E202075_HD404889 Datasheet, PDF (117/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
MCU reset (00)
STS instruction wait state
(octal counter ="000",
serial clock disabled)
SMR1 write (04)
STS instruction (01)
SMR1 write (06)
(IFS ← "1")
Serial clock wait state
(octal counter ="000")
Serial clock (02)
8 serial clocks (03)
STS instruction (05)
(IFS ← "1")
External clock mode
Transfer state
(octal counter ≠"000")
MCU reset (10)
SMR1 write (18)
STS instruction wait state
(octal counter ="000",
serial clock disabled)
Clock continuous output state
(PMR33 ="0")
SMR1 write (14)
STS instruction (11)
Serial clock (17)
Serial clock wait state
(octal counter ="000")
Serial clock (12)
STS instruction (15)
(IFS←"1")
Internal clock mode
( ) Refer to the text for details on the circled numbers in the figure.
8 serial clocks (13)
SMR1 write (16)
(IFS←"1")
Transfer state
(octal counter ≠"000")
Figure 63 Serial Interface Operating States
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