Datasheet

Section 22 Flash Memory
Rev. 3.00 Sep. 28, 2009 Page 740 of 910
REJ09B0350-0300
• Block last Address (four bytes): Last address of a block
There are as many groups of data representing the start and last addresses as there are areas.
• SUM (one byte): Checksum
(j) Programming Unit Inquiry
The boot program will return the programming unit used to program data.
Command H'27
• Command, H'27, (one byte): Inquiry regarding programming unit
Response H'37 Size Programming unit SUM
• Response, H'37, (one byte): Response to programming unit inquiry
• Size (one byte): The number of bytes that indicate the programming unit, which is fixed to 2
• Programming unit (two bytes): A unit for programming
This is the unit for reception of programming.
• SUM (one byte): Checksum
(k) New Bit-Rate Selection
The boot program will set a new bit rate and return the new bit rate.
This selection should be sent after sending the clock mode selection command.
Command H'3F Size Bit rate Input frequency
Number of division
ratios
Division ratio
1
Division ratio
2
SUM
• Command, H'3F, (one byte): Selection of new bit rate
• Size (one byte): The total number of bytes that represents the bit rate, input frequency, number
of division ratios, and division ratio
• Bit rate (two bytes): New bit rate
One hundredth of the value (e.g. when the value is 19200 bps, it will be 192, which is H'00C0.)
• Input frequency (two bytes): Frequency of the clock input to the boot program
This is valid to the hundredths place and represents the value in MHz multiplied by 100. (E.g.
when the value is 20.00 MHz, it will be 2000, which is H'07D0.)