RX Adapter Rev8
This page provides technical information about the SEGGER RX Adapter. For an overview of SEGGER adapters, refer to Adapter Overview.
Overview
The RX Adapter connects SEGGER J-Link debug probes and Flashers to target hardware featuring Renesas RX100, RX200, and RX600 series MCUs. It adapts the standard 20-pin SEGGER connector to the 14-pin RX target connector.
Depending on the target device, the adapter can be used with JTAG or FINE. FINE connections to RX63x and RX72N devices require the separate RX FINE Adapter.
Pinout
JTAG
FINE
FINED is an open-drain signal and requires a pull-up on the target board. The recommended resistance is 1 kΩ.
Jumper settings
Interface selection
Select the jumper position matching the target interface:
- JTAG: MD0 position.
- FINE: FINE position.
Target power supply
The target-supply jumper selects 3.3 V or 5 V at target-connector pin 8 (VTref). Leave this jumper open when the adapter should not power the target; this is the delivery setting.
Supported interface connections
| Interface | RX device groups listed on the product page |
|---|---|
| FINE | RX111, RX13T, RX140, RX210, RX21A, RX220 |
| JTAG | RX610, RX621, RX62G, RX62N, RX62T, RX630, RX631, RX63N, RX63T, RX64M, RX65N, RX660, RX66T, RX71M, RX72N |
CPU signal mapping
RX111, RX210, and RX220 (FINE)
| Adapter pin / signal | RX111 CPU signal | RX210 / RX220 CPU signal |
|---|---|---|
| 1 / FINEC | FINEC / P27 | SCK1 / P27 |
| 4 / EMLE | NC | NC |
| 7 / FINED | MD_FINED (via pull-up) | MODE / MD_FINED (via pull-up) |
| 10 / UB | P14 | UB / PC7 |
| 13 / nRES | RESn | RESET_N / nRES |
RX630, RX631, RX63N, RX63T, and RX72N (JTAG)
| Adapter pin / signal | RX630 / RX631 / RX63N / RX63T CPU signal | RX72N CPU signal |
|---|---|---|
| 1 / TCK | P27 / TCK / FINEC | TCK |
| 3 / nTRST | TRSTn | TRSTn |
| 4 / EMLE | EMLE | EMLE |
| 5 / TDO | TDO | TDO |
| 7 / MD0 | MD_FINED (via pull-up) | MD (via pull-up) |
| 9 / TMS | TMS | TMS |
| 10 / UB | IRQ14 / PC7 | UB |
| 11 / TDI | TDI | TDI |
| 13 / nRES | RESn | RESn |
Schematics
The functional connection diagram below shows the signal routing and target-supply selection.
