mc68hc908qb4 Freescale Semiconductor, Inc, mc68hc908qb4 Datasheet - Page 147

• Manufacturer Part Number: mc68hc908qb4
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
ADDRESS BUS
ADDRESS BUS
INTERRUPT
INTERRUPT
DATA BUS
DATA BUS
MODULE
MODULE
I BIT
I BIT
R/W
R/W
DUMMY
DUMMY
INT1
INT2
Figure 14-10
SP – 4
SP
PC – 1[7:0] PC – 1[15:8]
CCR
CLI
LDA
PSHH
PULH
RTI
PSHH
PULH
RTI
Figure 14-9. Interrupt Recovery
MC68HC908QB8 Data Sheet, Rev. 2
SP – 1
Figure 14-8
SP – 3
#$FF
.
A
Interrupt Recognition Example
SP – 2
SP – 2
.
X
Interrupt Entry
X
SP – 3
SP – 1
PC – 1[7:0] PC – 1[15:8] OPCODE
INT1 INTERRUPT SERVICE ROUTINE
INT2 INTERRUPT SERVICE ROUTINE
A
SP – 4
SP
CCR
VECT H
PC
V DATA H
BACKGROUND ROUTINE
VECT L
PC + 1
V DATA L
OPERAND
START ADDR
Exception Control
OPCODE
147