QB-V850MINIL, QB-V850MINI Emulator 3. On-Chip Debugging
R20UT0221EJ0400 Rev.4.00
Page 41 of 86
2013.08.30
（
b
）
When performing flash self programming
To use the FLMD0 pin as a port pin when performing flash self programming by using a user-created program,
connect the FLMD0 signal as shown in Figure 3-14.
Figure 3-14. Example Connection of FLMD0 Pin When Performing Flash Self Programming
Remark
The resistance of R2 must be at least 10 times the resistance of R1.
When leaving the FLMD0 signal output from QB-V850MINIL or QB-V850MINI open and connecting a port
signal to FLMD0 on the target device, set the output of the port to high level in the SFR or other debugger
window when writing to the flash memory during a break. When not writing to the flash memory, set the port
output to low level or set the port to input mode.
（
c
）
When target device not having an internal flash memory
The FLMD0 pin is not required to be connected.
3.3V
V
DD
74LVC1T4
DIR
FLMD0
Target system
Target
FLMD0
PORT
R1
R2
QB-V850MINIL/
QB-V850MINI
