參數(shù)資料
型號(hào): HD404458
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī))
中文描述: 4位HMCS400系列微機(jī)(4位單片微計(jì)算機(jī))
文件頁數(shù): 19/120頁
文件大?。?/td> 692K
代理商: HD404458
HD404459 Series
19
Table 3
Interrupt Processing and Activation Conditions
Interrupt Source
Interrupt
Control Bit
INT
0
1
INT
1
1
Timer D
Timer A or
INT
2
1
Timer B or
INT
3
1
Timer C or
Serial
Wakeup
IE
IF0 ·
IM0
IF1 ·
IM1
IFTD ·
IMTD
IFTA ·
IMTA
+ IF2
·
IM2
IFTB ·
IMTB
+ IF3
·
IM3
IFTC ·
IMTC
+ IFS
·
IMS
IFWU ·
IMWU
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 by
*
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 9 Interrupt Processing Sequence
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