參數(shù)資料
型號: HD4074849FS
廠商: Hitachi,Ltd.
英文描述: CONTACT
中文描述: 4位單片機
文件頁數(shù): 21/125頁
文件大?。?/td> 471K
代理商: HD4074849FS
HD404849 Series
21
Table 3 Interrupt Processing and Activation Conditions
Interrupt Source
Interrupt Control Bit
INT
0
1
INT
1
1
Timer A
Timer B
or INT
2
1
Timer C
or INT
3
1
Timer D
A/D or
Serial
IE
IF0
IM0
IF1
IM1
IFTA
IMTA
IFTB
IMTB
+ IF2
IM2
IFTC
IMTC
+ IF3
IM3
*
IFTD
IMTD
IFAD
IMAD
+ IFS
IMS
*
Note:
Bits marked
*
can be either 0 or 1. Their values have no effect on operation.
1
1
1
1
0
0
0
0
0
0
*
1
0
0
0
0
0
*
*
1
0
0
0
0
*
*
*
1
0
0
0
*
*
*
1
0
0
*
*
*
*
*
1
0
*
*
*
*
*
1
Instruction cycles
1
2
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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