6. ROM
Rev.3.00 Jul. 19, 2007 page 134 of 532
REJ09B0397-0300
Start
Set pins to boot mode and
execute reset start
Host transmits data (H'00)
continuously at prescribed bit rate
After receiving H'55, chip transmits
one H'AA data byte to host
Chip measures low period of H'00 data
transmitted by host
Host transmits programming control
program sequentially in byte units
Transfer received programming control
program to on-chip RAM
Execute programming control program
transferred to on-chip RAM
Chip calculates bit rate and sets value
in bit rate register
Host confirms normal reception of bit rate
adjustment end indication (H'00), and
transmits one H'55 data byte
After bit rate adjustment, chip transmits one
H'00 data byte to host to indicate end of
adjustment
Host transmits number of programming
control program bytes (N), upper byte
followed by lower byte
Chip transmits received programming
control program to host as verify data
(echo-back)
n = 1
End of transmission
Chip transmits received number of bytes
to host as verify data (echo-back)
Check flash memory data, and if data has
already been written, erase all blocks
After confirming that all flash memory data
has been erased, chip transmits one H'AA
byte to host
n = N ?
n + 1
→
n
Note: If a memory cell does not operate normally and cannot be erased, one
H'FF byte is transmitted as an erase error, and the erase operation and
subsequent operations are halted.
Yes
No
Figure 6.8 Boot Mode Execution Procedure
Summary of Contents for F-ZTAT H8 Series
Page 6: ...Rev 3 00 Jul 19 2007 page iv of xxiv REJ09B0397 0300...
Page 194: ...7 RAM Rev 3 00 Jul 19 2007 page 168 of 532 REJ09B0397 0300...
Page 234: ...8 I O Ports Rev 3 00 Jul 19 2007 page 208 of 532 REJ09B0397 0300...
Page 274: ...9 Timers Rev 3 00 Jul 19 2007 page 248 of 532 REJ09B0397 0300...
Page 352: ...12 A D Converter Rev 3 00 Jul 19 2007 page 326 of 532 REJ09B0397 0300...
Page 561: ......
