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コンポーネント説明
HD404848H データシートの表示(PDF) - Renesas Electronics
部品番号
コンポーネント説明
メーカー
HD404848H
4-Bit Single-Chip Microcomputer
Renesas Electronics
HD404848H Datasheet PDF : 127 Pages
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HD404849 Series
Interrupt
enable flag
$ 000,0
IE
INT
0
interrupt
$ 000,2
IF0
$ 000,3
IM0
INT
1
interrupt
$ 001,0
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
Timer D interrupt IFTD
$ 003,1
IMTD
A/D interrupt
$ 003,2
IFAD
$ 003,3
IMAD
Note: $m,n is RAM address $m, bit number n.
Sequence control
• Push PC/CA/ST
• Reset IE
• Jump to vector
address
Priority control logic
Vector
address
$ 022,0
IF2 INT
2
interrupt
$ 022,1
IM2
$ 022,2
IF3 INT
3
interrupt
$ 022,3
IM3
$ 023,2
IFS Serial interrupt
$ 023,3
IMS
Figure 9 Interrupt Control Circuit
20
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