Renesas RL78/G10

RL78/G10 CHAPTER 24 ELECTRICAL SPECIFICATIONS
R01UH0384EJ0311 Rev. 3.11 605
Dec 22, 2016
24.10 Timing of Entry to Flash Memory Programming Modes
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Time to complete the
communication for the initial setting
after the external reset is released
t
SUINIT
SPOR reset must be released before the
external reset is released.
100 ms
Time to release the external reset
after the TOOL0 pin is set to the
low level
t
SU
SPOR reset must be released before the
external reset is released.
10 µs
Time to hold the TOOL0 pin at the
low level after the external reset is
released
t
HD
SPOR reset must be released before the
external reset is released.
1 ms
RESET
TOOL0
<1>
<2>
<3
>
t
SUINIT
t HD
t SU
<4>
1-byte data for mode setting
<1> The low level is input to the TOOL0 pin.
<2> The external reset is released (SPOR reset must be released before the external reset is
released.).
<3> The TOOL0 pin is set to the high level.
<4> Setting of entry to the flash memory programming mode by UART reception is completed.
Remark t
SUINIT: Communication for the initial setting must be completed within 100 ms after the external reset is released
during this period.
t
SU: Time to release the external reset after the TOOL0 pin is set to the low level
t
HD: Time to hold the TOOL0 pin at the low level after the external reset is released