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16.6.4 Communication commands
The V850E/IA1 communicates with the dedicated flash programmer by means of commands. A command sent
from the dedicated flash programmer to the V850E/IA1 is called a "command". The response signal sent from the
V850E/IA1 to the dedicated flash programmer is called the "response command".
The following shows the commands for controlling flash memory of the V850E/IA1. All of these commands are
issued from the dedicated flash programmer, and the V850E/IA1 performs the various processing corresponding to
the commands.
Category
Verify
Erase
Blank check
Data write
System setting and control
738
CHAPTER 16 FLASH MEMORY ( µ µ µ µ PD70F3116)
Figure 16-11. Communication Commands
Axxxx
Bxxxxx
Cxxxxxx
STATVE
PG-FP4
Dedicated flash programmer
Table 16-4. Commands for Controlling Flash Memory
Command Name
Batch verify command
Area verify command
Batch erase command
Area erase command
Write back command
Batch blank check command
Area blank check command
High-speed write command
Continuous write command
Status read out command
Oscillation frequency setting command
Erasing time setting command
Writing time setting command
Write back time setting command
Silicon signature command
Reset command
User's Manual U14492EJ3V0UD
Command
Response
command
V850E/IA1
Compares the contents of the entire memory and
the input data.
Compares the contents of the specified area and
the input data.
Erases the contents of the entire memory.
Erases the contents of the specified area.
Writes back the contents which were erased.
Checks the erase state of the entire memory.
Checks the erase state of the specified area.
Writes data by the specification of the write
address and the number of bytes to be written,
and executes verify check.
Writes data from the address following the high-
speed write command executed immediately
before, and executes verify check.
Acquires the status of operations.
Sets the oscillation frequency.
Sets the erasing time of batch erase.
Sets the writing time of data write.
Sets the write back time.
Reads outs the silicon signature information.
Escapes from each state.
Function
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