Datasheet

78K0/Kx2-L CHAPTER 26 ON-CHIP DEBUG FUNCTION
R01UH0028EJ0400 Rev.4.00 718
Sep 27, 2010
CHAPTER 26 ON-CHIP DEBUG FUNCTION
26.1 Connecting QB-MINI2 to 78K0/Kx2-L Microcontrollers
The 78K0/Kx2-L microcontrollers use the V
DD, RESET, TOOLC0/X1 (or TOOLC1/P31), TOOLD0/X2 (or TOOLD1/P32),
and V
SS pins to communicate with the host machine via an on-chip debug emulator (QB-MINI2). Whether TOOLC0/X1 and
TOOLC1/P31, or TOOLD0/X2 and TOOLD1/P32 are used can be selected.
Cautions 1. The 78K0/Kx2-L microcontrollers have 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.
2. When transitioning to STOP mode during on-chip debugging, oscillation of the internal high-speed
oscillator continues, but the on-chip debug operation is not affected.
Remark The 78K0/KY2-L is not provided with the TOOLC1/P31 and TOOLD1/P32 pins.
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