Renesas RL78/G1P Hardware User Manual page 690

RL78/G1P
23.1.1 Programming environment
The environment required for writing a program to the flash memory of the RL78/G1P is illustrated below.
Host machine
A host machine that controls the dedicated flash memory programmer is necessary.
To interface between the dedicated flash memory programmer and the RL78/G1P, the TOOL0 pin is used for
manipulation such as writing and erasing via a dedicated single-line UART.
23.1.2 Communication mode
Communication between the dedicated flash memory programmer and the RL78/G1P is established by serial
communication using the TOOL0 pin via a dedicated single-line UART of the RL78/G1P.
Transfer rate: 1 M, 500 k, 250 k, 115.2 kbps
Figure 23-2. Communication with Dedicated Flash Memory Programmer
PG-FP6
Dedicated flash
memory programmer
Notes 1. The name of the signal for connection in the case of the PG-FP6 is V
2. When using E1, E2, E2 Lite, E20 on-chip debugging emulator.
3. When using PG-FP6.
4. Connect REGC pin to ground via a capacitor (0.47 to 1
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
Figure 23-1. Environment for Writing Program to Flash Memory
PG-FP6
RS-232C
USB
Dedicated flash
memory programmer
V
E1, E2, E2 Lite, E20 EMV
FLMD1
RESET
/RESET
TOOL0
SI/RxD
E1, E2, E2 Lite, E20
TOOL0 (dedicated single-line U ART)
Note 1
V
DD
DD Note 2
,
V
Note 3
GND V
Note 2
,
RESET
Note 3
Note 2
,
TOOL0
Note 3

F).
CHAPTER 23 FLASH MEMORY
V
DD
V
SS
RESET
RL78/G1P
DD
DD
Note 4
/ REGC
SS
RL78/G1P
.
CC
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