E202075_HD404889 Datasheet, PDF (41/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
Table 1 (1) (cont) Initial Values after MCU Reset
Item
Abbr.
Initial
value Contents
Serial
interface
Serial mode register 1
Serial mode register 2
(SMR1)
(SMR2)
0000
-0X-
See serial mode register 1 section
See serial mode register 2 section
Serial data register
(SRU,L) $XX
Octal counter
000
A/D
converter
A/D mode register
A/D data register
(HD404889 Series)
(AMR)
(ADRU,L)
0000
$7F
See A/D mode register section
See A/D data register section
A/D data register
(HD404899 Series)
(ADRU,M,L) $1FF See A/D data register section
LCD
LCD control register
(LCR)
0000 See LCD control register section
LCD mode register
(LMR)
0000 See LCD duty/clock control register section
Bit
Low speed on flag
(LSON)
0
registers _{Watchdog timer on flag (WDON) 0}
See low-power mode section
See timer C section
A/D start flag
(ADSF)
0
See A/D converter section
Direct transfer on flag
(DTON)
0
See low-power mode section
Input capture status flag (ICSF)
0
See timer D section
Input capture error flag (ICEF)
0
See timer D section
Gear enable flag
(GEF)
0
See system clock gear function
Others Miscellaneous register (MIS)
0-00 See low-power mode and input/output sections
System clock select
register
(SSR)
0000 See low-power mode and oscillator circuit sections
Module standby register 1 (MSR1)
-000
See timer section
Module standby register 2 (MSR2)
--00
See serial interface and A/D converter sections
Buzzer mode register
(BMR)
0000 See Buzzer mode register section
Notes: 1. The state of registers and flags other than those listed above after an MCU reset is shown in
table 1 (2).
2. X: Indicates invalid value, - indicates that the bit does not exist.
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