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3.2.3. Starting in single boot mode
Refer to the reference manual "Flash Memory" for the details of "single boot mode".
Starting by the RESET_N pin
When "Low" is inputted to a BOOT_N pin, if reset is released (a RESET_N pin "Low" to "High"), "Single Boot
Mode" is started
When turn on power supply, input "Low" to the RESET_N pin longer than "Internal initialization time" to reset.
And release reset, after a supply voltage goes up into an operating voltage range.
Operating Voltage range
LVD Release
Voltage
(V
)
LVL0
POR release
Voltage
(V
)
PREL
0V
RESET_N pin
LVD reset
Internal reset
Control internal
Pull-up of
BOOT_N pin
BOOT_N pin
Single Boot
Mode
Figure 3.6 When the power supply is on, starting in single boot mode by the RESET_N pin
Power slope
(V
PON
LVD detection release time(t
Internal initilization time(
ON
OFF
Low level input
58 / 64
Clock Control and Operation Mode
)
)
VDDT2
t
)
IINIT
TXZ+ Family
TMPM4M Group(1)
DVDD5=DVDD5A=DVDD5B=AVDD5
DVDD5
CPU Operation
start
t
CPU operation wait time(
)
CPUWT
OFF
Open
Single boot mode
2022-06-24
Rev. 1.1
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