mc68hc11e0fnr2 Freescale Semiconductor, Inc, mc68hc11e0fnr2 Datasheet - Page 92
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mc68hc11e0fnr2
Manufacturer Part Number
mc68hc11e0fnr2
Description
Hc11 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC11E0FNR2.pdf
(242 pages)
- Current page: 92 of 242
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Resets and Interrupts
92
SET BIT I IN CCR
FETCH VECTOR
$FFF8, $FFF9
STACK CPU
REGISTERS
Figure 5-5. Processing Flow Out of Reset (Sheet 2 of 2)
SET BIT I IN CCR
FETCH VECTOR
$FFF6, $FFF7
STACK CPU
REGISTERS
RESTORE CPU
FROM STACK
REGISTERS
M68HC11E Family Data Sheet, Rev. 5.1
Y
Y
Y
Y
FETCH OPCODE
INSTRUCTION?
INSTRUCTION?
EXECUTE THIS
INSTRUCTION?
INSTRUCTION
INTERRUPT
OPCODE?
PENDING?
CCR = 1?
ANY I-BIT
ILLEGAL
BIT I IN
WAI
SWI
RTI
1A
2A
N
N
N
N
N
N
Y
Y
N
RESOLVE INTERRUPT
PRIORITY AND FETCH
VECTOR FOR HIGHEST
PENDING SOURCE
SEE FIGURE 5–2
SET BIT I IN CCR
STACK CPU
REGISTERS
INTERRUPT
PENDING?
Y
ANY
Freescale Semiconductor
STACK CPU
REGISTERS
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