Fujitsu MB90480 Series Hardware Manual page 57

Table 2.3-1 Level indicated by interrupt level mask register (ILM)
ILM2 ILM1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
ILM0 Level value
0 0
1 1
0 2
1 3
0 4
1 5
0 6
1 7
CHAPTER 2 CPU
Permitted interrupt level
Interrupt prohibited
"0" only
Level value less than 1
Level value less than 2
Level value less than 3
Level value less than 4
Level value less than 5
Level value less than 6
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