r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 676

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
Figure 26.12
Notes:
1. The interrupt vector table and interrupt routine for interrupts to be used must be allocated to an area other than the erase target
2. td(SR-SUS) is required until suspend is acknowledged after the FMR21 bit is set to 1.
3. When auto-erasure suspends, a flash ready status interrupt is generated.
area.
The interrupt to enter suspend must be enabled beforehand.
Preliminary document
Specifications in this document are tentative and subject to change.
Block Erase Flowchart (Flash Ready Status Interrupt Enabled and Suspend Enabled)
Write D0h to any address
Write the command code
I = 1 (interrupt enabled)
Block erase completed
RDYSTIE = 1
of the block
FMR20 = 1
Start
20h
Access the flash memory
Flash ready status
interrupt
RDYSTI = 0
FMR21 = 0
FST6 = 1?
REIT
(1, 3)
Yes
Maskable interrupt
No
FMR21 = 1
REIT
Full status check
I: Flag in CPU register
RDYSTI, FST6: Bits in FST register
RDYSTIE: Bit in FMR0 register
FMR20, FMR21: Bits in FMR2 register
(2)
(1)
26. Flash Memory
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