參數(shù)資料
型號: HD404448
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer(4位單片微計算機)
中文描述: 4位HMCS400系列微機(4位單片微計算機)
文件頁數(shù): 20/123頁
文件大?。?/td> 726K
代理商: HD404448
HD404449 Series
20
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 or
A/D
Serial 1 or
Serial 2
IE
IF0
.
IM0
IF1
.
IM1
IFTA
.
IMTA
IFTB
.
IMTB
+ IF2
.
IM2
IFTC
.
IMTC
+ IF3
.
IM3
IFTD
.
IMTD
+ IFAD
.
IMAD
IFS1
.
IMS1
+ IFS2
.
IMS2
Note:
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
Bits marked
*
can be either 0 or 1. Their values have no effect on operation.
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:
*
The stack is accessed and the IE reset after the instruction
is executed, even if it is a two-cycle instruction.
Stacking
Figure 10 Interrupt Processing Sequence
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