
BSR, BRANCH TO SUBROUTINE
RTS, RETURN FROM
SUBROUTINE
L
ff = 8-BIT POSITIVE OFFSET $00 (0) TO $FF (256) IS ADDED TO INDEX
ll = LOW-ORDER BYTE OF 16-BIT EXTENDED ADDRESS
rr= SIGNED RELATIVE OFFSET $80 (–128) TO $7F (+127) (OFFSET
= MOST SIGNIFICANT BYTE OF RETURN ADDRESS
= LEAST SIGNIFICANT BYTE OF RETURN ADDRESS
= STACK POINTER POSITION AFTER OPERATION IS COMPLETE
BE EXECUTED UPON RETURN FROM SUBROUTINE
TO BE $00)
RELATIVE TO THE ADDRESS FOLLOWING THE MACHINE CODE
OFFSET BYTE)
PC
PC
PC
PC
PC
INTERRUPT ROUTINE
MAIN PROGRAM
MAIN PROGRAM
MAIN PROGRAM
MAIN PROGRAM
$8D = BSR
$3E = WAI
$3F = SWI
$3E = WAI
$39 = RTS
SP+1
SP+2
SP+3
SP+4
SP+5
SP+6
SP+7
SP+8
SP+9
SP–9
SP–8
SP–7
SP–6
SP–5
SP–4
SP–3
SP–2
SP–1
SP–2
SP–1
SP+1
SP+2
SP
SP
SP
SP
7
7
7
7
HC11 STACK OPERATIONS
STACK
STACK
STACK
STACK
ACCB
ACCA
RTN
ACCB
ACCA
RTN
RTN
RTN
RTN
RTN
RTN
RTN
CCR
CCR
IX
IX
IY
IY
IX
IX
IY
IY
H
L
H
L
H
L
H
L
H
H
H
H
L
L
L
L
0
0
0
0
3-3