CHAPTER 14 FLASH MEMORY (
µµµµ
PD70F3102, 70F3102A)
User’s Manual U12688EJ4V0UM00
420
14.6.4 Communication command
The V850E/MS1 communicates with the dedicated flash programmer by means of commands. A command sent
from the dedicated flash programmer to the V850E/MS1 is called a “command”. The response signal sent from the
V850E/MS1 to the dedicated flash programmer is called a “response command”.
V850E/MS1
Dedicated flash programmer
Command
Response
command
The following shows the commands of the firmware for flash memory control of the V850E/MS1. All of these
commands are issued from the dedicated flash programmer, and the V850E/MS1 performs the various processing
corresponding to the commands.
Category
Command Name
Function
One-shot verify command
Compares the contents of the entire memory and
the input data.
Verify
Block verify command
Compares the contents of the specified memory
block and the input data.
One-shot erase command
Erases the contents of the entire memory.
Block erase command
Erases the contents of the specified memory block
setting 4 Kbytes as one memory block.
Erase
Write back command
Writes back the contents that is over-erased.
One-shot blank check command
Checks the erase state of the entire memory.
Blank check
Block blank check command
Checks the erase of the specified memory block.
High-speed write command
Writes data by the specification of the write
address and the number of bytes to be written,
and executes verify check.
Data write
Continuous write command
Writes data from the address following the high-
speed write command executed immediately
before, and executes verify check.
Status read out command
Acquires the status of operations.
Oscillating frequency setting command
Sets the oscillating frequency.
Erasing time setting command
Sets the erasing time of one-shot erase.
Writing time setting command
Sets the writing time of data write.
Write back time setting command
Sets the write back time.
Baud rate setting command
Sets the baud rate when using UART0.
Silicon signature command
Reads outs the silicon signature information.
System setting and control
Reset command
Escapes from each state.
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