HD404459 Datasheet, PDF (20/122 Pages) Renesas Technology Corp – 4-bit HMCS400-series microcomputers

HD404459 Series
$000,0
IE
INT₀ interrupt
$000,2
IF0
$000,3
IM0
INT₁ interrupt
$001,0
IF1
$001,1
IM1
$001,2
Timer D interrupt IFTD
$001,3
IMTD
$002,0
Timer A interrupt IFTA
$002,1
IMTA
$002,2
Timer B interrupt IFTB
$002,3
IMTB
$003,0
Timer C interrupt IFTC
$003,1
IMTC
$003,2
Wakeup interrupt IFWU
$003,3
IMWU
Sequence control
• Push PC/CA/ST
• Reset IE
• Jump to vector
address
Priority control PLA
Vector
address
$022,0
IF2 INT₂ interrupt
$022,1
IM2
$022,2
IF3 INT₃ interrupt
$022,3
IM3
$023,0
IFS Serial interrupt
$023,1
IMS
Figure 8 Interrupt Control Circuit
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