Writing With Flash Programmer - NEC 78K0S/KA1+ Preliminary User's Manual

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18.4 Writing with Flash Programmer

Data can be written to the flash memory on-board or off-board, by using a dedicated flash programmer.
(1) On-board programming
The contents of the flash memory can be rewritten after the 78K0S/KA1+ has been mounted on the target system.
The connectors that connect the dedicated flash programmer must be mounted on the target system.
(2) Off-board programming
Data can be written to the flash memory with a dedicated program adapter (FA series) before the 78K0S/KA1+ is
mounted on the target system.
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Remark
Pin Name
Note
CLK
Note
FLMD0
Note
RxD
Note
TxD
/RESET
V
DD
GND
Note In the 78K0S/KA1+, the CLK and FLMD0 signals are connected to the X1 pin and the RxD and TxD signals
to the X2 signal; therefore, these signals need to be directly connected. However, the dedicated flash
programmer provides a dedicated adapter for the 78K0S/KA1+, so signals do not need to be internally
connected. Therefore, connect the X1 or X2 pin on-board to either one of the corresponding signal lines.
264
CHAPTER 18 FLASH MEMORY
The FA series is a product of Naito Densei Machida Mfg. Co., Ltd.
Table 18-4. Wiring Between 78K0S/KA1+ and Dedicated Flash Programmer
Pin Configuration of Dedicated Flash Programmer
I/O
Output Clock to 78K0S/KA1+
Output On-board mode signal
Input Receive signal
Output Receive signal/on-board mode signal
Output Reset signal
I/O V voltage generation
DD
– Ground
Preliminary User's Manual U16898EJ1V0UD
Pin Function
X1
X2
RESET
V
V
Pin Configuration of 78K0S/KA1+
Pin Name Pin No.
2
3
6
5
DD
1
SS