
CHAPTER 25 FLASH MEMORY
User
’
s Manual U15862EJ3V0UD
697
25.6.4 Communication commands
The V850ES/KF1, V850ES/KG1, and V850ES/KJ1 communicate with the flash programmer by using commands.
The commands sent from the flash programmer to the V850ES/KF1, V850ES/KG1, and V850ES/KJ1 are called
commands, and the commands sent from the V850ES/KF1, V850ES/KG1, and V850ES/KJ1 to the flash programmer
are called response commands.
Figure 25-14. Communication Commands
Flash programmer
Command
Response command
V850ES/KF1,
V850ES/KG1,
V850ES/KJ1
PG-FP4
(Flash Pro4)
Cxxxxxx
Bxxxxx
Axxxx
XY
X
X
X
XY
STATVE
The flash memory control commands of the V850ES/KF1, V850ES/KG1, and V850ES/KJ1 are listed in the table
below. All these commands are issued from the programmer and the V850ES/KF1, V850ES/KG1, and V850ES/KJ1
perform processing corresponding to the respective commands.
Table 25-7. Flash Memory Control Commands
Classification
Command Name
Function
Verify
Batch verify command
Compares the contents of the entire memory
with the input data.
Erase
Batch erase command
Erases the contents of the entire memory.
Blank check
Batch blank check command
Checks the erasure status of the entire memory.
High-speed write command
Writes data by specifying the write address and
number of bytes to be written, and executes a
verify check.
Data write
Successive write command
Writes data from the address following that of
the high-speed write command executed
immediately before, and executes a verify
check.
Status read command
Obtains the operation status
Oscillation frequency setting command
Sets the oscillation frequency
Erase time setting command
Sets the erase time for batch erase
Write time setting command
Sets the write time for writing data
Baud rate setting command
Sets the baud rate when UART is used
Silicon signature command
Reads the silicon signature information
System setting, control
Reset command
Escapes from each status
The V850ES/KF1, V850ES/KG1, and V850ES/KJ1 return a response command for the command issued by the
dedicated flash programmer. The response commands sent from the V850ES/KF1, V850ES/KG1, and V850ES/KJ1
are listed below.