Description of ISP connector pins: 1 - Target VCC check only 2 - GND (VSS) 3 - Don't connect! 4 - GND (VSS) 5 - MODE 6 - GND (VSS) 7 - RESET 8 - GND (VSS) 9 - RxD (pin P0_0 for R8C/10, pin P4_5 for R8C/14,15,1A,1B,26,27,28,29 group, pin P1_5 for R8C/33,34,35,36 group, pin P1_6 for R8C/M1,M13B group,...

Device info of r5f21258 ( r8c/25 ) don't have txd and rxd description.Regards

Hello I have same trouble with ISP connector of BeeProg2 programmer.
Is not clear for me how connect my programmer with recommended target circuit design to mcu.
Sorry for my poor English
I 'ld like connect the programmer without using 2 wire interface

Hello.I have a mainboard to reprogram with r5f21258 .the connector to do the job have only
vcc gnd reset and mode connected to micro.the my dataman need to connect more pin.
how can i do the reprogramming without solder a more wire?