Datasheet

RL78/G13 3. ELECTRICAL SPECIFICATIONS (G: T
A = -40 to +105°C)
Page 175 of 194R01DS0131EJ0310 Rev.3.10
Nov 15, 2013
3.10 Timing Specs for Switching Flash Memory Programming Modes
(TA = −40 to +105°C, 2.4 V ≤ EVDD0 = EVDD1 ≤ VDD ≤ 5.5 V, VSS = EVSS0 = EVSS1 = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Time to complete the
communication for the initial
setting after the external reset is
released
tSUINIT POR and LVD 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
tSU POR and LVD reset must be released before
the external reset is released.
10 μ s
Time to hold the TOOL0 pin at the
low level after the external reset is
released
(excluding the processing time of
the firmware to control the flash
memory)
t
HD POR and LVD reset must be released before
the external reset is released.
1 ms
RESET
TOOL0
<1>
<2>
<3>
t
SUINIT
723 µs + t HD
processing
time
00H reception
(TOOLRxD, TOOLTxD mode)
t SU
<4>
<1> The low level is input to the TOOL0 pin.
<2> The external reset is released (POR and LVD reset must be released before the
external reset is released.).
<3> The TOOL0 pin is set to the high level.
<4> Setting of the flash memory programming mode by UART reception and complete
the baud rate setting.
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
tHD: Time to hold the TOOL0 pin at the low level after the external reset is released (excluding the
processing time of the firmware to control the flash memory)