Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 31 FLASH MEMORY
R01UH0042EJ0500 Rev.5.00 Page 1377 of 1513
Aug 12, 2011
31.4.5 Communication commands
The V850ES/JG3-H and V850ES/JH3-H communicate with the dedicated flash programmer by means of commands.
The signals sent from the dedicated flash programmer to the V850ES/JG3-H and V850ES/JH3-H are called “commands”.
The response signals sent from the V850ES/JG3-H and V850ES/JH3-H to the dedicated flash programmer are called
“response commands”.
Figure 31-10. Communication Commands
V850ES/JG3-H,
V850ES/JH3-H
Command
Response command
Dedicated flash programmer
The following shows the commands for flash memory control in the V850ES/JG3-H and V850ES/JH3-H. All of these
commands are issued from the dedicated flash programmer, and the V850ES/JG3-H and V850ES/JH3-H perform the
processing corresponding to the commands.
Table 31-8. Flash Memory Control Commands
Support Classification Command Name
CSIF0,
CSIF3
CSIF0 + HS,
CSIF3 + HS
UARTC0
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 flash memory.
Silicon signature
command
√ √ √
Reads silicon signature information.
System setting,
control
Security setting
command
√ √ √
Prohibits the chip erase command, block
erase command, program command, read
command, and boot area rewrite.