HD404328 Datasheet, PDF (20/96 Pages) Hitachi Semiconductor – 4 BIT SINGLE CHIP MICROCOMPUTER

HD404328 Series
$000, 0
IE
$000, 2
INT₀ interrupt IF0
$000, 3
IM0
$001, 0
INT₁ interrupt IF1
$001, 1
IM1
$001, 2
Timer A interrupt IFTA
$001, 3
IMTA
$002, 0
Timer B interrupt IFTB
$002, 1
IMTB
$002, 2
Timer C interrupt IFTC
$002, 3
IMTC
$003, 0
ZCD interrupt IFZC
$003, 1
IMZC
$003, 2
A/D interrupt IFAD
$003, 3
IMAD
Sequence control
• Push PC/CA/ST
• Reset IE
• Jump to vector address
Priority control logic
Vector
address
Note: $m, n is RAM address $m,
bit number n.
$023, 2
IFS Serial interrupt
$023, 3
IMS
Figure 6 Block Diagram of Interrupt Control Circuit
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