NEC UPD703116 User Manual page 732

V850E/IA1
Input pin
(2) Malfunction of the other device
When connecting a dedicated flash programmer (output or input) to a serial interface pin (input or output)
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 make the setting so that the input
signal to the other device is ignored.
V850E/IA1
V850E/IA1
732
CHAPTER 16 FLASH MEMORY (
Figure 16-6. Conflict of Signals (Serial Interface Input Pin)
Conflict of signals
In the flash memory programming mode, the signal that the
dedicated flash programmer sends out conflicts with signals the
other device outputs. Therefore, isolate the signals on the other
device side.
Figure 16-7. Malfunction of Other Device
Pin
In the flash memory programming mode, if the signal the
V850E/IA1 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 U14492EJ5V0UD
µ
PD70F3116)
Dedicated flash programmer connection pin
Other device
Output pin
Dedicated flash programmer connection pin
Other device
Input pin
Dedicated flash programmer connection pin
Other device
Input pin