NEC Renesas V850/SC1 User Manual page 504

(2) Malfunction of other device
When connecting a dedicated flash programmer (output or input) to a serial interface pin (input or output) that is
connected to another device (input), the signal output to the other device may cause the device to malfunction.
To avoid this, isolate the connection to the other device or set so that the input signal to the other device is
ignored.
V850/SC1, V850/SC2,
V850/SC1, V850/SC2,
V850/SC3
502
FLASH MEMORY ( µ µ µ µ PD70F3089Y)
CHAPTER 17
Figure 17-8. Malfunction of Other Device
V850/SC3
Pin
In the flash memory programming mode, if the
signal the V850/SC1, V850/SC2, and V850/SC3
outputs affects the other device, isolate the signal on
the other device side.
Pin
In the flash memory programming mode, if the
signal the dedicated flash programmer outputs
affects the other device, isolate the signal on the
other device side.
User's Manual U15109EJ3V0UD
Dedicated flash programmer connection pin
Other device
Input pin
Dedicated flash programmer connection pin
Other device
Input pin