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HD404459 Datasheet(PDF) 11 Page - Renesas Technology Corp

Part # HD404459
Description  4-bit HMCS400-series microcomputers
Download  122 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD404459 Datasheet(HTML) 11 Page - Renesas Technology Corp

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HD404459 Series
9
0
1
2
3
Bit 3
Bit 2
Bit 1
Bit 0
IMTD
(IM of timer D)
IFTD
(IF of timer D)
IM1
(IM of
INT1)
IF1
(IF of
INT1)
IMTB
(IM of timer B)
IFTB
(IF of timer B)
IMTA
(IM of timer A)
IFTA
(IF of timer A)
IMWU
(IM of wakeup)
IMTC
(IM of timer C)
IFTC
(IF of timer C)
$000
$001
$002
$003
Interrupt control bits area
IM0
(IM of
INT0)
IF0
(IF of
INT0)
RSP
(Reset SP bit)
IE
(Interrupt
enable flag)
32
33
34
35
ICSF
(Input capture
status flag)
IM3
(IM of INT3)
IF3
(IF of INT3)
IM2
(IM of INT2)
IF2
(IF of INT2)
IMS
(IM of serial)
IFS
(IF of serial)
$020
$021
$022
$023
Register flag area
DTON
(Direct transfer
on flag)
CMSF
(Comparator
start flag)
WDON
(Watchdog
on flag)
LSON
(Low speed
on flag)
ICEF
(Input capture
error flag)
RAME
(RAM enable
flag)
Not used
IF:
IM:
SP:
Interrupt request flag
Interrupt mask
Stack pointer
Bit 3
Bit 2
Bit 1
Bit 0
IFWU
(IF of wakeup)
Not used
Not used
Figure 3 Configuration of Interrupt Control Bits and Register Flag Areas
IE
IM
LSON
IF
ICSF
ICEF
RAME
RSP
WDON
CMSF
Not used
DTON
SEM/SEMD
REM/REMD
TM/TMD
Allowed
Allowed
Allowed
Not executed
Allowed
Allowed
Not executed
Allowed
Inhibited
Allowed
Not executed
Inhibited
Allowed
Inhibited
Allowed
Not executed in active mode
Allowed
Allowed
Used in subactive mode
Not executed
Not executed
Inhibited
Note: WDON is reset by MCU reset or by
STOPC enable for stop mode cancellation.
The REM or REMD instuction must not be executed for CMSF during comparator
operation. 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 undefined.
Figure 4 Usage Limitations of RAM Bit Manipulation Instructions


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