Fujitsu CM71-00101-5E User Manual
8
CHAPTER 2 MEMORY ARCHITECTURE
2.1.2
Vector Table Area
An area of 1 Kbyte beginning with the address shown in the table base register (TBR) is
used to store "EIT" vector addresses.
used to store "EIT" vector addresses.
■
Overview of Vector Table Areas
An area of 1 Kbyte beginning with the address shown in the table base register (TBR) is used to store "EIT"
vector addresses. Data written to this area includes entry addresses for exception processing, interrupt
processing and trap processing.
The table base register (TBR) can be rewritten to allocate this area to any desired location within word
alignment limitations.
Figure 2.1-3 Relation between Table Base Register (TBR) and Vector Table Addresses
0000 0000
H
FFFF FFFF
H
TBR
1 K
b
yte
N
u
m
b
er
Off
s
et
from TBR
EIT
s
o
u
rce
FF
H
FE
H
FD
H
FC
H
00
H
000
H
004
H
00
8
H
00C
H
3
FC
H
Entry
a
ddre
ss
for INT in
s
tr
u
ction
Entry
a
ddre
ss
for INT in
s
tr
u
ction
Entry
a
ddre
ss
for INT in
s
tr
u
ction
Entry
a
ddre
ss
for INT in
s
tr
u
ction
Entry
a
ddre
ss
for re
s
et proce
ss
ing
Memory
s
p
a
ce
Vector
t
t
ab
le
a
re
a