upd78f0103 Renesas Electronics Corporation., upd78f0103 Datasheet - Page 331
upd78f0103
Manufacturer Part Number
upd78f0103
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0103.pdf
(485 pages)
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POC detection voltage
LVI detection voltage
Supply voltage (V
Internal reset signal
Notes 1.
Remark <1> to <8> in Figure 19-4 above correspond to <1> to <8> in the description of “when starting operation”
POC reset signal
(set by software)
(set by software)
(set by software)
(set by software)
LVI reset signal
LVIRF flag
LVIMD flag
2.
3.
LVIMK flag
LVION flag
LVIE flag
LVIF flag
in 19.4 (1) When used as reset.
The LVIMK flag is set to “1” by RESET input.
The LVIF flag may be set (1).
LVIRF is bit 0 of the reset control flag register (RESF). For details of RESF, see CHAPTER 16
RESET FUNCTION.
(V
(V
Note 3
Figure 19-4. Timing of Low-Voltage Detector Internal Reset Signal Generation
POC
DD
LVI
)
)
)
H
<2>
Note 2
<1>
<3>
Note 1
<5>
<7>
<4> 2 ms or longer
<8>
CHAPTER 19 LOW-VOLTAGE DETECTOR
<6> 0.2 ms or longer
Not cleared
Not cleared
Not cleared
User’s Manual U15836EJ5V0UD
Cleared by
software
Not cleared
Not cleared
Not cleared
Cleared by
software
Clear
Clear
Clear
Clear
Time
331
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