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The µ PD70F3116 is the flash memory version of the V850E/IA1 and it has an on-chip 256 KB flash memory
configured as two 128 KB areas.
Caution There are differences in noise immunity and noise radiation between the flash memory and mask
ROM versions. When pre-producing an application set with the flash memory version and then
mass producing it with the mask ROM version, be sure to conduct sufficient evaluations on the
commercial samples (CS) (not engineering samples (ES)) of the mask ROM versions.
Writing to a flash memory can be performed with memory mounted on the target system (on board).
dedicated flash programmer is connected to the target system to perform writing.
The following can be considered as the development environment and the applications using a flash memory.
• Software can be changed after the V850E/IA1 is solder mounted on the target system.
• Small scale production of various models is made easier by differentiating software.
• Data adjustment in starting mass production is made easier.
16.1 Features
• All area batch erase, or erase in area units (128 KB)
• Communication through serial interface from the dedicated flash programmer
• Erase/write voltage: V
• On-board programming
• Flash memory programming is possible by the self-programming in area units (128 KB)
16.2 Writing by Flash Programmer
Writing can be performed either on-board or off-board by the dedicated flash programmer.
Caution When writing data with the flash programmer, the operation is always performed at the
frequency multiplied by 5 in the PLL mode.
(1) On-board programming
The contents of the flash memory is rewritten after the V850E/IA1 is mounted on the target system. Mount
connectors, etc., on the target system to connect the dedicated flash programmer.
(2) Off-board programming
Writing to a flash memory is performed by the dedicated program adapter (FA Series), etc., before mounting
the V850E/IA1 on the target system.
Remark The FA Series is a product of Naito Densei Machida Mfg. Co., Ltd.
CHAPTER 16 FLASH MEMORY ( µ µ µ µ PD70F3116)
= 7.8 V
PP
User's Manual U14492EJ3V0UD
The
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