HD404818 Datasheet, PDF (22/100 Pages) Hitachi Semiconductor – 16-digit LCD driver

HD404818 Series
$ 000,0
IE
$ 000,2
IF0
$ 000,3
IM0
$ 001,0
IF1
$ 001,1
IM1
$ 001,2
IFTA
$ 001,3
IMTA
$ 002,0
IFTB
$ 002,1
IMTB
$ 002,2
IFTC
$ 002,3
IMTC
$ 003,0
IFS
$ 003,1
IMS
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.
Figure 6 Interrupt Control Circuit Block Diagram
Table 2 Vector Addresses and Interrupt Priority
Reset/Interrupt
RESET
INT₀
INT₁
Timer A
Timer B
Timer C
Serial
Priority
—
1
2
3
4
5
6
Vector Addresses
$0000
$0002
$0004
$0006
$0008
$000A
$000C
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