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CHAPTER 17
µ
PD178F054
User’s Manual U15104EJ2V0UD
17.3 Flash Memory Programming
The program memory provided in the
µ
PD178F054 is flash memory.
The flash memory can be written on-board, i.e., with the
µ
PD178F054 mounted on the target system. To do so,
connect a dedicated flash programmer (Flashpro III (Part number: FL-PR3, PG-FP3)) to the host machine and target
system.
Remark
FL-PR3 and PG-FP3 are products of Naito Densei Machida Mfg. Co., Ltd.
17.3.1 Selecting communication mode
The flash memory is written by using Flashpro III and by means of serial communication. Select a communication
mode from those listed in Table 17-4. To select a communication mode, the format shown in Figure 17-3 is used.
Each communication mode is selected depending on the number of V
PP
pulses shown in Table 17-4.
Table 17-4. Communication Modes
Communication Mode
Pins Used
Number of V
PP
Pulses
3-wire serial I/O (SIO3)
SI30/P70
0
SO30/P71
SCK30/P72
SI31/P74
1
SO31/P75
SCK31/P76
SI32/P120
2
SO32/P121
SCK32/P122
Caution
Be sure to select a communication mode by the number of V
PP
pulses shown
in Table 17-4.
Figure 17-3. Format of Communication Mode Selection
1
2
n
10 V
V
DD
GND
V
PP
V
DD
GND
RESET