Eit Vector Table - Fujitsu MB91150 Series Hardware Manual

CHAPTER 3 MEMORY SPACE, CPU AND CONTROL UNIT
3.8.3

EIT Vector Table

The table base register (TBR) indicates the first address of the EIT vector table.
The vector area for EIT is a 1-KB area starting at the address indicated by the table
base register (TBR).
I EIT vector table
The size per vector is four bytes. The relationship between a vector number and vector address
can be expressed as follows:
vctadr = TBR + vctofs = TBR + (03FC
vctadr: Vector address
vctofs: Vector offset
vct: Vector number
The lower two bits of the addition result are always handled as 00.
The area of 000FFC00
vectors are assigned special functions. Table 3.8-2 "Vector table" shows the vector table for the
architecture.
56
- 4 x vct)
H
to 000FFFFF is the initial area of the vector table for reset. Some
H H