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HD404849FS датащи(PDF) 23 Page - Renesas Technology Corp

номер детали HD404849FS
подробное описание детали  4-Bit Single-Chip Microcomputer
PDF  127 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD404849FS датащи(HTML) 23 Page - Renesas Technology Corp

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HD404849 Series
21
Table 3 Interrupt Processing and Activation Conditions
Interrupt Source
Interrupt Control Bit
INT
0
INT
1
Timer A
Timer B
or INT
2
Timer C
or INT
3
Timer D
A/D or
Serial
IE
11111
11
IF0 •
IM0
10000
00
IF1 •
IM1
*
1000
00
IFTA •
IMTA
**
100
00
IFTB •
IMTB + IF2 • IM2 ***
10
00
IFTC •
IMTC + IF3 • IM3 ****
10
0
IFTD •
IMTD
*****
10
IFAD •
IMAD + IFS • IMS *****
*
1
Note:
Bits marked * can be either 0 or 1. Their values have no effect on operation.
Instruction cycles
12
3
4
5
6
Instruction
execution
IE reset
Interrupt
acceptance
Execution of JMPL
instruction at vector address
Execution of
instruction at
start address
of interrupt
routine
Vector address
generation
Note: *
*
Stacking
The stack is accessed and the IE reset after the instruction
is executed, even if it is a two-cycle instruction.
Figure 10 Interrupt Processing Sequence



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