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11
CHAPTER 2 MEMORY SPACE
2.2.2 Program Area
The program area in the F
2
MC-8FX CPU includes the following two:
• Vector call instruction table
• Reset and interrupt vector table
■ Vector Call Instruction Table
FFC0
H
to FFCF
H
of the memory space is used as the vector call instruction table. The vector call
instruction for the F
2
MC-8FX CPU provides access to this area according to the vector numbers included
in the OP code and makes a subroutine call using the data written there as the jump address. Table 2.2-2
indicates the correspondence of the vector numbers with the jump address table.
■ Reset and Interrupt Vector Table
FFCC
H
to FFFF
H
of the memory space is used as the table indicating the starting address of an interrupt or
reset Table 2.2-3 indicates the correspondence between the interrupt numbers or resets and the reference
table.
Table 2.2-2 CALLV Jump Address Table
CALLV Jump address table
#k Upper address Lower address
#0 FFC0
H
FFC1
H
#1 FFC2
H
FFC3
H
#2 FFC4
H
FFC5
H
#3 FFC6
H
FFC7
H
#4 FFC8
H
FFC9
H
#5 FFCA
H
FFCB
H
#6 FFCC
H
FFCD
H
#7 FFCE
H
FFCF
H