FUJITSU MB91F109 FR30 - Manual (Page 84)

60
CHAPTER 2 CPU
2.8.6 EIT Vector Table
The 1-kilobyte area beginning from the address, indicated by the table base register
(TBR), is the EIT vector area.
■ EIT Vector Table
The area size per vector is 4 bytes. The relationship between a vector number and vector
address is represented as follows:
The two low-order bits of the result of addition are always treated as 00.
The area ranging from 000FFC00
H
to 000FFFFF
H
is the initial area of the vector table after it is
reset.
vctadr = TBR + vctofs
= TBR + (3FC
H
- 4 x vct)
vctadr: vector address
vctofs: vector offset
vct: vector number