CHAPTER 18 FLASH MEMORY
Preliminary User’s Manual U16898EJ1V0UD
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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.
Remark 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
Pin Configuration of 78K0S/KA1+
Pin Name
I/O
Pin Function
Pin Name
Pin No.
CLK
Note
Output
Clock to 78K0S/KA1+
FLMD0
Note
Output On-board
mode
signal
X1 2
RxD
Note
Input Receive
signal
TxD
Note
Output
Receive signal/on-board mode signal
X2 3
/RESET Output Reset
signal
RESET
6
V
DD
I/O V
DD
voltage generation
V
DD
5
GND –
Ground
V
SS
1
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.
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