參數(shù)資料
型號(hào): HD404324
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系列微電腦(4位單片微計(jì)算機(jī))
文件頁數(shù): 11/94頁
文件大小: 573K
代理商: HD404324
HD404328 Series
11
Bit 3
IM0
Bit 2
IF0
Bit 1
RSP
Bit 0
IE
(IM of
INT
)
IMTA
(IM of timer A)
IMTC
(IM of timer C)
IMAD
(IM of A/D)
0
(IF of
INT
)
IFTA
(IF of timer A)
IFTC
(IF of timer C)
IFAD
(IF of A/D)
(Reset SP bit)
IM1
(IM of INT )
IMTB
(IM of timer B)
IMZC
(IM of ZCD)
(Interrupt enable flag)
IF1
(IF of INT )
IFTB
(IF of timer B)
IFZC
(IF of ZCD)
0
DTON
(Direct transfer on flag)
ADSF
(A/D start flag)
WDON
(Watchdog on flag)
LSON
(Low speed on flag)
IMS
(IM of serial interface)
IF:
IM:
IE:
SP:
Stack pointer
Note: Bits in the interrupt control bits area and register flag area are set by the SEM or SEMD instruction,
reset by the REM or REMD instruction, and tested by the TM or TMD instruction. Other
instructions have no effect.
However, note the following usage limitations of RAM bit manipulation instructions.
IFS
(IF of serial interface)
Interrupt request flag
Interrupt mask
Interrupt enable flag
$000
$001
$002
$003
$020
$021
$022
$023
0
1
2
3
32
33
34
35
Not used
SEM/SEMD
Not executed
Not executed
Allowed
Not executed in active mode
Used in subactive mode
REM/REMD
Allowed
Allowed
Not executed
Allowed
TM/TMD
Allowed
Inhibited
Inhibited
Allowed
IF
RSP
WDON
DTON
Note: WDON is reset by MCU reset.
DTON is always reset in active mode.
If the TM or TMD instruction is executed for the inhibited bits or non-existing bits,
the value in ST becomes invalid.
Figure 3 Configuration of Interrupt Control Bits and Register Flag Areas
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