Flash Memory Characteristics; Programming Environment - NEC UPD789426 Series User Manual

17.1 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
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 made by 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 small-quantity, varied model production
• Easy data adjustment when starting mass production

17.1.1 Programming environment

The following shows the environment required for
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 to the manuals for Flashpro III/Flashpro IV.
Remark USB is supported by Flashpro IV only.
Figure 17-1. Environment for Writing Program to Flash Memory
Host machine
µ
CHAPTER 17 PD78F9436, 78F9456
µ
PD78F9436 and 78F9456 flash memory programming.
RS-232C
USB
Dedicated flash
programmer
User's Manual U15075EJ2V1UD
µ
PD78F9436 or 78F9456
V
PP
V
DD
V
SS
RESET
3-wire serial I/O
µ
PD78F9436,
or UART
78F9456
295