MC68HC908AS60MFN MOTOROLA [Motorola, Inc], MC68HC908AS60MFN Datasheet - Page 144

• Manufacturer Part Number: MC68HC908AS60MFN
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

System Integration Module (SIM)
Technical Data
144
INTERRUPT
MODULE
I BIT
I BIT
R/W
R/W
IAB
IDB
INTERRUPT
IAB
IDB
MODULE
DUMMY
DUMMY
SP – 4
Interrupts are latched, and arbitration is performed in the SIM at the start
of interrupt processing. The arbitration result is a constant that the CPU
uses to determine which vector to fetch. Once an interrupt is latched by
the SIM, no other interrupt can take precedence, regardless of priority,
until the latched interrupt is serviced (or the I bit is cleared).
See
SP
PC – 1[7:0]
Freescale Semiconductor, Inc.
CCR
Figure
For More Information On This Product,
SP – 1
SP – 3
Figure 9-9. Interrupt Recovery
Figure 9-8
System Integration Module (SIM)
PC – 1[15:8]
9-10.
A
Go to: www.freescale.com
SP – 2
SP – 2
X
X
.
SP – 3
Interrupt Entry
SP – 1
PC – 1 [7:0]
A
SP – 4
SP
PC – 1 [15:8]
CCR
VECT H
PC
V DATA H
OPCODE
VECT L
PC + 1
MC68HC908AS60 — Rev. 1.0
OPERAND
V DATA L
START ADDR
OPCODE
MOTOROLA