QB-R5F100SL-TB datasheet(118/207 Pages) RENESAS

118 / 207 page

RL78/G13

2. ELECTRICAL SPECIFICATIONS (TA = –40 to +85°C)

R01DS0131EJ0350 Rev.3.50

118 of 200

Jun 30, 2020

2.9 Dedicated Flash Memory Programmer Communication (UART)

(TA = –40 to +85°C, 1.8 V

≤ EVDD0 = EVDD1 ≤ VDD ≤ 5.5 V, VSS = EVSS0 = EVSS1 = 0 V)

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

Transfer rate

During serial programming

115,200

1,000,000

bps

2.10 Timing of Entry to Flash Memory Programming Modes

(TA = –40 to +85°C, 1.8 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

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.

µs

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)

tHD

POR and LVD reset must be released before

the external reset is released.

RESET

TOOL0

<1>

<2>

<3>

tSU

<4>

tSUINIT

723 µs + tHD

processing

time

1-byte data for setting mode

<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 tSUINIT: Communication for the initial setting must be completed within 100 ms after the external reset is released

during this period.

tSU:

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)

QB-R5F100SL-TB Datasheet(PDF) 118 Page - Renesas Technology Corp

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