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HD4043312 View Datasheet(PDF) - Renesas Electronics

Part NameDescriptionManufacturer
HD4043312 4-bit HMCS400-Series microcomputer with large-capacity memory Renesas
Renesas Electronics Renesas
HD4043312 Datasheet PDF : 80 Pages
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Table 1 Initial Values of Flags after MCU Reset
Item
Interrupt flags/mask
Bit registers
Interrupt enable flag (IE)
Interrupt request flag (IF)
Interrupt mask (IM)
Watchdog timer on flag (WDON)
A/D start flag (ADSF)
Input capture status flag (ICSF)
Input capture error flag (ICEF)
IAD off flag (IAOF)
RAM enable flag (RAME)
Low speed on flag (LSON)
Direct transfer on flag (DTON)
HD404339 Series
Initial Value
0
0
1
0
0
0
0
0
0
0
0
RAM Address
$0000
Bit 3
IM0
(IM of INT0)
$0001
IMTA
(IM of timer A)
$0002
IMTC
(IM of timer C)
$0003
IMS
(IM of serial)
Bit 2
IF0
(IF of INT0)
IFTA
(IF of timer A)
IFTC
(IF of timer C)
IFS
(IF of serial)
Bit 1
RSP
(Reset SP bit)
IM1
(IM of INT1)
IMTB
(IM of timer B)
IMAD
(IM of A/D)
Bit 0
IE
(Interrupt
enable flag)
IF1
(IF of INT1)
IFTB
(IF of timer B)
IFAD
(IF of A/D)
Interrupt control bits area
$020
$021
IF: Interrupt
request flag
IM: Interrupt
$022
mask
IE: Interrupt
enable flag
$023
SP: Stack pointer
Bit 3
DTON
(Direct transfer
on flag)
RAME
(RAM enable
flag)
Bit 2
ADSF
(A/D start flag)
IAOF
(IAD off flag)
Bit 1
WDON
(Watchdog
on flag)
ICEF
(Input capture
error flag)
Not used
Register flag area
Bit 0
LSON
(Low speed
on flag)
ICSF
(Input capture
status flag)
Figure 3 Interrupt Control Bits and Register Flag Areas Configuration
11
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