RL78/G10 CHAPTER 21 ON-CHIP DEBUG FUNCTION
R01UH0384EJ0311 Rev. 3.11 558
Dec 22, 2016
CHAPTER 21 ON-CHIP DEBUG FUNCTION
21.1 Connecting E1 On-chip Debugging Emulator
The RL78 microcontroller uses the V
DD, RESET, TOOL0, and VSS pins to communicate with the host machine via an E1
on-chip debugging emulator. Serial communication is performed by using a single-line UART that uses the TOOL0 pin.
Caution The RL78 microcontroller has an on-chip debug function, which is provided for development and
evaluation. Do not use the on-chip debug function in products designated for mass production,
because the guaranteed number of rewritable times of the flash memory may be exceeded when this
function is used, and product reliability therefore cannot be guaranteed. Renesas Electronics is not
liable for problems occurring when the on-chip debug function is used.
Figure 21-1. Connection Example of E1 On-chip Debugging Emulator and RL78 microcontroller
V
DD
EMV
DD
GND
GND
GND
TOOL0
Reset_out
Reset_out
RSTPU
Reset_in
V
DD
V
DD
V
DD
V
DD
8
9
2
12
14
5
10
13
4
6
V
DD
V
SS
TOOL0
RESET
Note
Note
E1 target connector
Reset circuit
Reset signal
RL78/G10
1 kΩ
1 kΩ
470 to 570 Ω
Note Connecting is not necessary during flash programming.
To Next Page
Loading...
Need help?
General
