CHAPTER 18 FLASH MEMORY
Preliminary User’s Manual U15905EJ1V0UD
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(1) Conflict of signals
When the dedicated flash programmer (output) is connected to a serial interface pin (input) that is connected to
another device (output), a conflict of signals occurs. To avoid the conflict of signals, isolate the connection to
the other device or set the other device to the output high-impedance status.
Figure 18-6. Conflict of Signals (Serial Interface Input Pin)
V850ES/SA2, V850ES/SA3
Input pin
Conflict of signals
Dedicated flash programmer
connection pins
Other device
Output pin
In the flash memory programming mode, the signal that the dedicated flash
programmer sends out conflicts with signals another device outputs.
Therefore, isolate the signals on the other device side.
Summary of Contents for V850ES/SA2 UPD703201
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