CHAPTER 19 FLASH MEMORY VERSION
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User’s Manual U15331EJ4V1UD
19.1 Flash Memory Characteristics
Flash memory programming is performed by connecting a dedicated flash programmer (Flashpro III (part no. FL-
PR3, PG-FP3)/Flashpro IV (part no. FL-PR4, PG-FP4)) to the target system with the
µ
PD78F9488 or 78F9489
mounted on the target system (on-board). A flash memory program adapter (FA adapter), which is a target board used
exclusively for programming, is also provided.
Remark
FL-PR3, FL-PR4, and the program adapter are products of Naito Densei Machida Mfg. Co., Ltd. (TEL
+81-45-475-4191).
Programming using flash memory has the following advantages.
•
Software can be modified after the microcontroller is solder-mounted on the target system.
•
Distinguishing software facilities low-quantity, varied model production
•
Easy data adjustment when starting mass production
19.1.1 Programming environment
The following shows the environment required for
µ
PD78F9488 and 78F9489 flash memory programming.
When Flashpro III (part no. FL-PR3, PG-FP3) or Flashpro IV (part no. FL-PR4, PG-FP4) is used as a dedicated
flash programmer, a host machine is required to control the dedicated flash programmer. Communication between the
host machine and flash programmer is performed via RS-232C/USB (Rev. 1.1).
For details, refer the manuals of Flashpro III/Flashpro IV.
Remark
USB is supported by Flashpro IV only.
Figure 19-1. Environment for Writing Program to Flash Memory
Host machine
RS-232C
USB
Dedicated flash
programmer
PD78F9488
or PD78F9489
V
PP
V
DD
V
SS
RESET
3-wire serial I/O
or UART
µ
µ