參數(shù)資料
型號: HD4074394S
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系列微電腦(4位單片微計算機)
文件頁數(shù): 27/100頁
文件大?。?/td> 610K
代理商: HD4074394S
HD404344R Series/HD404394 Series
27
Table 2
Interrupt Processing and Activation Conditions
Interrupt Source
INT
0
1
Interrupt Control Bit
Timer B
Timer C
A/D
Serial
IE
IF0 ·
IM0
IFTB ·
IMTB
IFTC ·
IMTC
IFAD ·
IMAD
IFS ·
IMS
Note:
1
1
1
1
1
0
0
0
0
*
1
0
0
0
*
*
1
0
0
*
*
*
1
0
*
*
*
*
1
*
Can be either 0 or 1. Their values have no effect on operation.
Instruction cycles
1
2
3
4
5
6
Instruction
execution
*
Interrupt
acceptance
Execution of JMPL
instruction at vector address
Execution of
instruction at
start address
of interrupt
routine
Stacking;
Vector address
generation
Stacking;
IE reset
Note:
*
The stack is accessed and the interrupt enable flag is reset after the instruction is executed, even
if it is a two-cycle instruction.
Figure 9 Interrupt Processing Sequence
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