Renesas RL78/G1P Hardware User Manual page 710

16-bit single-chip microcontroller

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24.1 Connecting E1, E2, E2 Lite, E20 On-chip Debugging Emulator to RL78/G1P

The RL78/G1P uses the V

Lite, E20 on-chip debugging emulator. Serial communication is performed by using a single-line UART that uses the

Caution The RL78/G1P 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 24-1. Connection Example of E1, E2, E2 Lite, E20 On-chip Debugging Emulator and RL78/G1P

E1, E2, E2 Lite, E20

target connector

Notes 1. Connecting the dotted line is not necessary during flash programming.

2. If the reset circuit on the target system does not have a buffer and generates a reset signal only with

resistors and capacitors, this pull-up resistor is not necessary.

Caution This circuit diagram is assumed that the reset signal outputs from an N-ch O.D. buffer (output

resistor: 100  or less)

R01UH0895EJ0100 Rev.1.00

Nov 29, 2019

CHAPTER 24 ON-CHIP DEBUG FUNCTION

, RESET, TOOL0, and V

CHAPTER 24 ON-CHIP DEBUG FUNCTION

pins to communicate with the host machine via an E1, E2, E2

Reset circuit

Reset signal