r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 667
r5f21368sdfp
Manufacturer Part Number
r5f21368sdfp
Description
Renesas Mcu R8c Family / R8c/3xt-a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F21368SDFP.pdf
(760 pages)
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Part Number:
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Manufacturer:
Renesas Electronics America
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Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
Figure 26.3
Figure 26.4
26.5.3
FMR01: Bit in FMR0 register
EW0 Mode Execution Procedure
(when rewriting user ROM)
Note:
Jump to the rewrite control program transferred
Transfer the rewrite control program that uses
Figure 26.3 shows Setting and Cancelling EW0 Mode and Figure 26.4 shows Setting and Cancelling EW0
Mode (when Rewriting Data Flash) and EW1 Mode.
1. To set the FMR01 bit to 1, first write 0 and then 1 immediately. Disable interrupts and DTC activation between writing 0 and writing 1.
(The subsequent process is executed by
the rewrite control program in the RAM)
Writing to the FMR01 bit must be performed in the RAM.
Setting and Cancelling Each Mode
CPU rewrite mode to the RAM
Preliminary document
Specifications in this document are tentative and subject to change.
Setting and Cancelling EW0 Mode
Setting and Cancelling EW0 Mode (when Rewriting Data Flash) and EW1 Mode
to the RAM
EW0 Mode Execution Procedure (when rewriting data flash)
EW1 Mode Execution Procedure
Notes:
FMR01, FMR02: Bits in FMR0 register
1. To set the FMR01 bit to 1, first write 0 and then 1 immediately.
2. Not necessary when rewriting the data flash in EW0 mode.
Disable interrupts and DTC activation between writing 0 and writing 1.
After writing 0 to the FMR01 bit, write 1
After writing 0 to the FMR02 bit, write 1
Write 0 (CPU rewrite mode disabled) to
(CPU rewrite mode enabled)
Execute software commands
Program in ROM
Rewrite control program
(EW1 mode)
the FMR01 bit
Jump to any address in the flash memory
After writing 0 to the FMR01 bit, write 1
Write 0 (CPU rewrite mode disabled)
(CPU rewrite mode enabled)
Execute software commands
(2)
to the FMR01 bit
(1)
26. Flash Memory
(1)
Page 636 of 725
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