UPD70F3451GC-UBT-A Datasheet, PDF (1094/1191 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 27 FLASH MEMORY
27.8.3 Communication commands
The V850E/IF3 and V850E/IG3 communicate with a flash memory programmer by means of commands. The
commands sent from the flash memory programmer to the V850E/IF3 or V850E/IG3 are called “commands”. The
response signals sent from the V850E/IF3 or V850E/IG3 to the flash memory programmer are called “response
commands”.
Flash memory
programmer
Command
Response command
V850E/IF3,
V850E/IG3
The following shows the commands for flash memory control in the V850E/IF3 and V850E/IG3. All of these
commands are issued from the dedicated flash memory programmer, and the V850E/IF3 and V850E/IG3 perform the
processing corresponding to the commands.
Table 27-9. Flash Memory Control Commands
Classification
Command Name
Verify
Block verify command
Erase
Chip erase command
Blank check
Block erase command
Block blank check command
Data write
Data read
System
setting and
control
Write command
Read command
Status command
Oscillation frequency setting
command
Baud rate setting command
Silicon signature command
Version acquisition command
Security setting command
Checksum command
Reset command
Note CSIB0 for handshake
Support
UARTA0 CSIB0
√
√
Note
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
×
√
√
√
√
Function
Compares the contents of the specified
block and the input data
Erases the contents of the entire flash
memory
Erases the specified block contents.
Checks the erase state of the specified
block.
Writes data to the specified block.
Reads out data of the specified block.
Obtains the status of operations.
Sets the oscillation frequency.
√
×
×
Changes the baud rate when UART0 is
selected.
√
√
√
Reads out the silicon signature
information.
√
√
√
Reads out the device version and
firmware version.
√
√
√
Sets the security information and the
boot block size.
√
√
√
Sends the checksum value of the
specified block data.
√
√
√
Used for communication synchronization
detecting.
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User’s Manual U18279EJ3V0UD