UPD78F9418AGK-9EU Renesas Electronics America, UPD78F9418AGK-9EU Datasheet - Page 263

• Manufacturer Part Number: UPD78F9418AGK-9EU
• Manufacturer: Renesas Electronics America

Specifications of UPD78F9418AGK-9EU

• Lead Free Status / Rohs Status: Supplier Unconfirmed

18.1.3 On-board pin connections
flash programmer.
programming mode is required.
When programming on the target system, provide a connector on the target system to connect to the dedicated
There may be cases in which an on-board function that switches from the normal operation mode to flash memory
<V
pin in the flash memory programming mode. Therefore, connect the V
(1)
(2)
The following shows an example of V
<Serial interface pins>
connected to another device is connected to the dedicated flash programmer.
PP
Input 0 V to the V
The following shows the pins used by each serial interface.
Note that signal conflict or malfunction of other devices may occur when an on-board serial interface pin that is
Connect a pull-down resistor of RV
Set the jumper on the board to switch the input of V
pin>
PP
PD78F9418A
pin in the normal operation mode. A write voltage of 10.0 V (TYP.) is supplied to the V
3-wire serial I/O
UART
Pseudo 3-wire
V
PP
Figure 18-4. V
Serial Interface
PP
pin connection.
PP
CHAPTER 18
User’s Manual U13952EJ3V1UD
= 10 k to the V
Connection pin of dedicated flash programmer
PP
Pull-down resistor (RV
Pin Connection Example
PP
PD78F9418A
PP
pin to the programmer side or directly to GND.
SI, SO, SCK
RxD, TxD
P00, P01, P02
P40, P41, P42
pin.
Pins Used
PP
PP
)
pin using method (1) or (2) below.
261
PP