CHAPTER 27 FLASH MEMORY
Page 808 of 920
27.1.1
Programming Environment
The environment required for writing a program to the flash memory of the RL78 microcontroller is illustrated
below.
Figure 27 - 1 Environment for Writing Program to Flash Memory
A host machine that controls the dedicated flash memory programmer is necessary.
To interface between the dedicated flash memory programmer and the RL78 microcontroller, the TOOL0 pin is
used for manipulation such as writing and erasing via a dedicated single-line UART.
27.1.2
Communication Mode
Communication between the dedicated flash memory programmer and the RL78 microcontroller is established
by serial communication using the TOOL0 pin via a dedicated single-line UART of the RL78 microcontroller.
Transfer rate: 1 M, 500 k, 250 k, 115.2 kbps
Figure 27 - 2 Communication with Dedicated Flash Memory Programmer
Note 1.
When using E1 on-chip debugging emulator.
Note 2.
When using PG-FP5 or FL-PR5.
Note 3.
Connect REGC pin to ground via a capacitor (0.47 to 1
μ
F).
TOOL0
(dedicated single-line UART)
RESET
V
SS
V
DD
Host machine
PG-FP5, FL-PR5
E1
Dedicated flash
memory programmer
RS-232C
USB
PG-FP5, FL-PR5
E1
Dedicated flash
memory programmer
V
DD
EMV
FLMD
GND
/RESET
TOOL0
,
SI/RxD
V
DD
V
DD
V
SS
/REGC
RESET
TOOL0
Содержание RL78/G1H
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