Datasheet

V850ES/JG3 CHAPTER 27 FLASH MEMORY
R01UH0015EJ0300 Rev.3.00 Page 736 of 870
Sep 30, 2010
27.4.5 Communication commands
The V850ES/JG3 communicates with the dedicated flash programmer by means of commands. The signals sent from
the dedicated flash programmer to the V850ES/JG3 are called “commands”. The response signals sent from the
V850ES/JG3 to the dedicated flash programmer are called “response commands”.
Figure 27-9. Communication Commands
V850ES/JG3
Command
Response command
Dedicated flash
programmer
The following shows the commands for flash memory control in the V850ES/JG3. All of these commands are issued
from the dedicated flash programmer, and the V850ES/JG3 performs the processing corresponding to the commands.
Table 27-7. Flash Memory Control Commands
Support Classification Command Name
CSIB0,
CSIB3
CSIB0 + HS,
CSIB3 + HS
UARTA0
Function
Blank check
Block blank check
command
√ √ √
Checks if the contents of the memory in the
specified block have been correctly erased.
Chip erase command
√ √ √
Erases the contents of the entire memory.
Erase
Block erase command
√ √ √
Erases the contents of the memory of the
specified block.
Write Program command
√ √ √
Writes the specified address range, and
executes a contents verify check.
Verify command
√ √ √
Compares the contents of memory in the
specified address range with data
transferred from the flash programmer.
Verify
Checksum command
√ √ √
Reads the checksum in the specified
address range.
Read Read command
√ √ √
Reads the data written to the flash memory.
Silicon signature
command
√ √ √
Reads silicon signature information.
System setting,
control
Security setting
command
√ √ √
Disables the chip erase command, block
erase command, program command, read
command, and boot area rewrite.