RL78/G1H CHAPTER 27 FLASH MEMORY
R01UH0575EJ0120 Rev. 1.20 Page 807 of 920
Dec 22, 2016
27.1 Serial Programming Using Flash Memory Programmer
The following dedicated flash memory programmer can be used to write data to the internal flash memory of the
RL78 microcontroller.
• PG-FP5, FL-PR5
• E1 on-chip debugging emulator
Data can be written to the flash memory on-board or off-board, by using a dedicated flash memory programmer.
(1) On-board programming
The contents of the flash memory can be rewritten after the RL78 microcontroller has been mounted on the
target system. The connectors that connect the dedicated flash memory programmer must be mounted on the
target system.
(2) Off-board programming
Data can be written to the flash memory with a dedicated program adapter (FA series) before the RL78
microcontroller is mounted on the target system.
Remark FL-PR5 and FA series are products of Naito Densei Machida Mfg. Co., Ltd.
Table 27 - 1 Wiring Between RL78/G1H and Dedicated Flash Memory Programmer
Note Connect REGC pin to ground via a capacitor (0.47 to 1 μF).
Remark Pins that are not indicated in the above table can be left open when using the flash memory programmer for flash
programming.
Pin Configuration of Dedicated Flash Memory Programmer
Pin Name Pin No.
Signal Name
I/O Pin Function
PG-FP5,
FL-PR5
E1 on-chip
Debugging Emulator
SI/RxD TOOL0 I/O
Transmit/
receive signal
TOOL0/
P40
6
/RESET RESET
Output Reset signal RESET 7
V
DD I/O
V
DD voltage generation/
power monitoring
V
DD 15
GND — Ground
V
SS 14
REGC
Note
13
FLMD1 EMV
DD — Driving power for TOOL0 pin VDD 15
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