MOTOROLA M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL 7- 11
periods, the number of read cycles, and the number of write cycles, respectively, must be
added to those of the effective address calculation where indicated by a plus sign (+).
Table 7-15. Exception Processing
Execution Times
Exception Periods
Address Error 94(8/14)
Bus Error 94(8/14)
CHK Instruction 68(8/6)+
Divide by Zero 66(8/6)+
Interrupt 72(9/6)*
Illegal Instruction 62(8/6)
Privilege Violation 62(8/6)
RESET ** 64(12/0)
Trace 62(8/6)
TRAP Instruction 62(8/6)
TRAPV Instruction 66(10/6)
+ Add effective address calculation time.
** Indicates the time from when RESET and HALT are first
sampled as negated to when instruction execution starts.
Frees
cale Semiconductor,
I
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