R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 1118

• Manufacturer Part Number: R4F24268NVFQV
• Description: MCU 256K FLASH 48K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24268NVFQV

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 21 Flash Memory
21.3.2
Setting the FMCMDEN bit in FLMCR1 to 1 shifts the flash memory into the user programming
mode, in which commands can be accepted. Figure 21.2 shows how to set and clear the EW0
mode.
Programming and erasure are controlled through software commands. The flash memory state
after programming or erasure can be checked through FLMSTR or the status register.
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Notes:
Jump to the programming control program transferred
to an area outside the flash memory.
(The subsequent processing should be done by
the transferred programming control program.)
EW0 mode processing procedures
EW0 Mode
Transfer the programming control program
to an area outside the flash memory. *
1.
2.
3.
Single-chip mode or
on-chip ROM enabled expanded mode
To set the FMCMDEN bit to 1, write 0 to the bit and then write 1 to it in a row.
Write to the FMCMDEN bit from an area outside the on-chip flash memory.
After a read array command, disable user programming mode.
In user programming mode, execute the programming control program in
the on-chip RAM or external area.
Set the FLSHE in SYSCR.
Figure 21.2 Setting and Clearing EW0 Mode
3
Programming control program*
Write 1 to the CBIDB bit (user programming mode
disabled).
Jump to a desired address in the flash memory.
Write 0 to the FMCMDEN bit and then write 1
Clear CBIDB to 0.
to it (user programming mode enabled).*
Execute a read array command.*
Execute software commands.
H8S/2426, H8S/2426R, H8S/2424 Group
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REJ09B0466-0350 Rev. 3.50
2
1
Jul 09, 2010