Rev. 1.0, 02/00, page 340 of 1141
16.5
Interrupt Causes
Total seven interrupt causes exist with Timer X1, namely, ICIA through ICID, OCIA, OCIB and
FOVI. Table 16.5 lists the contents of interrupt causes. Interrupt requests can be permitted or
prohibited by setting interrupt enabling bits of the TIER. Also, independent vector addresses are
allocated to respective interrupt causes.
Table 16.5
Interrupt Causes of Timer X1
Abbreviations of the Interrupt Causes
Priority Degree
Contents
ICIA
Interrupt request by the ICFA
ICIB
Interrupt request by the ICFB
ICIC
Interrupt request by the ICFC
ICID
Interrupt request by the ICFD
OCIA
Interrupt request by the OCFA
OCIB
Interrupt request by the OCFB
FOVI
Interrupt request by the OVF
High
Low