Here you can find a complete overview on all hardware tools for software development for NEC's microcontrollers.
IECUBE 78K0S: In-circuit emulator for 78K0S (8-bit)
IECUBE 78K0: In-circuit emulator for 78K0 (8-bit)
IECUBE 78K0R: In-circuit emulator for 78K0R (16-bit)
IECUBE V850: In-circuit emulator for V850 (32-bit)
QB-V850MINI: On-chip debugger for V850 (32-bit)
MINICUBE2: On-chip debugger for 8-bit, 16-bit and 32-bit
MCUs Flash Programmer: Universal programmer for almost all NEC microcontrollers